#linuxcnc | Logs for 2014-11-12

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[00:29:17] <zeeshan|2> slowly getting there
[00:29:53] <zeeshan|2> https://www.flickr.com/photos/128539016@N05/15768927021/
[00:29:58] <zeeshan|2> is there any way to hold down pci cards
[00:30:04] <zeeshan|2> without making a bracket
[00:41:16] <Connor> I would attach a L l Shaped bracket across the top of them to the side panel
[00:41:42] <Connor> What are those cards next to the 7i77 ?
[00:41:50] <zeeshan|2> interpolators
[00:45:32] <zeeshan|2> i wonder if the tachogen signal
[00:45:34] <zeeshan|2> is noisy
[00:45:40] <zeeshan|2> tachometer
[01:00:41] <Computer_Barf> does pneumatic power drawbars rotate the drawbar?
[01:01:38] <Computer_Barf> http://www.cnczone.com/forums/benchtop-machines/222190-high-tension-power-drawbar-using-3in-cylinder-4.html
[01:01:56] <Computer_Barf> i see stuff like this, but i dont see how the rotational force happens.
[01:45:50] <archivist> Computer_Barf, usually there is a gripper, no rotation needed
[01:47:09] <archivist> instead of threading into the tooling with the drawbar there is an inserted stud
[01:52:13] <Computer_Barf> so all it has to do is push down?
[01:59:10] <Computer_Barf> archivist: ok i saw a cross section picture of a gripper. typically does it push down the drawbar to grip or release?
[02:03:09] <archivist> Computer_Barf, depends on design usually pushes down to release, there being a stack of belville springs to return
[02:05:52] <Deejay> moin
[02:07:06] <Computer_Barf> http://www.cnczone.com/forums/benchtop-machines/222190-high-tension-power-drawbar-using-3in-cylinder-4.html
[02:07:37] <Computer_Barf> this is the one ive been looking at.. but mostly ive been trying to grasp the basic mechanics of how draw bars work
[02:09:22] <archivist> I thought I had something in my bookmarks suitable
[02:14:41] <archivist> ah found one http://blog.cnccookbook.com/2014/06/11/ultimate-benchtop-cnc-mini-mill-part-7-spindle-drawbar-and-toolchanger/
[02:15:06] <archivist> you can see the various parts in the 3d cut away
[05:39:20] <Loetmichel> mornin'
[05:45:30] <archivist> moaning
[07:22:57] * jthornton can at least draw a line in opengl now
[07:23:03] <jthornton> screw cairo
[07:25:01] <archivist> which cairo :)
[07:25:50] <jthornton> http://cairographics.org/
[07:27:18] <archivist> iirc one of the windows versions was called cairo too
[07:28:54] <jthornton> ah, I quit upgrading my windoze machines
[07:34:05] <Tom_itx> haha
[07:34:23] <Tom_itx> can't figure it out ehh?
[07:34:41] <archivist> no one can figure out win 8 !
[07:35:01] <Tom_itx> that was by design
[07:35:35] <archivist> I just cannot understand how it got shipped
[07:35:49] <Tom_itx> just like ACA
[07:37:46] <Tom_itx> 17°F
[07:37:51] * Tom_itx shivers a bit
[07:39:55] <jthornton> hmm opengl can't draw an arc you have to draw it with lines
[07:41:06] <Tom_itx> i wonder if open_scad used that. it looks the same way
[07:41:17] <Tom_itx> everything is triangles in it
[07:45:13] <jthornton> http://slabode.exofire.net/circle_draw.shtml
[07:45:57] <archivist> who has hidden my draw of clock taper pins?
[07:49:19] <Tom_itx> jthornton, maybe you should look at their source: http://www.openscad.org/
[07:49:27] <Tom_itx> sounds quite similar
[07:49:59] <Tom_itx> with that said... i hated it
[09:10:59] <mozmck> most cad type things use opengl I think.
[09:12:52] <mozmck> jthornton: what are you doing with opengl? I've done some in it, but it is a little mind boggling. All the 1.x stuff the tutorials show is now deprecated, but that seems relative since only the very newest video cards support the newest opengl
[09:14:37] <JT-Shop> mozmck, I'm reading in a dxf file and wanting to display it... mostly for learning how
[09:14:50] <mozmck> so if you want something to run on most everything, you have to use the "old" version which they say is deprecated and not to use! at least from what I read...
[09:15:43] <mozmck> I see. It is interesting stuff. I had to model hollow pipes in 3D and manipulate them for a project.
[09:19:52] <JT-Shop> this is much simpler just 2d lines
[09:23:15] <CaptHindsight> http://bunniefoo.com/novena/pvt2_shoot/pvt-case-inside_sm.jpg how quickly could the bottom be machined in aluminum? The sides would be a separate part.
[09:25:10] <CaptHindsight> I don't see why anyone would invest in tooling to only injection mold a few thousand
[09:41:21] <CaptHindsight> http://www.esa.int/Our_Activities/Space_Science/Rosetta/Rosetta_to_deploy_lander_on_12_November -40 minutes to confirmation if it landed
[09:41:39] <tjtr33> CaptHindsight, i suspect Bunnies case is in this .stp file http://bunniefoo.com/novena/pvt1_release/novena-mechassy-dvt06.stp.zip
[09:42:18] <tjtr33> i didnt load tools to view it
[09:42:55] <CaptHindsight> tjtr33: it wouldn't need to be an exact copy, it's not that complicated
[09:43:08] <Jymmm> One small step for man, one giant leap for comet kind!
[09:43:43] <tjtr33> then fab it up , sheet material, pem nuts
[09:43:57] <CaptHindsight> pretty much
[09:44:33] <tjtr33> i like his work, he's not just a hobbyist, he's in business
[09:44:56] <CaptHindsight> it just seems like a large expense for so few parts and for such a simple case
[09:45:27] <tjtr33> yah, menards had 7" android tablets for 29$ this week
[09:45:47] <JT-Shop> menards?
[09:45:51] <tjtr33> yah
[09:45:58] <Jymmm> tjtr33: dual core and lousy display more than likely
[09:46:04] <CaptHindsight> yup, they don't much to make anymore
[09:46:07] <tjtr33> i think they had like 4 in illinois, everyone was 'out'
[09:46:09] <Jymmm> JT-Shop: it's a hardware store, like Ace or True Value
[09:46:17] <JT-Shop> yea we have one
[09:46:40] <CaptHindsight> only Home Depot size
[09:46:51] <JT-Shop> never seen the computer section
[09:47:04] <JT-Shop> the tablet is home depot size?
[09:47:28] <Jymmm> JT-Shop: Yeah, next to the plywood sheets
[09:47:34] <tjtr33> JT-Shop, does linuxcnc's minigl port help your arc drawing? ( Jepler and Cradek wrote it i think )
[09:47:36] <CaptHindsight> they carry seasonal items
[09:48:27] <JT-Shop> tjtr33, I've not looked at it or knew what it was LOL
[09:48:34] <CaptHindsight> http://www.menards.com/main/p-2313725-c-6299.htm maybe this one?
[09:48:57] <Jymmm> 4.3'' screen
[09:49:02] <CaptHindsight> $13.84 after Sale Price & Mail-In Rebate
[09:49:11] <tjtr33> its incredibly obfuscated, alias within alias, but it does all the axis rendering ( i _think_ )
[09:49:18] <Jymmm> sound like a broken cellphone to me
[09:49:27] <Jymmm> or a celless tablet
[09:49:38] <Jymmm> cellless??
[09:49:50] <CaptHindsight> remember when they were called PDA's?
[09:50:00] <Jymmm> lol, yes, sadly
[09:50:08] <Jymmm> and owned one too
[09:50:12] <Jymmm> Palm Pilot
[09:51:12] <Jymmm> Hell, my smarthone is bigger than that thing
[09:51:32] <Jymmm> for a 4.3" display, it sure does have a lot of margin
[09:51:43] <tjtr33> menards deal was only last Fri morning, and was fakey in that there were very few units scattered across the upper midwest
[09:51:54] <tjtr33> was 7inch http://bunniefoo.com/novena/pvt1_release/novena-mechassy-dvt06.stp.zip
[09:52:03] <CaptHindsight> http://armdevices.net/2013/09/15/30-allwinner-a13-7-android-tablet-factory-tour-zxs-zhixingsheng/
[09:52:04] <Jymmm> lost leader to get you in the store pre-blackfriday
[09:52:04] <tjtr33> even the flyer pages have been wiped
[09:52:18] * JT-Shop has problems following obfuscated code
[09:52:38] <tjtr33> oops the menards 7" androis was http://slickdeals.net/f/7323332-d2-713g-7-android-tablet-menards-39-99-or-29-99-ar-store-credit-ymmv
[09:54:22] <Jymmm> 1.0 GHz, Single Core
[09:54:27] <Jymmm> OUCH
[09:54:44] <tjtr33> yah JB4.1 etc old, just cheap
[09:54:55] <Jymmm> SINGLE core,
[09:56:05] <Jymmm> You couldn't even surf on it
[09:56:22] <zeeshan|2> http://www.cnc4pc.com/Store/osc/product_info.php?cPath=25&products_id=129
[09:56:25] <zeeshan|2> is there a card like this
[09:56:26] <Jymmm> well, maybe in 1989 you could =)
[09:56:29] <zeeshan|2> that can handle 3 sensors?
[09:56:44] <zeeshan|2> for full quadrature
[10:00:17] <Jymmm> http://www.alldatasheet.com/datasheet-pdf/pdf/172707/ONSEMI/74ACT14.html
[10:00:38] <zeeshan|2> i dont know microerlectronics
[10:00:41] <zeeshan|2> i need something already made
[10:01:09] <Jymmm> That's the chip used on that thing
[10:01:16] <Jymmm> just fyi
[10:02:11] <zeeshan|2> the photon coupled interruptor
[10:02:16] <zeeshan|2> that outputs a sine wave right?
[10:02:38] <zeeshan|2> and that chip you posted the datasheet about converts it to TTL?
[10:03:09] <CaptHindsight> the dual core ARM cortex A8 SOC's from Allwinner and Rockchip are ~$6
[10:04:06] <CaptHindsight> sorry A9's
[10:05:11] <CaptHindsight> the new 4 and 8 core A15's are ~$20 right now and will drop to ~$6 next year
[10:05:28] <CaptHindsight> so the Chinese ARM soc's are cheap
[10:06:42] <zeeshan|2> so i have six encoder inputs on the 7i77
[10:07:34] <tjtr33> hehe connect those to encoders! not to slow ho-made interruptors
[10:07:52] <zeeshan|2> tjtr33: but i have no encoder @ the spindle
[10:07:53] <zeeshan|2> i need to buy one
[10:08:10] <zeeshan|2> thats why im wondering what kind of encoder i should buy so that i can wire it directly to the mesa
[10:08:22] <zeeshan|2> its for the spindle so there is already a trigger wheel on there
[10:08:28] <zeeshan|2> but only 1 sensor..
[10:08:32] <zeeshan|2> which is being used to detect speed
[10:08:42] <zeeshan|2> i want to make it full quadrature so i can have rigid tapping inthe future
[10:10:02] <Tecan> quadrature... hmmmm
[10:10:39] <renesis> tecan: square wave pair 90deg out of phase
[10:10:46] <Tecan> linuxcnc is the only place i can go on irc and feel like a total retard
[10:11:00] <Tecan> its kinda nice
[10:11:03] <zeeshan|2> its just a esnsor
[10:11:13] <renesis> you can use it to tell direction along with speed
[10:11:14] <zeeshan|2> that lets you detect what speed the spindle is spinning at
[10:11:16] <zeeshan|2> and direction
[10:11:23] <renesis> well, its a signal type but close enough
[10:11:36] <zeeshan|2> you still nbeed another sensor
[10:11:38] <zeeshan|2> for index pulse
[10:11:50] <zeeshan|2> which tells the "starting" position of the spindle
[10:12:37] <zeeshan|2> hmm
[10:12:40] <Jymmm> zeeshan|2: No tapping for you, NEXT! s/Thread Nazi
[10:12:43] <zeeshan|2> i wonder if i can just use the single sensor as is..
[10:12:49] <zeeshan|2> and use the reverse/fwd signal from the vfd
[10:12:52] <zeeshan|2> :D
[10:13:24] <archivist> you need a proper encoder for tapping and hobbing on the spindle
[10:13:30] <zeeshan|2> yes archivist
[10:13:39] <skunkworks> we don
[10:13:42] <skunkworks> we don'
[10:13:48] <skunkworks> we don't joke about that...
[10:14:00] <tjtr33> these include some linuxcnc hacks to add encoders to spindles for rigid tapping http://goo.gl/BfCDFy
[10:14:18] <renesis> you can use non indexing for radius corrected speed
[10:14:20] <zeeshan|2> http://members.shaw.ca/swstuff/encoder-007.jpg
[10:14:24] <renesis> not totally useless
[10:14:25] <zeeshan|2> i was thinking of somethinglike this
[10:14:37] <zeeshan|2> but doesnt those sensors output an analog signal?
[10:14:43] <zeeshan|2> that'll need to be somehow converted to square wave
[10:14:53] <renesis> does that fuckup when you open the cabinet?
[10:14:54] <zeeshan|2> *be
[10:15:22] <archivist> zeeshan|2, should be ok as is if the right optos are used
[10:15:27] <renesis> everything outputs an analog signal, you could schmitt trigger it if you want to square it off
[10:15:43] <zeeshan|2> archivist i want to use that c3 card
[10:15:47] <zeeshan|2> but the problem is it means igotta buy 3
[10:15:49] <archivist> some optos have internal schmitt
[10:15:49] <renesis> schmitt trigger = comparator input gate
[10:15:55] <zeeshan|2> and thats okay, i just hate how ill have to mount 3 of them!!
[10:15:58] <zeeshan|2> ohhh!
[10:16:13] <zeeshan|2> so they'll output 5v square wave
[10:16:19] <tjtr33> thats not outputting analog, just sloppy edged square wave. real encoders will snap the edges squar-er yes schmidts
[10:16:26] <archivist> aw 3 how hard....get on with it!
[10:16:29] <renesis> everything is analog
[10:16:44] <zeeshan|2> so cmon experts
[10:16:51] <tjtr33> digital shoes :)
[10:16:53] <zeeshan|2> recommend me an opto that outputs a nice square wave!
[10:17:01] <zeeshan|2> and can handle 6000 rpm!
[10:17:04] <renesis> ...
[10:17:22] <renesis> it depends how you lead them, depends on the speed, depends on the detector distance and ambient light
[10:17:29] <renesis> load them
[10:17:40] <zeeshan|2> archivist: werent you using a fancy encoder :D
[10:17:46] <renesis> and 'how square' depends on the destination input
[10:17:56] <archivist> my starturn uses that method http://www.collection.archivist.info/archive/DJCPD/PD/2013/2013_08_04_starturn_encoder/IMG_1631.JPG
[10:18:06] <renesis> if youre destination is an opto with schmitts on the other side, a sine wave is prob square enough
[10:18:06] <zeeshan|2> 3 optos?
[10:18:09] <zeeshan|2> er 4?
[10:18:21] * zeeshan|2 cant tell
[10:18:24] <renesis> you shouldnt need more than 3
[10:18:27] <archivist> but that is speed limited by the parallel port
[10:18:41] <renesis> two on the main encoder wheel to do the 90deg phase diff and one for an index pulse
[10:18:52] <zeeshan|2> archivist: what encoder is that
[10:19:01] <archivist> separates
[10:19:31] <archivist> it only does screw cutting because A and index only
[10:19:49] <archivist> making another for the 5 axis
[10:20:06] <zeeshan|2> this cnc stuff is making me go crazy
[10:20:13] <zeeshan|2> i've literally considered 23149082093218 signals
[10:20:17] <zeeshan|2> power distribution
[10:20:28] <zeeshan|2> before i go to bed i try to recall if i forgot anything haha
[10:20:39] <archivist> hobbing requires direction too
[10:20:42] <zeeshan|2> yes
[10:20:45] <zeeshan|2> thats important to me
[10:21:24] <archivist> I used a 600 line ABZ encoder on the barber colman
[10:22:11] <zeeshan|2> theres 3 categories i see on digikey
[10:22:21] <zeeshan|2> "photo detectors" "photinterruptors" "reflective"
[10:22:28] <zeeshan|2> im assuming with a trigger wheel i'd want interruptor?
[10:22:37] <zeeshan|2> cause the light beam gets interrupted :d
[10:22:47] <archivist> yes
[10:23:10] <zeeshan|2> okay this is the only time digikey actually doesnt spit out 129032308932
[10:23:13] <zeeshan|2> entries.
[10:23:18] <zeeshan|2> http://www.digikey.com/product-detail/en/OPB950Z/365-1787-ND/1637569
[10:23:20] <renesis> thats usually a bad thing
[10:23:30] <renesis> means possible lead time and availability issues =(
[10:23:52] <zeeshan|2> sigh i dont see mounting points
[10:24:27] <renesis> nice, digital output
[10:24:31] <archivist> omron make some iirc
[10:25:00] <zeeshan|2> these are so cheap
[10:25:00] <zeeshan|2> lol
[10:25:11] <zeeshan|2> the hell did i buy a c3 card for my lathe for
[10:26:22] <renesis> haha @ detector diode spec'd at 3A pulse
[10:26:32] <renesis> def not fuckin around
[10:26:50] <tjtr33> do you already have that slotted disk? might be harder to buy than the interrupter
[10:27:13] <zeeshan|2> tjtr33: yes thers already a slot disk on the spindle
[10:27:14] <renesis> would think he could make that
[10:27:22] <zeeshan|2> i need to modify it to have index
[10:27:35] <zeeshan|2> and i guess a chan b.
[10:27:59] <renesis> chan B you just need to mount the encoders with correct offset
[10:28:21] <renesis> not sure he gets that yet
[10:28:21] <jdh> you can get them off ebay, dx, amazon, etc. already mounted, with mounting points anf filtering.
[10:28:33] <zeeshan|2> jdh what do i look for
[10:28:35] <tjtr33> and add the singularity spock! ( for index)
[10:29:04] <renesis> tjtr33: thst just seems like a drill or filing job if its not included, heh
[10:29:22] <tjtr33> yep a notch could do it
[10:29:24] <skunkworks> emcos... http://electronicsam.com/images/emco/oldencoder.JPG
[10:29:26] <renesis> comet lander didnt splode
[10:29:37] <skunkworks> (single channel with index)
[10:29:41] <tjtr33> nor splat
[10:31:12] <tjtr33> drilled slots, cool
[10:31:35] <skunkworks> I would guess punched... that is factory
[10:32:06] <renesis> seems pretty hack for a factory part, heheh
[10:32:15] <tjtr33> oh i though t you mad eit with an old saw blade
[10:32:39] <skunkworks> this is also factory.. (talking of hack...) http://electronicsam.com/images/emco/newencoder.JPG
[10:33:18] <renesis> ha, punched and then a guy with a cutoff wheel
[10:33:31] <jdh> Z: somethign liek: http://www.ebay.com/itm/181460158093
[10:33:52] <skunkworks> the newer lathes had a longer index pulse..
[10:36:22] <renesis> they prob change the edge direction they look for depending on direction?
[10:36:30] <renesis> hopefully
[10:37:41] <skunkworks> the spindle doesn't reverse on these lathes
[10:38:27] <archivist> probe landed!
[10:39:06] <zeeshan|2> jdh so cheap
[10:39:07] <zeeshan|2> haha
[10:39:11] <zeeshan|2> nice
[10:39:20] <jdh> there are lots of others, different size slots
[10:39:30] <zeeshan|2> do any have the pcb enclosed
[10:40:43] <jdh> http://www.ebay.com/itm/120798765436
[10:41:06] * zeeshan|2 buy something already made!!
[10:41:06] <zeeshan|2> :P
[10:41:11] <zeeshan|2> i'm already making enough :(
[10:41:20] <zeeshan|2> http://www.digikey.com/product-detail/en/HOA2005-001/480-1942-ND/679353
[10:41:21] <renesis> skunkworks: i guess that makes it easy
[10:41:24] <zeeshan|2> im kinda digging this sensor
[10:41:30] <zeeshan|2> but i dont see why theres 5 wires coming out of it
[10:41:32] <zeeshan|2> and not just 3
[10:42:18] <jdh> 4 wires.
[10:42:27] <zeeshan|2> i thought there were 3
[10:42:31] <zeeshan|2> vcc gnd and output
[10:42:44] <zeeshan|2> oh could be differential output
[10:42:44] <jdh> your digi link is 2 for led, to for photo
[10:42:46] <renesis> it has the detector LED broken out to its own pins
[10:43:18] <renesis> you can tie it to VCC and gnd with an external resistor in series
[10:43:54] <jdh> that will bounce on the edges without some filtering
[10:44:01] <zeeshan|2> ;[
[10:44:36] <jdh> http://amzn.com/B00EERJDY4
[10:44:57] <zeeshan|2> i really wantr that mounting style
[10:44:59] <zeeshan|2> of that one you posted
[10:45:01] <zeeshan|2> just the pcb enclosed
[10:45:05] <zeeshan|2> and hopefully a spec on the response time
[10:45:19] <zeeshan|2> if it outputs differential, that would be king
[10:45:24] * zeeshan|2 is asking for too much
[10:45:33] <renesis> hot glue = enclosed pcb
[10:45:56] <pcw_home> launch tube pressure drop?
[10:45:56] <renesis> i like to use masking tape as a potting mold
[10:46:15] <jdh> heh, no pressure drop on your launch tubes?
[10:46:44] <renesis> launch tube needs moar fiber
[10:48:17] <jdh> oh, that digi one does have a schmitt. should be fine
[10:48:30] <zeeshan|2> why are there 5 wires again?
[10:48:30] <zeeshan|2> 2 for led
[10:48:42] <zeeshan|2> for photointerruptor
[10:48:47] <zeeshan|2> whats the 5th
[10:49:02] <zeeshan|2> in the diagram i see
[10:49:08] <zeeshan|2> vcc, vo gnd anode cathode
[10:49:16] <zeeshan|2> "whats the signal" wire
[10:49:16] <zeeshan|2> :D
[10:49:24] <renesis> ...
[10:49:28] <jdh> Vo
[10:49:36] <renesis> two are for the emitter LED
[10:49:37] <zeeshan|2> so its a single ended output
[10:49:57] <zeeshan|2> okay thats a bit lame
[10:50:02] <zeeshan|2> cause that means im going to need a resistor externally
[10:50:06] <zeeshan|2> for the led.
[10:50:10] <renesis> its common emitter with an internal 10k pullup
[10:50:38] <renesis> heheh, he finally figured it out by himself
[10:51:23] <jdh> taht one looks more robust than the cheap one, but costs 4x as much
[10:51:30] <zeeshan|2> thjats okay
[10:51:40] <zeeshan|2> for me ease of use is more important
[10:51:47] <zeeshan|2> i just want to bolt it in and be done with it
[10:51:49] <jdh> yeah, some of us have to work to buy stuff though.
[10:52:02] <zeeshan|2> i work too
[10:52:03] <zeeshan|2> whats your point
[10:54:05] <zeeshan|2> it really looks like all these fancy sensors
[10:54:11] <zeeshan|2> require an external supply for the led
[10:54:14] <zeeshan|2> sigh
[10:54:47] <renesis> so you can adjust emitter intensity
[10:56:25] <renesis> youre probably gonna want external pullups for em immunity, too
[10:57:11] <jdh> or get the cheap chinese ones and pot them
[10:57:35] <renesis> theyre like $3/ea?
[10:57:50] <zeeshan|2> are you talking to renesis
[10:58:02] <zeeshan|2> has he been yapping
[10:58:14] <renesis> $4.50
[10:59:36] <renesis> i dont think he needs the wheels, tho
[11:00:34] <zeeshan|2> my search has failed
[11:00:48] <zeeshan|2> i have concluded no one makes a nice differential output optical encoder
[11:00:53] <zeeshan|2> at least on digikey
[11:01:12] <zeeshan|2> and they all need an external supply for the emitter
[11:01:16] <zeeshan|2> w some sort of resistor
[11:01:18] <renesis> $1 RRIO opamp to make one
[11:01:35] <renesis> but three resistors is too much drama, so...
[11:33:44] <Rab> zeeshan|2, beep
[11:33:48] <zeeshan|2> hi
[11:35:04] <Rab> zeeshan|2, I think I found the root cause of my backlash problems. The anti-backlash nut had fallen off, and was hanging out at the far end of the lead screw: http://reboots.g-cipher.net/ghettocnc/probacklash.jpg
[11:35:14] <zeeshan|2> hahaha
[11:35:17] <zeeshan|2> whoops :D
[11:35:28] <zeeshan|2> i really dig those screws
[11:35:31] <zeeshan|2> they look cool
[11:35:49] <Rab> Kind of impressed that it was holding .005, in retrospect. :P
[11:36:02] <zeeshan|2> really good screws :D
[11:36:44] <Rab> They are good. But I think I have to fix this nut...I dunno what the thread profile is, or even who has 8-start nuts.
[11:38:50] <Rab> Nothing seems to be worn or broken. The collar in the middle screws onto the left nut, and the spring keeps tension. The right nut mates to the left nut, but it seems free to rotate out. I don't know how it's supposed to stay in place.
[11:41:04] <zeeshan|2> some sort of lock collar|?
[11:41:06] <Rab> This is the only 8 start, .5", 1 lead nut I can find...no idea if it's right for the threads: http://www.amazon.com/Nook-Thread-Plastic-Starts-Diameter/dp/B004ZNUUNA/
[11:42:31] <Rab> I'm going to remove the screw, remove and nest all the nut parts and reassemble, on the theory that crashing at some point caused it to skip a thread or something.
[11:42:58] <archivist> if it skips it is already buggered
[11:43:32] <Rab> That's what I was thinking. :(
[11:44:19] <archivist> that can be remade on a linuxcnc screw cutting lathe with a bit of jiggery pokery
[11:45:04] <archivist> treat it as 8 separate threads with differing start points
[11:46:08] <Rab> Nothing like that kind of infrastructure around here that I know of, unless I can find a machine shop...I think final option might be to make an evannut out of delrin.
[11:46:33] <Rab> And if that doesn't work out, find a nice ballscrew.
[11:46:48] <archivist> where are you anyway
[11:48:45] <zeeshan|2> let me know if you cant find the nut
[11:48:49] <zeeshan|2> ill make you one on the cnc
[11:49:43] <zeeshan|2> acme threads right?
[11:49:51] <zeeshan|2> i has some acme inserts
[11:50:06] <archivist> does not look too acme to me
[11:50:08] <Rab> zeeshan|2, Austin TX.
[11:50:16] <zeeshan|2> Rab: ship!
[11:50:38] <Rab> Yeah, I don't know what the thread profile might be. It definately doesn't look square.
[11:50:57] <Rab> zeeshan|2, thanks g, I'll keep that in mind.
[11:52:19] <archivist> try a thread gauge on it or better a microscope with angle measuring to get the V angle
[12:17:12] <Tom_itx> might interest some of you: http://www.electronicproducts.com/Lighting/Light_Emitting_Diodes/Scientists_create_the_world_s_first_fully_functional_3D_printed_LED.aspx
[13:01:54] <Computer_Barf> No one read the article about my fully unfunctional printed plastic LED. Fascists.
[13:09:05] <CaptHindsight> sshhh don't tell them that they weren't first http://semiconwest.org/sites/semiconwest.org/files/6_William%20Ray_Nth%20Degree.pdf
[13:29:11] <Jymmm> Has anyone ever seen a hot water heater leak (maybe 16 ounces), with it NOT coming from the drain valve nor the safety release valve?
[13:29:24] <Jymmm> nor the pipes
[13:29:50] <Jymmm> then just stop.
[13:30:02] <renesis> condensation?
[13:30:09] <Jymmm> No
[13:31:23] <Jymmm> I can see where it "sourced" from under the bottom of the tank, but that's just the outter shell.
[13:33:18] <renesis> rab: even nut just works because tight fit?
[13:33:24] <renesis> evan nut
[13:34:23] <renesis> is like split nut anti-backlash without the ability to adjust when worn
[13:37:08] <Rab> renesis, right. Apparently the nuts are inherently zero-backlash to start with, and wear very well, but I don't think there have exactly been controlled trials or anything.
[13:37:29] <renesis> yeah i would expect them work great at first
[13:38:00] <Rab> Apparently the metal screw wears before the plastic.
[13:38:02] <renesis> splitting than and putting it in some sort of compression clamp seems easy enough
[13:38:08] <renesis> what?
[13:38:13] <renesis> that doesnt make sense
[13:38:30] <renesis> its delrin on magic, its self lubricating partially because of how it wears
[13:38:36] <renesis> *delrin not magic
[13:39:11] <Rab> Beats me, just going by whatever nonsense people say online.
[13:40:09] <Rab> I have a tapped delrin leadnut on the Z-axis, and it's worn fine without any backlash...but that's one tiny datapoint.
[13:40:25] <jdh> but 100% of your samples are good.
[13:40:36] <Rab> yeah man
[13:40:39] <renesis> Z doesnt count, you dont usually need a backlash nut anyway because of the weight all on one side of the screw
[13:40:43] <renesis> gravity and all
[13:41:18] <Rab> renesis, I'm sure there's an opportunity for backlash when plunging into the material.
[13:41:47] <renesis> right, depends on load, which depends on material and tool and plunge rate
[13:41:56] <renesis> itll settle at the same point tho
[13:42:06] <Rab> Sure, you have a reasonable point.
[13:42:09] <renesis> and if you pass over the same spot again, itll take care of any issue
[13:42:53] <renesis> its not like its a non issue on the Z, but compared to the problems on the X and Y, it almost is
[13:43:18] <renesis> like, arguably if youre lifting your Z, youve exceeded the envelop of the machine and tool into that material
[13:44:58] <renesis> rab: the same argument defeating gravity on Z could be made for exceeding the spring tension of the backlash nut
[13:45:20] <zeeshan|2> yea if you have a puny little machine
[13:45:22] <zeeshan|2> then that would be true
[13:45:25] <renesis> backlash isnt the same loaded versus unloaded
[13:45:31] <zeeshan|2> 1" drill bit plunging down
[13:45:36] <zeeshan|2> will easily generate 300lb of force axially
[13:45:38] <Rab> renesis, supposedly delrin nuts are competitive with ballscrews for wear and accuracy until your load tests the ductility of the nut.
[13:45:40] <renesis> well, any machine given enough load
[13:45:50] <zeeshan|2> enough to lift the head and move it
[13:45:51] <Rab> But I haven't seen much information about wear characteristics.
[13:45:55] <renesis> rab: right but over time the delrin wears
[13:46:20] <Rab> renesis, if the nut costs literally nothing but a few minutes, it's a consumable. ;)
[13:46:23] <renesis> delrin works well because you can form it easily and get exact fit and its slippery, itll wear less, but itll still wear
[13:46:37] <renesis> right but if you split it and can tighten it, its servicable
[13:46:52] <Rab> Yeah, I think there's been some discussion of that.
[13:46:57] <renesis> would be interested if anyone is doing it this way
[13:47:15] <renesis> rab: taig does it with brass
[13:47:28] <Rab> I think I could probably make an anti-backlash nut with two nuts and some rigging.
[13:47:45] <renesis> sprung nut?
[13:47:49] <Rab> yeah
[13:48:01] <renesis> yeah theres lots of designs for that
[13:48:12] <renesis> its basically what your screw had at first
[13:48:34] <renesis> did one of the threaded bits split on yours?
[13:48:49] <Rab> Sure. The existing nuts are made from some kind of plastic.
[13:48:50] <renesis> seems like maybe a set screw or something fell out
[13:49:36] <Rab> I dunno, I'd think a collar but there's nothing like that. Nor are there particles of plastic I can identify as coming from the nuts.
[13:49:37] <renesis> metal and high tension springs will work well but itll wear the screw down, probably
[13:50:05] <renesis> so over time the screw will wear down more where you do work, if your backlash solution is good maybe compensates for that anyway
[13:50:36] <renesis> rab: yeah weird i dont get how one is mated to the other
[13:50:53] <Rab> There's no telling how much wear was already on these parts. They seem well-loved. I should probably start looking for a ballscrew.
[13:51:23] <renesis> the bearings one the end(s) seems okay?
[13:52:23] <renesis> would just try delrin nut before dropping lots of money on ballscrew setup
[13:52:54] <Rab> The end bearings seem ghetto...everything is ghetto.
[13:53:01] <renesis> split-clamped delrin nut would be a permanent solution but it might be problematic if the screw is unevenly worn
[13:53:10] <renesis> a normal unsplit delrin nut will have problems, too
[13:53:39] <Rab> Oh, HAHA: http://reboots.g-cipher.net/ghettocnc/parts07.jpg
[13:54:07] <Rab> The brown collar is the anti-backlash nut. It's always been broken, I just didn't notice because the leadnut was mounted under the table!
[13:54:22] <Rab> That's a pic from the initial pile of parts.
[13:54:23] <renesis> that encoder is a limit switch?
[13:54:27] <Rab> yah
[13:54:34] <Rab> I used microswitches.
[13:55:07] <renesis> bug resistant
[13:55:59] <renesis> rab: i guess see if theres a pin or set screw supposed to keep the ywo halves of the nut mated
[13:56:05] <renesis> two
[13:56:22] <Rab> renesis, maybe something broke off before the parts came my way.
[13:56:37] <renesis> probably, but maybe easy fix
[13:56:40] <zeeshan|2> hi rab
[13:56:46] <Rab> zeeshan|2, hey!
[13:56:47] <zeeshan|2> you dont need that optical interruptor
[13:56:48] <zeeshan|2> send it to me
[13:56:50] <zeeshan|2> !
[13:57:01] <Rab> zeeshan|2, those things grow on trees.
[13:57:05] <zeeshan|2> lol
[13:57:11] <renesis> open some mice
[13:57:13] <zeeshan|2> rab i cant find one with differential output 5v
[13:57:16] <zeeshan|2> ttl
[13:57:21] <Rab> You can get them from copiers, printers, etc etc.
[13:57:34] <Rab> You're right that I don't need it.
[13:57:35] <renesis> differential would just make the quadrature part confusing =(
[13:57:45] <zeeshan|2> renesis: the 7i77
[13:57:49] <zeeshan|2> takes a differential or single ended input
[13:57:54] <zeeshan|2> i like differential
[13:57:57] <zeeshan|2> especially for 5v signals
[13:58:01] <renesis> weve been over this
[13:58:09] <zeeshan|2> dont have to worry about noise as much
[13:58:12] <zeeshan|2> we have?
[13:58:22] <renesis> well you prob had me on ignore
[13:58:27] <zeeshan|2> i read the logs
[13:58:31] <renesis> in recent additions to the convo
[13:58:34] <zeeshan|2> thanks to PSHA
[13:58:59] <zeeshan|2> like i said, i havent found a package where the led is powered by same vcc pin
[13:59:04] <zeeshan|2> (so built in resistor)
[13:59:13] <zeeshan|2> and differential output
[13:59:26] <zeeshan|2> and i know you said you can add a resistor and throw an opamp
[13:59:33] <zeeshan|2> but i dont want to do that, i want a ready to go package
[13:59:35] <zeeshan|2> thats plug and play
[13:59:44] <zeeshan|2> im already doing a lot of custom stuff
[13:59:51] <zeeshan|2> i dont need more headaches :P
[14:00:06] <renesis> yeah when a resistor for an LED is too much work, i dont know what you want
[14:00:09] <renesis> honestly
[14:00:15] <zeeshan|2> its not too much work
[14:00:15] <zeeshan|2> its lame
[14:00:19] <zeeshan|2> i'd have to wire it in line
[14:00:23] <zeeshan|2> worry about it breaking off
[14:00:31] <zeeshan|2> or have it stick out of the 7i77 pin pad like a turd
[14:00:46] <zeeshan|2> it's not as robust as being on a circuit board
[14:00:52] <zeeshan|2> encased in a housing
[14:01:03] <renesis> could be more robust in a lot of situations
[14:01:11] <zeeshan|2> just not in my setup
[14:01:16] <renesis> versus a single resistor, lots more to fail on a PCB
[14:01:41] <zeeshan|2> and plus it's one extra wire
[14:01:42] <zeeshan|2> running
[14:01:43] <zeeshan|2> which is lame
[14:01:46] <zeeshan|2> another failure point
[14:02:00] <zeeshan|2> if it was vcc -> optical encoder board -> trace -> led
[14:02:06] <zeeshan|2> that's be a lot cleaner too
[14:03:14] <renesis> if you trust chinese designed PCB more than your ability to reliable put a resistor in series with a wire, dunno man
[14:03:23] <zeeshan|2> who says im running chinese pcb
[14:03:30] <zeeshan|2> i want to run a name brand
[14:03:33] <renesis> thats what the previous links were
[14:03:36] <zeeshan|2> like omron or honeywell
[14:03:43] <renesis> do they make what you want
[14:03:49] <zeeshan|2> im sure they do
[14:03:50] <zeeshan|2> i just cant find it
[14:03:55] <zeeshan|2> thats why i was asking in here
[14:03:59] <Rab> renesis, I have an identical nut on the Y axis, visible here: http://reboots.g-cipher.net/ghettocnc/parts01.jpg
[14:04:05] <zeeshan|2> cause i know people have run their own spindle encoders at some point
[14:04:28] <Rab> Looks like nothing's missing from the photos...I'll have to compare it in person to figure out what's up.
[14:04:28] <renesis> rab: how are the two halves attached?
[14:04:29] <zeeshan|2> if my heidenhain glass scales output differntial output from the optical encoders
[14:04:34] <zeeshan|2> im sure others do as well!
[14:04:39] <Rab> renesis, no idea. The machine lives at my friend's house.
[14:05:18] <renesis> im guessing rolled pin or set screw
[14:05:47] <renesis> or something in the mount that fits in a slot but that seems weird to assemble
[14:06:29] <renesis> zeeshan|2: thats not just an encoder, though
[14:06:59] <zeeshan|2> ren at this point i'd even take a single ended output
[14:07:04] <zeeshan|2> with / internal supply for led
[14:07:08] <renesis> its a non issue to turn single ended output into diff output
[14:07:28] <renesis> i dunno why youre tripping over a single resistor
[14:07:38] <zeeshan|2> extra wire
[14:07:42] <renesis> eh?
[14:07:42] <zeeshan|2> more failure point
[14:07:46] <renesis> the part you showed had wires
[14:07:57] <renesis> you simply attach one with a series resistor
[14:08:13] <renesis> some heatshrink and glue and its clean as fuck, prob as reliable as the wire itself
[14:08:32] <zeeshan|2> that hasn't been the case when i did it for an alternator
[14:08:34] <renesis> and im guessing a lot less hack than some of the other shit in your system
[14:08:38] <zeeshan|2> i used hard type heatshrink too
[14:08:42] <renesis> well thats because you did it
[14:08:48] <zeeshan|2> uh ok
[14:08:49] <renesis> dont do it like you do it, do it like a pro
[14:08:55] <zeeshan|2> youre a moron
[14:08:57] <zeeshan|2> just shut the fuck up
[14:09:04] <renesis> \o/
[14:10:01] <zeeshan|2> i dont know why i put you off ignore
[14:10:10] <Rab> You guys must be long-lost brothers.
[14:10:13] <renesis> im a moron but i can put a resistor in series with a wire reliably and have it look clean
[14:10:14] <zeeshan|2> i guess mainly because when others are talking it seems like trheyre talking to themselves
[14:10:20] <zeeshan|2> renesis: you havent even worked on a car
[14:10:21] <zeeshan|2> in your entire life
[14:10:24] <zeeshan|2> give me a break
[14:10:25] <renesis> sure
[14:10:29] <zeeshan|2> your little dinky cnc machine doesnt count
[14:10:47] <jdh> I think someone needs a nap.
[14:10:54] <renesis> after using butt terminals once, im a fan of solder splices and heatshrink for life
[14:11:10] <zeeshan|2> yea its great when the resistor pin pulls out
[14:11:11] <_methods> hehe
[14:11:13] <zeeshan|2> cause of vibration
[14:11:16] <renesis> eh?
[14:11:17] <_methods> gettin hectic up in here
[14:11:21] <renesis> how the fuck that gonna happen
[14:11:23] <zeeshan|2> REALLY reliable
[14:11:30] <renesis> with railroad splices and covered in glue and heatshrink
[14:11:34] <Rab> zeeshan|2, I think optical encoders are another failure point anyway unless they're sealed somehow.
[14:11:35] <renesis> again zee, i said do it like a pro
[14:11:37] <zeeshan|2> this is why you see factory cars putting resistors in line in their wires!!!
[14:11:38] <renesis> not a mechanic
[14:11:56] <zeeshan|2> i have YET to find a resistor inline with a wire on a cnc controller
[14:12:00] <renesis> zeeshan|2: its not good DFM
[14:12:00] <zeeshan|2> if there is ever a resistor
[14:12:02] <zeeshan|2> it's bolted down
[14:12:09] <renesis> if youre trying to mass produce
[14:12:14] <zeeshan|2> its never inline in the wire.
[14:12:15] <renesis> your thing by definition is a prototype
[14:12:58] <zeeshan|2> and why the heck should i throw a resistor inline to begin with
[14:13:01] <renesis> prototypes are not the same as mass production on the level of efficiency as cars
[14:13:02] <zeeshan|2> when i should be able to buy a circuit baord
[14:13:05] <zeeshan|2> that already has it in there?
[14:13:06] <renesis> they dont even make CNC like that
[14:13:10] <zeeshan|2> my question wasn't about how to do it
[14:13:15] <zeeshan|2> it was about finding the right board
[14:13:18] <zeeshan|2> with everything built in.
[14:13:18] <renesis> because you have yet to find the PCB that does it
[14:13:23] <renesis> with diff output
[14:13:26] <zeeshan|2> if you dont know the answer to that question
[14:13:28] <renesis> and an inline splice is easy
[14:13:31] <zeeshan|2> stop suggesting irrelvant stuff.
[14:13:33] <renesis> and reliable if you know what youre doing
[14:13:40] <renesis> i cant even believe were having this convo
[14:14:06] <renesis> and zee im not going to go shopping for you
[14:14:12] <zeeshan|2> Rab: it will be sealed
[14:14:16] <renesis> nor am i an internet sensor catalog
[14:14:19] <zeeshan|2> theres a metal cover for that whole area
[14:14:25] <zeeshan|2> renesis: then be quiet
[14:14:28] <renesis> i think he means the optical path itself
[14:14:33] <zeeshan|2> the question was for a knowledageble person
[14:14:36] <zeeshan|2> who has used one before.
[14:14:42] <renesis> thats why my bug resistance comment was about
[14:14:51] <renesis> literal resistance to bugs crawling into the optical path
[14:15:02] <renesis> you think i havent done encoders before?
[14:15:19] <zeeshan|2> clearly not one with builtin diff output and supply for emitter
[14:15:22] <renesis> connecting an LED is pretty basic stuff zee
[14:15:30] <zeeshan|2> don't you think i know that?
[14:15:32] <renesis> well its just not an issue for me
[14:15:40] <renesis> and your issue is a shopping one
[14:15:44] <zeeshan|2> what do you not get about not wanting to have a failure point
[14:15:47] <zeeshan|2> by putting a resistor inline?
[14:15:53] <renesis> theres always failure points
[14:16:07] <zeeshan|2> well a resistor inline is a big one
[14:16:09] <zeeshan|2> in my opinion.
[14:16:12] <Computer_Barf> does anyone here have a machine with a power drawbar?
[14:16:14] <jdh> heh, seriously?
[14:16:15] <renesis> if youre doing it wrong
[14:16:25] <jdh> a resistor is a big failure point?
[14:16:31] <zeeshan|2> http://nootropicdesign.com/projectlab/wp-content/uploads/2010/03/inLineResistor.jpg
[14:16:32] <jdh> for a non-moving wire?
[14:16:43] <renesis> jdh: yes because im a moran!
[14:16:43] <zeeshan|2> jdh you're right its not moving.
[14:16:47] <zeeshan|2> but when you're assembling stuff
[14:16:51] <zeeshan|2> and you're moving wires around
[14:16:51] <renesis> omg
[14:16:56] <renesis> then test after assembly
[14:16:57] <zeeshan|2> it's very easy to rip thjat shit off
[14:16:57] <renesis> again
[14:17:06] <zeeshan|2> and then you hhave to take it all apart
[14:17:07] <jdh> moveon
[14:17:08] <renesis> if youre doing it right, you wont break it from handling during assembly
[14:17:09] <zeeshan|2> and resolder
[14:17:11] <zeeshan|2> waste of time
[14:17:14] <renesis> eh
[14:17:17] <renesis> why resolder?
[14:17:17] <zeeshan|2> if it was on a circuit board you'd never have that problem
[14:17:21] <Computer_Barf> I recently got a g0704 and plan to eventually install a power draw bar but at this point I am just trying to understand the mechanics of it.
[14:17:23] <renesis> if its inline, its part of the wire
[14:17:26] <jdh> you waste 7.6x as many times with this conversation
[14:17:32] <Rab> zeeshan|2, fix the resistor in place. JB Weld it to the side of the encoder.
[14:17:32] <renesis> ikr
[14:17:43] <_methods> we're all dumber for this
[14:17:44] <renesis> hot glue if you want a servicable resistor, heh
[14:17:56] <renesis> but i mean, its a resistor
[14:17:59] <zeeshan|2> how about you all stop arguing with me
[14:18:01] <jdh> Barf: hoss style pnuematic?
[14:18:02] <_methods> i am laughing pretty good though
[14:18:04] <zeeshan|2> to put a resistor in line?
[14:18:11] <zeeshan|2> i don't want to DO THAT
[14:18:17] <renesis> how about you stop making ridiculous statements and calling me a moran!
[14:18:19] <jdh> so don't, move on.
[14:18:20] <zeeshan|2> I WANT it on a PCB
[14:18:23] <zeeshan|2> so fuck off renesis
[14:18:27] <renesis> so find the PCB!
[14:18:32] <Computer_Barf> jdh: yes , something similar , I can get a link
[14:18:41] <zeeshan|2> you are a moron, cause you just don't get the specifications im looking for
[14:18:41] <renesis> and stop calling me a moran because i dont know a working p/n offhand
[14:18:53] <renesis> no i just think your search is silly
[14:18:53] <jdh> it's moron, moran.
[14:19:08] <zeeshan|2> if my search was silly
[14:19:08] <renesis> moran is the punchline of a joke i have long since forgotten
[14:19:15] <zeeshan|2> tehre wouldn't be a board like the c3 index pulse card.
[14:19:24] <zeeshan|2> i want something exactly like that
[14:19:27] <zeeshan|2> just for 3 encoders.
[14:19:36] <zeeshan|2> or 3 optical sensors i mean
[14:19:41] <renesis> well look, you wanted an encoder with diff out
[14:19:45] <renesis> i told you how
[14:19:50] <zeeshan|2> i already know how.
[14:19:53] <renesis> other solution require just shopping
[14:19:55] <zeeshan|2> you don't need to tell me.
[14:19:55] <Computer_Barf> http://www.cnczone.com/forums/benchtop-machines/222190-high-tension-power-drawbar-using-3in-cylinder.html
[14:19:57] <renesis> so go shop if you cant hack
[14:20:06] <renesis> dont be calling people morons because they wont go shopping for you
[14:20:08] <zeeshan|2> that's what pissing me off
[14:20:10] <Rab> zeeshan|2, uhhh
[14:20:13] <renesis> and because they offer you good solutions
[14:20:14] <zeeshan|2> you assume i dont know how to put in a led
[14:20:15] <Rab> http://www.cnc4pc.com/Store/osc/product_info.php?cPath=25&products_id=129
[14:20:28] <zeeshan|2> yes rab
[14:20:35] <zeeshan|2> i want that but x3 in 1 pcb
[14:20:47] <renesis> that looks like series resistors or sloppy soldering
[14:20:49] <Rab> Look at the encoder which works with the C3 Index Pulse Card: http://cnc4pc.com/images/C3_3.jpg
[14:20:51] <jdh> barf: looks cool.
[14:20:56] <Rab> Pretty sure that is sum inline resistor.
[14:21:01] <jdh> Z: so make a pcb that has everything on it
[14:21:07] <renesis> or some nasty, nasty soldering
[14:21:34] <zeeshan|2> rab nah
[14:21:35] <renesis> rab: the cool part about that is they can swap in an encoder with internal resistance without reving PCBA
[14:21:37] <zeeshan|2> its just a crappy soldering job
[14:21:48] <Computer_Barf> this is the design that caught my eye. as my machine is, I have to use rotational force to thread the collet to the drawbar using a tool to hold the spindle and then move the top of the drawbar with a wrench. Ive read that with power draw bars some sort of gripper is employed, but I am looking for the specifics of what i would be installing
[14:21:51] <renesis> and that makes it a good thing?
[14:22:02] <zeeshan|2> who said it makes a good thing?
[14:22:20] <_methods> do you know why you want a power draw bar?
[14:22:32] <renesis> http://nootropicdesign.com/projectlab/wp-content/uploads/2010/03/inLineResistor.jpg
[14:22:36] <renesis> also thats not pro
[14:22:44] <Computer_Barf> well, i want to change the tools quickly, and I eventually want to have an auto tool changer
[14:22:45] <jdh> Barf: pressure is applied with belleville washers. the pnuematics compress teh washer stack to release the collet
[14:22:47] <zeeshan|2> http://people.ece.cornell.edu/land/courses/ece4760/FinalProjects/s2003/es89kh98/es89kh98/optical-shaft-encoders-s1s2.jpg
[14:22:48] <renesis> too much lead, not enough glue, no heatshrink
[14:22:51] <zeeshan|2> i trhink im just gonna buy something like this
[14:22:55] <zeeshan|2> and stick it to the end of the pulley
[14:23:08] <renesis> and use another one for indexing?
[14:23:16] <zeeshan|2> "something like this"
[14:23:18] <zeeshan|2> its not exact.
[14:23:21] <renesis> k
[14:24:36] <renesis> also, you could use a chassis mount resistor
[14:24:44] <zeeshan|2> sigh
[14:24:47] <zeeshan|2> what do you not get about
[14:24:52] <zeeshan|2> resistor on pcb
[14:25:07] <zeeshan|2> i know how to put resistors inline in a wire.
[14:25:11] <zeeshan|2> i don't want to do it
[14:25:13] <zeeshan|2> for the final time.
[14:25:28] <renesis> okay well show us something that works at least
[14:25:34] <Computer_Barf> jhd: the belleville washers, those are like springs as I understand it. I just havn't seen the actual mechanism by which the collet is released and I am trying to identify it in the BOM, i could screenshot the BOM if that helps. Am i correct in asssuming that some new drawbar is installed that moves up and down and manipulates some sort of gripper?
[14:26:18] * Loetmichel is massaging his temples... i need a few of these: http://www.cyrom.org/palbum/main.php?g2_itemId=13391 (RIGHT!)
[14:26:28] <jdh> same drawbar style. It just uses the bellevilles to provide force instead of screwing it in tight.
[14:26:41] <_methods> hahah
[14:26:47] <Loetmichel> i think i should rememner to drink more over the day.. a cup of coffe in the morning isnt enough fluids at all :-(
[14:27:11] <jdh> Loetmichel: what does the warning say?
[14:27:15] <_methods> you guys have CVS in Germany?
[14:27:44] <Loetmichel> bad headache right now, radiates into the teeth as well
[14:27:52] <Loetmichel> cvs?
[14:28:29] <Loetmichel> the waring on the cigarretes says "smoking cah n lead to circulation problems and impotence"
[14:28:47] <_methods> those aspirin are from a
[14:28:52] <_methods> CVS pharmacy
[14:29:53] <jdh> https://weblogs.asp.net/scottgu/announcing-open-source-of-net-core-framework-net-core-distribution-for-linux-osx-and-free-visual-studio-community-edition
[14:30:10] <Rab> Loetmichel, sounds like a recipe for kidney stones.
[14:30:16] <Computer_Barf> jdh: I think there is still something that is eluding me as to how it works. I don't understand how the tool drops out without the drawbar rotating enough for it to unthread
[14:30:22] <Loetmichel> _methods: my wife brought that container from philly
[14:30:42] <Loetmichel> in germany a stip of 10 aspirin is about 10 eur
[14:30:54] <Computer_Barf> DAMN
[14:31:02] <jdh> Barf: the drawbar holds a 0.750" collet. The tool holders have 0.750" straight shafts that fit in the collet. The drawbar releases the collet enough to release teh tool holder
[14:31:12] <Computer_Barf> 10 euros for 10 asprin?
[14:31:24] <Computer_Barf> i have to be reading that wrogn
[14:31:33] <_methods> hahah they added a 3d printer to the start up screen of solidworks 2015
[14:31:35] <_methods> assholes
[14:32:35] <CaptHindsight> http://blogs.solidworks.com/tech/2014/09/solidworks-2015-sneak-peek-3d-printing-support.html
[14:32:39] <Loetmichel> Computer_Barf: you havent
[14:33:14] <Computer_Barf> Loetmichel: sounds like an arbitrage oppertunity!
[14:33:40] <Computer_Barf> time to get into the asprin smuggling buisness
[14:33:45] <Loetmichel> hrhr
[14:33:47] <_methods> well that would explain the turd squeezer on the load up screen
[14:34:04] <Computer_Barf> oh those underground asprin labs..
[14:34:25] <jdh> my daughter spent 8.2 hours monday waiting for a 3d thing to print for her design class
[14:34:45] <Computer_Barf> how is this possible that the germans of all people can't cook up a plentiful quantity of asprin
[14:36:35] <_methods> you know wtf solidworks forum is on by default but not toolbox
[14:36:37] <Computer_Barf> ten euros for ten asprin. Thats positively civilizing! What the heck is causing prices like that.
[14:36:50] <Computer_Barf> woops
[14:37:01] <zeeshan|2> renesis: the very first link i posted
[14:37:02] <Computer_Barf> positively decivilizing i ment
[14:37:02] <zeeshan|2> http://www.digikey.com/product-detail/en/OPB950Z/365-1787-ND/1637569
[14:37:10] <zeeshan|2> has the emitter being powered.
[14:37:11] <zeeshan|2> lol
[14:38:01] <zeeshan|2> and its dual channel..
[14:38:05] <LeelooMinai> Are there some most current instructions on how to install 7i76 on linux? I have lunuxcnc and everything set up.
[14:38:15] <LeelooMinai> E, I mean 6i25
[14:38:33] <zeeshan|2> problem solved
[14:38:59] <LeelooMinai> I downloaded 5i25 zip and I can see lunux configuration files and some binaries, but where are the instructions?
[14:40:18] <Computer_Barf> jhd: I think i understand now. the upward pressure on the collet diameter is causing it to tighten? So downward pressure from the piston overcoming the spring washers causes the rod to lower, releasing the collet pressure, causing something its holding to come out. This would explain the need for tormach style tool holders , as they are all probably fitting into the .75" collet that engages/disengages
[14:40:31] <jdh> right
[14:40:43] <Computer_Barf> comprehension success!
[14:40:57] <Computer_Barf> high fives
[14:41:32] <jdh> LeelooMinai: afaik, there is nothing in linux itself you need to do. Plug the card in.
[14:41:59] <LeelooMinai> Hmm, no? SO what is that 5i25 zip for - it has some configs inside...
[14:42:19] <Computer_Barf> LeelooMinai: unfortunantly I do not know the answer to your question, but I do plan on getting one of those ethernet controlled 7i76 boards
[14:42:58] <Computer_Barf> I would think the configuration files might go in ~/a_hidden_folder
[14:43:03] <LeelooMinai> http://i.imgur.com/daFFQvf.png <- I think I need to install some drivers first...
[14:43:31] <LeelooMinai> Cannot find any instructions on the procedure weirdly
[14:44:35] <zeeshan|2> http://linuxcnc.org/docs/html/drivers/hostmot2.html
[14:44:36] <jdh> that's linuxcnc, not linux.
[14:44:53] <zeeshan|2> Depending on how you installed LinuxCNC you may have to open the Synaptic Package Manager from the System menu and install the package for your Mesa card. The quickest way to find them is to do a search for hostmot2 in the Synaptic Package Manager. Mark the firmware for installation, then apply.
[14:44:56] <LeelooMinai> Yes, but it wants the drivers
[14:45:19] <zeeshan|2> LeelooMinai: im jealous
[14:45:21] <LeelooMinai> O, ok, will look with synaptuc
[14:45:22] <zeeshan|2> you already got your mesa wired up
[14:45:23] <zeeshan|2> ;[
[14:45:33] <jdh> that's because she used inline resistors
[14:45:41] <_methods> hahahahah
[14:45:41] <zeeshan|2> jdh at least my lathe is done
[14:45:43] <zeeshan|2> :-)
[14:45:55] <jdh> cool. it's probably all ice upthere too.
[14:45:55] <zeeshan|2> whats the status on yours
[14:46:00] <jdh> I went diving this w/e
[14:46:00] <zeeshan|2> or are you still diving?
[14:46:03] <LeelooMinai> zeeshan|2: Yes, I have the box wired up
[14:46:40] <Computer_Barf> I do wonder if it is possible to use Mach with a 7i76? I plan on using linuxcnc primarily but was wondering.
[14:47:02] <jdh> wrong channel.
[14:47:17] <Computer_Barf> :(
[14:47:57] <Computer_Barf> im not trying to offend linuxcnc , I perfer linux in all cases
[14:48:05] <jdh> Z: http://tinyurl.com/k9rk8br
[14:48:20] <zeeshan> found another shark tooth?
[14:48:21] <LeelooMinai> Hmm, I will take a photo of my box
[14:48:46] <LeelooMinai> This way, if I will just put in on fire, I will have something to reminiscent
[14:48:56] <zeeshan> rofl
[14:49:18] <Computer_Barf> is there a channel for mach?
[14:49:30] <zeeshan> yes Computer_Barf
[14:49:35] <zeeshan> please check out #garbage
[14:49:39] <Computer_Barf> lol
[14:49:49] <zeeshan> :D
[14:50:26] <Computer_Barf> come on guys, you know i love you.
[14:50:32] <Rab> zeeshan, that encoder isn't differential output.
[14:50:42] <zeeshan> rab yes
[14:50:59] <zeeshan> it also has no mounting holes
[14:51:15] <Rab> zeeshan, it's also TTL output...not sure if that's what you want.
[14:51:18] <jdh> it's ok, you can make it work with differential with a pair of resistors
[14:51:27] <LeelooMinai> Here it is, ready for commands, I guess: https://www.flickr.com/photos/100017731@N03/15775299025/
[14:51:28] <zeeshan> jdh
[14:51:40] <zeeshan> do you want me to put you on my lathe
[14:51:47] <zeeshan> and put an o-ring groove in you
[14:52:48] <LeelooMinai> Now I need to get the mesa driver working
[14:52:59] <zeeshan> LeelooMinai: just install hostmod2
[14:53:01] <Rab> TTL output is what you want to simulate a switch closing to ground, though.
[14:53:23] <zeeshan> rab i guess i need logic output
[14:53:30] <LeelooMinai> Right
[14:53:57] <zeeshan> what are those brass fittings
[14:54:15] <Rab> zeeshan, do you want short to ground or +5V on your sense input when the sensor is interrupted?
[14:54:37] <LeelooMinai> New MacGyver technology for shielding and strain relief - directly from plumbing department
[14:55:21] <zeeshan> rab this is all i kinow:
[14:55:23] <zeeshan> "The 7I77 provides six channels of quadrature encode r interface with index. Encoder inputs can be programmed for differential or single ended encoders. The encoder interface also provides short circuit protected 5V power to t he encoders. When used with single ended encoders, the ENCA+, ENCB+ and IDX+ signals a re wired to the encoder and the ENCA-,ENCB-, and IDX- terminal left unconnected."
[14:55:52] <zeeshan> so im assuming it'll need to go to 5v.
[14:56:17] <Computer_Barf> what is the real name for the mach channel other than #garbage
[14:56:30] <_methods> LeelooMinai: are you happy with that oscope?
[14:56:42] <LeelooMinai> _methods: The Rigol?
[14:56:45] <_methods> yeah'
[14:56:57] <_methods> i'm thinkin about gettin one of them
[14:57:02] <Computer_Barf> searching google for mach 3 gets all sorts of shaving stuff
[14:57:22] <zeeshan> rab im going to worry about the encoder some other day
[14:57:31] <zeeshan> i can always add it on later
[14:57:38] <_methods> LeelooMinai: i like your helping hand bar
[14:57:53] <zeeshan> when i have more time to figure out electronics
[14:57:56] <LeelooMinai> Well, I bought it 2-3 years ago - I firmare-hacked it to 100MHz and it's good value, yes, no problems with it. But if you are looking to buy something now, I recommend the new Rigol Z series - it is about $400 and has 4 channels, bigger display, memory and nicer features.
[14:58:09] <_methods> k
[14:58:15] <Rab> zeeshan, your servos don't come with encoders?
[14:58:23] <Rab> I thought you were talking about optical limit switches.
[14:58:24] <zeeshan> rab this is for my spindle
[14:58:28] <Rab> Hmm, OK.
[14:58:47] <LeelooMinai> _methods: Cannot go wrong with this one: http://www.rigolna.com/products/digital-oscilloscopes/ds1000Z/ds1054z/
[14:59:04] <_methods> k
[14:59:28] <_methods> well i can't this month i just spent $500 on a lathe so going to have to wait now lol
[14:59:43] <_methods> yeah that 1054z is nice
[14:59:49] <Rab> zeeshan, today's project (if I find time) is trying to wake up a Techno-Isel servo controller that I found completely disassembled. And one servo.
[14:59:59] <LeelooMinai> Damn, cannot find 6i25 in the update centre: http://i.imgur.com/EoHMkHm.png
[15:00:21] <LeelooMinai> I do not see 5i25 either:/
[15:00:51] <zeeshan> rab you always score nice electronics :p
[15:01:09] <Rab> zeeshan, yah, this was part of the FleshCut haul.
[15:01:16] <_methods> oh wow they added flattening multifaced surfaces
[15:01:18] <zeeshan> nice
[15:01:28] <_methods> of course after i developed all the flats for that boat hull
[15:01:46] <renesis> ha, im a moron because zee didnt realize the first link he posted was what he wanted
[15:02:09] <zeeshan> has no mounting holes though
[15:02:47] <Rab> I got a bunch of single-start 10tpi acme rod too, pretty slow for stepper use but I think with a servo it could provide acceptable speed.
[15:03:37] <zeeshan> what are you going to build out ofit
[15:05:03] <Rab> I used the rod on my Z-axis, and it's s-l-o-w...resolution is 0.00015 which is pretty ridiculous. http://reboots.g-cipher.net/ghettocnc/zmounted.jpg
[15:05:28] <Rab> Fine for Z, but X and Y need to be faster.
[15:05:41] <Rab> zeeshan, another CNC router, of course. ;)
[15:05:57] <zeeshan> haha
[15:06:00] <Rab> Probably geared toward light, high-resolution engraving.
[15:07:28] <_methods> OMG best solidworks fix ever
[15:07:39] <zeeshan> ??
[15:07:53] <_methods> controlling linear patterns with reference geometry
[15:08:06] <zeeshan> like
[15:08:12] <zeeshan> putting a bunch circles
[15:08:13] <_methods> pick 2 faces and it will evenly space features
[15:08:16] <zeeshan> along a spline?
[15:08:19] <_methods> or 2 edges
[15:08:20] <_methods> or whatver
[15:08:40] <_methods> you tell it the spacing and # of instances
[15:08:50] <_methods> and it will place them between the 2 features
[15:08:55] <zeeshan> oo thats nice
[15:08:57] <_methods> no more calculating spacing
[15:08:58] <zeeshan> this is in 2014?
[15:09:01] <_methods> 2015
[15:09:10] <zeeshan> i need to update the student version
[15:09:15] <zeeshan> im @ 2014
[15:09:28] <_methods> omg i'm a so sos happy
[15:11:13] <_methods> so irritating when you're tryin to do a linear pattern and you get the spacing off
[15:11:25] <_methods> now i don't have to think at all lol
[15:12:09] <zeeshan> hehe
[15:12:33] <_methods> they spent quite a bit of time on weldments it looks like
[15:12:39] <_methods> lots of updated features there
[15:12:48] <_methods> and routing
[15:18:24] <Computer_Barf> zeeshan: plz. can you tell me a chat room for mach?
[15:26:23] <JT-Shop> you have to pay for mark support
[15:27:59] <renesis> you need to paypal to enter the chan or something?
[15:33:16] <JT-Shop> you can go to the zone and ask about mack
[15:41:10] <mozmck> IoT: I'm about tired of this new hype already...
[15:55:25] <skunkworks_> logger[psha]:
[15:55:25] <logger[psha]> skunkworks_: Log stored at http://psha.org.ru/irc/%23linuxcnc/2014-11-12.html
[16:10:48] <mevon> hello everyone I cant remember how to convert PCB drill .cnc files to .ngc gcodes for my linuxcnc, can anyone help me on this topic?
[16:11:37] <mevon> im using gEDA pcb to generate gerbers
[16:18:58] <mevon> think i was using pcb2gcode
[16:25:32] <renesis> mevon: http://linuxcnc.org/docs/html/gcode/gcode.html#sec:G81-Drilling-Cycle
[16:26:14] <renesis> you need to put a g81 line at the beginning of a set of XY coordinates for each drill size
[16:26:57] <renesis> and depending on your machine, maybe tool change and spindle speed codes
[16:28:18] <Deejay> gn8
[16:43:29] <Tom_L> http://earthquake.usgs.gov/earthquakes/eventpage/usc000swru#summary
[16:43:31] <Tom_L> felt that one
[16:47:03] <LeelooMinai> I am trying to configure 6i25/7i76 with pncconf - man, I wonder if it's me, or this GUI is undecipherable:/
[16:47:23] <Tom_itx> maybe you'd be better off doing it manually
[16:47:55] <LeelooMinai> I was hoping it would generate something sane I could edit
[16:49:29] <LeelooMinai> Did not think this would be such a bad experience:)
[16:49:40] <Tom_itx> well it shouldn't be
[16:49:47] <Tom_itx> plenty of folks here can help
[16:51:14] <LeelooMinai> Ok, so I got so far: http://i.imgur.com/yAZF58f.png
[16:51:32] <LeelooMinai> Now, I cannot modify the number of pwm generators...
[16:51:51] <LeelooMinai> Which seems to be needed for stepper motors
[16:52:06] <Tom_itx> stepgen
[16:52:15] <Tom_itx> for steppers
[16:52:22] <LeelooMinai> Right, sorry, those - but same thing
[16:52:26] <Tom_itx> pwmgen for servo
[16:52:54] <LeelooMinai> I mean it's stuck at 0...
[16:53:18] <LeelooMinai> The arrows are grayed
[16:53:41] <Tom_L> pcw_home ^^
[16:54:37] <LeelooMinai> I hope noone who wrote this thing is in this channel:)
[16:55:26] <Tom_itx> well they likely are
[16:56:15] <LeelooMinai> Hiding?
[16:56:22] <Tom_itx> or working
[16:56:37] <Tom_itx> i don't use pncconf
[16:56:55] <LeelooMinai> What do you use?
[16:57:17] <Tom_L> hand written
[16:57:29] <LeelooMinai> What? Lunuxcnc alternative?
[16:57:41] <Tom_L> no i use lcnc
[16:57:45] <Tom_L> with steppers
[16:58:13] <Tom_L> i don't have a 5i25 or 6i25 though
[16:58:24] <LeelooMinai> Ok, so you mean you edit configuration files by hand?
[16:58:27] <Tom_itx> yes
[16:59:04] <LeelooMinai> Well, I had trouble finding info to even get this far, I can imagine how hard it will be to find details on how to edit those files.
[17:08:34] <JT-Shop> LeelooMinai, support for the pncconf is on the forum
[17:09:48] <LeelooMinai> Yes, I got http://www.gnipsel.com/linuxcnc/configs/pncconf-7i76.html instructions from there
[17:10:09] <JT-Shop> yikes that's my page
[17:10:18] <renesis> ha
[17:10:39] <LeelooMinai> JT-Shop: To make you feel better, I got to number 15:)
[17:10:48] <JT-Shop> I don't see 6i25 but IIRC the 5i25 is the same card
[17:11:21] <LeelooMinai> Yes, right, I am just using 5i25 - problem is, I cannot change step generators from 0 to enything else
[17:12:15] <JT-Shop> did you do step 13?
[17:12:45] <LeelooMinai> I believe so: http://i.imgur.com/neKg0CJ.png
[17:12:55] <JT-Shop> seems to work for me... I mean you can select stepgens for each axis on tab 3
[17:13:02] <LeelooMinai> The firmware is for 7i76
[17:13:11] <LeelooMinai> I got it from the mesa zip for 5i25
[17:13:58] <JT-Shop> I don't see the smart serial tab
[17:14:57] <LeelooMinai> I press Accept component Changes and, well, nothing changes
[17:16:22] <JT-Shop> I don't even have the firmware option you used on this computer running 2.6.4
[17:16:46] <LeelooMinai> Yes, it was not there - I had to download it from the mesa zip
[17:16:53] <JT-Shop> I also see you skipped another step
[17:17:06] <LeelooMinai> What step?
[17:18:59] <JT-Shop> it is best to take this to the forum so Chris can help you
[17:22:55] <LeelooMinai> I will try another configuration from that file - maybe there's something wrong with this particular one.
[17:28:44] <LeelooMinai> Hmm, I tried one for two 7i76 cards and it has 10 StepGen's in teh xml file, which is more like it... The other one does not even define that entry - pretty messed up
[17:30:17] <JT-Shop> you should fix it and submit a patch
[17:30:46] <LeelooMinai> To fix it I would need to study the format for days probably:)
[17:31:17] <LeelooMinai> SO I don't just copy/paste something without being sure it's sane
[17:33:46] <LeelooMinai> Also, I think those configs are made by mesa guy(s) as they seem to be hostmot2 specific - the xml is <hostmot2>...</hostmot2> so it's probably the hardware layer (?)
[17:35:36] <JT-Shop> hostmot2 is the mesa driver
[17:35:39] <LeelooMinai> "7I76_7I74 is a configuration for one 7I76 five axis step/dir daughtercards on P3 and one 7I74 eight channel RS-422 interface on P2. The 7I74 is configured with eight Smart Serial channels."
[17:35:55] * JT-Shop wonders how many days people have worked on LinuxCNC?
[17:35:59] <LeelooMinai> This is from the docs. As I read it, I should get the step channels, so something is wrong.
[17:36:19] <JT-Shop> support for pncconf is on the forum
[17:36:39] <LeelooMinai> Ok, but as I wrote - this seems to be mesa problem.
[17:36:59] <LeelooMinai> It does not expose hardware properly with those configs.
[17:37:16] <LeelooMinai> (and the configs are from their site)
[17:42:12] <LeelooMinai> Hmm there's also 5i25_7i76x2.xml and 5i25_7i76x2r.xml ... how am I supposed to guess what is the difference? :)
[17:43:33] <JT-Shop> you ask Chris on the forum
[17:43:58] <JT-Shop> or PCW if he is around here
[17:44:08] <LeelooMinai> Right
[17:53:20] <PCW> If I try pncconf it seems to do about the right stuff (the defaults seem right for a 5i25/7I76x2)
[17:55:15] <LeelooMinai> PCW, I used this one first: http://i.imgur.com/H4bdAVy.png
[17:55:23] <LeelooMinai> There is no step gens at all in it
[17:55:54] <PCW> Um why are you using that?
[17:56:16] <LeelooMinai> It's for 7i76 and some RS card... why not?
[17:56:34] <LeelooMinai> I don't have two 7i76
[17:57:03] <PCW> use the internal setup 7i76x2 one 7I76 only
[17:57:37] <LeelooMinai> There are two files for that - one ands with r and the other not - what's the difference?
[17:57:43] <LeelooMinai> ends*
[17:58:11] <PCW> dont use any files
[17:58:36] <PCW> simply run pncconf with its defaults
[17:59:06] <LeelooMinai> PCW: It did not even have 5i25 option - I had to download those files
[17:59:29] <PCW> you must have a very old version
[17:59:52] <LeelooMinai> Hmm...
[18:00:37] <LeelooMinai> When I was downloading it, it was the newest one - beta 1
[18:01:18] <LeelooMinai> Seems it's still the newest
[18:02:25] <JT-Shop> LeelooMinai, are you running LinuxCNC 2.6?
[18:02:37] <LeelooMinai> 2.5.3
[18:03:01] <PCW> If it does not shod internal 5i25 as a board default its quite old
[18:03:11] <PCW> s/shod/show/
[18:03:49] <LeelooMinai> Ok, I will try to chase newer one, thx
[18:05:08] <taiden> hey all. i'm thinking of running nema23 servos instead of stepper motors
[18:05:24] <taiden> i've never even looked into servos until now
[18:05:35] <taiden> and by now i mean in the last twenty seconds
[18:05:38] <JT-Shop> LeelooMinai, http://wiki.linuxcnc.org/cgi-bin/wiki.pl?UpdatingTo2.6
[18:06:00] <LeelooMinai> I have Linux 12.04
[18:06:13] <LeelooMinai> I mean Ubuntu
[18:06:16] <taiden> does linuxcnc excel with a servo motor kit such as this? http://www.automationtechnologiesinc.com/products-page/nema23-m-dc-servo-motor/3-axis-nema23-350ozin-60v20a-psu-g230x-gecko-driver
[18:07:31] <LeelooMinai> But thx, maybe I will be able to upgrade to it
[18:08:29] <JT-Shop> taiden, the 230 just takes step and direction inputs so no feedback to LinuxCNC
[18:10:52] <taiden> hmm. it's packaged with three external encoders
[18:11:10] <taiden> so the gecko wont take that data back to linuxcnc? :(
[18:11:15] <JT-Shop> no
[18:12:02] <taiden> http://www.automationtechnologiesinc.com/wp-content/uploads/downloads/2012/12/G320X-KIT-Nema-23.pdf
[18:12:10] <taiden> so what's the point of the encoder then?
[18:13:32] <JT-Shop> let me get the link to the 320
[18:13:33] <JT-Shop> http://www.geckodrive.com/geckodrive-brush-dc-drives.html
[18:14:06] <taiden> im cruising through the manual right now :)
[18:16:27] <taiden> how do the communications work between linuxcnc and a servo motor driver?
[18:16:36] <taiden> does it use step pulses like a stepper motor?
[18:31:03] <PCW> LinuxCNC can interface with step/dir, pwm/dir, analog +-10, and EtherCAT connected servo drives
[18:31:27] <PCW> (there may be some other ways I have forgotten)
[18:32:02] <renesis> ethercat sounds neat
[18:32:02] <taiden> it seems like the gecko is step/dir and the driver is responsible for keeping things aligned with the encoder
[18:34:31] <taiden> so how does teh math work for figuring out motor rpm with the gecko 320
[18:34:40] <PCW> to some extent almost all drives have some local feedback (typically linuxcnc runs velocity mode servo drives so the drive itself closes the velocity loop)
[18:34:43] <taiden> do we still use software stepping?
[18:35:19] <PCW> LInuxCNC can use software or hardware stepping
[18:35:40] <PCW> step generation would be a better word
[18:36:28] <taiden> eah
[18:36:29] <taiden> yeah
[18:36:47] <taiden> so i'm quite familiar with calculating motor rpm with stepper motors and drives
[18:36:58] <taiden> how is it done with servo motors?
[18:37:50] <PCW> Not quite sure what you mean
[18:38:00] <taiden> is it one step per encoder slice?
[18:38:22] <PCW> it might be...
[18:38:57] <PCW> fancier drives allow steps/rev to be programmable
[18:39:18] <taiden> OK it seems these encoders are variable
[18:39:36] <taiden> and by that i mean you can set with dip switches how many slices per rev
[18:39:44] <taiden> "16 dip switch programmable resolutions incremental output resolutions 48, 96, 100, 125, 192, 200, 250, 256, 384, 400, 500, 512, 800, 1000, 1024, 2048 - See more at: http://www.automationtechnologiesinc.com/products-page/nema23-m-dc-servo-motor/cui-amt102-v-kit-encoder#sthash.6dwWXBY0.dpuf"
[18:40:23] <PCW> usually the encoders (on high end drives) are not variable but the interface processor can scale the step/dir inputs
[18:40:49] <taiden> so if linuxcnc will happily produce 5000 pulse/sec and you have this setup to 500 "resolution" i suspect you'd end up with 10 revs/sec
[18:40:57] <taiden> does that seem reasonable?
[18:41:13] <PCW> yep
[18:41:33] <taiden> i can see why people like these things
[18:41:52] <taiden> i can't find a torque graph for this motor. any thoughts on small servo performance?
[18:42:11] <taiden> are these things linear like stepper motors until a certain rpm and then drop off?
[18:42:35] <taiden> trying to understand how it find optimal rpm range for full load
[18:42:53] <PCW> servo are typically used either where better than step motor performance is needed or for sizes larger than a few hundred watts
[18:43:22] <taiden> well i have a small machine but i'm trying to get really high feed rates for contouring
[18:43:30] <taiden> ball nose mill contouring
[18:43:34] <taiden> like 1000 ipm
[18:43:47] <PCW> typically servo motors have much flatter torque curves than step motors
[18:43:48] <taiden> i'm using 10mm lead ballscrews on the x and y and 5mm ballscrew on the z
[18:44:15] <LeelooMinai> Hmm, I would like to use one of the stepper channels on 7i76 for driver enable, like this: http://i.imgur.com/GvePApg.png
[18:44:44] <LeelooMinai> Cannot see how to do that though - there's some custom option in the drop-down, but it's unselectable
[18:45:23] <LeelooMinai> It's called "Custom Signals" - seems like maybe what I would want, but does not work
[18:45:31] <PCW> not sure pncconf can do it but you can add it to the hal file pncconf creates
[18:45:53] <LeelooMinai> A, I see, ok then, will live it out for now
[18:46:08] <LeelooMinai> I want only to generate some initial file to go from
[18:46:19] <LeelooMinai> leave*
[18:46:50] <taiden> this servo motor has peak no load rpm at 4200 rpm. is there a rule of thumb for what rpm range it produces max torque? like 70% of no load
[18:47:22] <LeelooMinai> Some can have almost the same torque for all speeds
[18:48:02] <taiden> at no load rpm it is producing just enough torque to overcome frictional losses :(
[18:48:21] <LeelooMinai> I saw one like this on gov sale yesterday - but it may be some unusual tech as it seemed to have strange construction using a disk with some copper parts in it and big magnets
[18:48:26] <PCW> actually it looks like you can get pncconf to do at least part of assigning the GPIO pins
[18:49:09] <PCW> (disable a step drive channel and then assign the newly freed pin on he P3 tab)
[18:49:31] <LeelooMinai> https://www.gcsurplus.ca/mn-eng.cfm?snc=wfsav&sc=ach-shop&vndsld=1&srchtype=&lci=&sr=1&str=1&ltnf=1&lcn=320505&lct=L&sf=ferm-clos
[18:49:58] <LeelooMinai> PCW: O, ok, will try that
[18:50:23] <LeelooMinai> I almost bid on it, but the postage would be $30, so I decided not to get crazy:)
[18:51:18] <PCW> Thats a so called "printed motor" with a PCB as the rotor
[18:51:58] <LeelooMinai> PCW, by "disabled" you mean what - I tried to set them from 5 to 3, but, hmm, I don't see a change
[18:52:30] <LeelooMinai> O, now I see - I had to accept
[18:52:41] <PCW> yeah iI just tried setting it to 4 and freed two GPIO pins
[18:53:11] <LeelooMinai> They seem to be generic though - not sure if softweare will use them as driver on/off
[18:53:24] <PCW> you can then set them to outputs and connect to some appropriate signal
[18:54:02] <LeelooMinai> BUt not in this wizzard?
[18:55:00] <LeelooMinai> Hmm, I don't even see anything for Diver off/on in menus
[18:55:11] <PCW> sure I just connected it to "Machine is enabled"
[18:58:19] <PCW> maybe axis.0.amp-enable-out is appropriate
[19:03:34] <LeelooMinai> O, wonderful, now I have too old RTAI kernel
[19:04:02] <LeelooMinai> I knew upgrading to 2.6 cannot be that easy:)
[19:05:08] <PCW> probably easier to just dl the Debian wheezy ISO
[19:05:17] <PCW> and re-install
[19:06:20] <LeelooMinai> Sounds drastic
[19:06:56] <LeelooMinai> Never really used debian
[19:07:13] <LeelooMinai> Is wheezy some ancient distribution?
[19:07:27] <PCW> its the current Debian dist
[19:07:49] <LeelooMinai> But doesn't it in the Debian world mean "2 years old"? :)
[19:08:25] <PCW> Jessie is the next (not released yet)
[19:08:29] <LeelooMinai> "Debian 7.7 was released October 18th, 2014. Debian 7.0 was initially released on May 4th, 2013."
[19:08:42] <LeelooMinai> SO that 7.7 would work with linuxcnc?
[19:09:48] <PCW> yes (though easier to just install the ISO)
[19:10:10] <LeelooMinai> You mean some linuxcnc iso?
[19:10:39] <LeelooMinai> I also assume I need 32-bit, 64-bit will not work, right?
[19:10:44] <PCW> yes, it already has the right kernel and linuccnc installed
[19:11:23] <PCW> I think 64 bit will work but its more bleeding edge
[19:11:42] <LeelooMinai> 10.04 Lucid Lynx/LinuxCNC v2.5 (current), <- you mean this... It's ancient
[19:12:45] <skunkworks_> there is a wheezy iso with rtai and the latest linuxcnc
[19:13:00] <LeelooMinai> O, ok
[19:13:29] <skunkworks_> http://www.linuxcnc.org/index.php/english/download
[19:13:31] <skunkworks_> top one
[19:14:24] <LeelooMinai> Ok, thx - not sure how this will end, but will try:)
[20:36:18] <taiden> what are some typical step frequencies for software step generation?
[20:36:32] <taiden> i seem to remember having 33k or more on my old atom board
[20:36:56] <taiden> which latency tested at about 10k
[20:44:21] <zeeshan> https://www.flickr.com/photos/128539016@N05/15768927021/
[20:44:39] <zeeshan> http://c1.neweggimages.com/BizIntell/item/17/371/17-371-045/2.jpg
[20:44:42] <zeeshan> i gtotta mount a supply like that
[20:44:44] <zeeshan> whats the best way?
[20:45:11] <LeelooMinai> Mount where?
[20:45:16] <zeeshan> inside the case
[20:45:25] <zeeshan> i need the power plug facing someone inside the case
[20:45:35] <zeeshan> so i can sent it to power distribution
[20:45:47] <LeelooMinai> You will be inside the case? :)
[20:45:57] <zeeshan> what do you mean
[20:46:15] <zeeshan> see the thing with these atx power supplys
[20:46:22] <LeelooMinai> You wrote "someone inside the case"
[20:46:23] <zeeshan> the mounting screws plane
[20:46:33] <zeeshan> is where also the air intake and power switch is
[20:46:42] <zeeshan> and it is also where the power cord hooks up
[20:46:54] <zeeshan> so its almost like i need to modify the power supply
[20:47:01] <zeeshan> so i can mount it differently
[20:47:05] <zeeshan> or make an L bracket
[20:47:17] <zeeshan> seems like a lotta work :P
[20:56:16] <zeeshan> i answered my question lol
[20:56:16] <zeeshan> L brackets
[20:56:17] <Jymmm> zeeshan: Q bracket
[21:15:28] <XXCoder> zeeshan: check this out
[21:15:30] <XXCoder> https://news.yahoo.com/blogs/this-could-be-big/teen-invents-flashlight-could-change-world-182121097.html
[21:15:37] <XXCoder> simple idea but amazing
[21:17:15] <zeeshan> nice
[21:17:15] <zeeshan> :D
[21:17:25] <XXCoder> yeah
[21:17:44] <XXCoder> imange this - flashlight that always works. I need few of em and one for car too
[21:18:54] <LeelooMinai> Not very bright
[21:18:59] <LeelooMinai> The flashlight, that is:)
[21:19:09] <zeeshan> you guys know of a crazy powerful flashlight?
[21:19:13] <XXCoder> yeah its generation zero
[21:19:16] <zeeshan> Jymmm posted a 750 lumen one
[21:19:21] <XXCoder> there will be better ones.
[21:19:22] <zeeshan> anything stronger and compact? :D
[21:19:26] <XXCoder> zee how about 10,000 lumens
[21:19:35] <zeeshan> depends on the price
[21:19:37] <zeeshan> i dont wanna spend more than 30 bux
[21:19:50] <zeeshan> i need two
[21:19:53] <zeeshan> one for garage and car
[21:20:00] <zeeshan> my maglite is a pos
[21:20:24] <zeeshan> its a little "lite" on the light
[21:20:25] <zeeshan> :P
[21:20:30] <LeelooMinai> THere's tons of flashlights on ali: http://www.aliexpress.com/item/2000-Lumens-CREE-XM-L-XML-T6-LED-Headlamp-Headlight-Flashlight-Head-Lamp-Light-2-18650/1716536409.html
[21:20:33] <XXCoder> lite lite lol
[21:20:46] <zeeshan> LeelooMinai: handheld
[21:20:49] <zeeshan> 2000 lumen would be nice
[21:20:52] <zeeshan> thats the power of the sun!
[21:21:03] <Jymmm> XXCoder: Eh, not a big deal
[21:21:09] <LeelooMinai> zeeshan: You think that would be bright enough for you? :) http://www.aliexpress.com/item/18000-Lumens-15-x-CREE-XM-L2-LED-5-Light-Modes-Waterproof-Super-Bright-Flashlight-Torch/1850327678.html
[21:21:21] <renesis> cree = the good shit
[21:21:24] <zeeshan> now that is COOL
[21:21:38] <zeeshan> 1200 m distance
[21:21:39] <zeeshan> LOL
[21:21:42] <zeeshan> thats more like a laser
[21:21:43] <XXCoder> dammit cant find that custom flashlight
[21:21:51] <XXCoder> it turns night park to daylight
[21:21:53] <zeeshan> i like the design
[21:21:59] <LeelooMinai> Just be careful so your neighbours don't get up at 4am and go to work thinking it's already the morning\
[21:22:03] <zeeshan> ribbed for pleasure!
[21:22:20] <XXCoder> light ribbed lol
[21:22:33] <Jymmm> 18K lumen, battery life 90 seconds
[21:22:55] <Jymmm> but realisticlly 20 minutes
[21:23:07] <XXCoder> zeeshan: thing about powerful flashlights
[21:23:09] <zeeshan> okay that sux
[21:23:10] <zeeshan> lol
[21:23:11] <XXCoder> battery drainer
[21:23:17] <zeeshan> yea thats unacceptable
[21:23:20] <LeelooMinai> You don't need more than 5 secods - whoever you shine it onto will be blind by then
[21:23:22] <zeeshan> so if in interpolate
[21:23:29] <zeeshan> a 2000 lumen will last a lot longer
[21:23:30] <renesis> single 300mA cree light should last awhile
[21:23:30] <zeeshan> :D
[21:23:30] <XXCoder> I has one of first led flashlights, it lasts weeks on
[21:23:40] <XXCoder> weeks ON not standby
[21:23:40] <Jymmm> renesis: Ewwwwwwwwwwwwwwww
[21:23:47] <renesis> what?
[21:23:56] <Jymmm> 300mA
[21:24:08] <LeelooMinai> O, nice, seems like that debian iso works
[21:24:10] <Jymmm> my signle 5mm led does 20mA
[21:24:10] <renesis> this is a decent amount of light
[21:24:21] <Jymmm> Yeah, noooooooooooooooooo
[21:24:21] <renesis> ?
[21:24:26] <LeelooMinai> At least up to the configuration stage
[21:24:43] <renesis> what does 20mA indicator LED and 300mA cree LED have to do with each other
[21:24:54] <Jymmm> renesis: cra for light
[21:24:57] <Jymmm> crap
[21:25:14] <renesis> 300mA is a decent small light
[21:25:21] <renesis> 20mA is a panel indicator
[21:25:41] <Jymmm> I'm not lighting a panel
[21:25:49] <renesis> well 20MA isnt gonna work out
[21:25:54] <renesis> mA
[21:25:58] <renesis> MA prob work fine
[21:26:40] <Jymmm> No, it won't really. Not for all praticle purpose of carrying a flashlight
[21:26:45] <renesis> anyway, decent LED flashlights, 300mA cree is prob gonna be low end of effective
[21:26:49] <Jymmm> maybe a keychain light
[21:26:58] <renesis> way better than a keychain light
[21:27:08] <renesis> def enough for fucking around an engine at night
[21:27:15] <renesis> not enough to light up a field
[21:27:29] <renesis> enough to usably light up a room for getting around
[21:27:31] <Jymmm> I how those, I never use them anymore, not enough light to even look down an engine compartment 2 ft
[21:27:40] <XXCoder> renesis: yeah thats why I love my old led flashlight. I have better 200 lumens flashlights but I will never throw away my old one.
[21:27:41] <zeeshan> lol
[21:27:41] <zeeshan> now i know 100% you havent worked on a car
[21:27:55] <renesis> i have a single cree light somewhere
[21:27:59] <renesis> used the shit out of it
[21:28:04] <renesis> fist size, fit anywhere
[21:28:08] <XXCoder> engine probably too weak but then I has other ones lol
[21:28:36] <Jymmm> hell, just try to find something you dropped on the floor you need a good light
[21:28:39] <renesis> zeeshan: for someone who complains about people making assumptions, you make a fuck ton of assumptions
[21:29:04] <LeelooMinai> Hmm, any idea what's going on there? http://i.imgur.com/pTAzqZX.png
[21:29:11] <LeelooMinai> It's from that debian iso
[21:29:13] <Jymmm> renesis: Just quit being a gorl with your cutsy flashlight!
[21:29:21] <Jymmm> girl
[21:29:31] <LeelooMinai> Maybe some encoding issues?
[21:29:43] <renesis> flashlight that fits is sometimes mor ehelpful than a brighter one that doesnt
[21:30:13] <XXCoder> one in hand is better than powerful one at home and miles away too lol
[21:30:15] <Jymmm> Yeah, lets' grab our pitchforks and light our torches too
[21:30:15] <renesis> and def more helpful than a dead one
[21:30:21] <renesis> because way more light than you needed
[21:31:34] <Jymmm> XXCoder: you want a flashlight?
[21:31:49] <zeeshan> i do jymm
[21:31:50] <zeeshan> two em
[21:31:56] <zeeshan> i liked the one you posted before
[21:31:58] <zeeshan> the 750 lumen one
[21:32:09] <zeeshan> i didnt get a reply from you to figure out if you used it or not
[21:32:19] <XXCoder> zeeshan: what use would it be for?
[21:32:22] <Jymmm> zeeshan: I own it
[21:32:35] <LeelooMinai> Hmm, I think it's time to just learn to edit all those configuration files by hand... Those wizards do weird things:/
[21:32:44] <Jymmm> XXCoder: https://www.fasttech.com/p/1212404
[21:33:09] <Jymmm> XXCoder: you can lockotut the flash and strobe too
[21:33:26] <zeeshan> XXCoder: one is for emergency
[21:33:29] <zeeshan> and one for garage
[21:33:30] <zeeshan> daily use
[21:33:41] <renesis> also lumens are easy to cheat with narrow focus
[21:34:00] <renesis> this is basically how LED are marketed on ebay, heh
[21:34:04] <LeelooMinai> You mean lux:)
[21:34:27] <LeelooMinai> Because lumens are supposed to be total light emited
[21:34:33] <Jymmm> XXCoder: You can drive on the freeway with it.
[21:34:35] <XXCoder> zeeshan: with light on or off?
[21:34:39] <LeelooMinai> So no much room for cheating there
[21:34:52] <XXCoder> yeah not how lumens units work
[21:34:57] <XXCoder> its very nice
[21:34:57] <renesis> lux is light per area, no?
[21:35:05] <LeelooMinai> Yes, lux is per area
[21:35:08] <skunkworks_> LeelooMinai: can you try a different pci slot?
[21:35:09] <zeeshan> lol renesis
[21:35:12] <zeeshan> once again so wrong
[21:35:18] <zeeshan> doesnt know the different between flux
[21:35:26] <renesis> zee youre wrong at electronics like daily
[21:35:32] <renesis> i knew the diff i just said so
[21:35:45] <renesis> you know regardless of intelligence, youre an ass
[21:35:48] <LeelooMinai> skunkworks_: I think it was just wrong config generated. I will just learn to edit them by hand.
[21:35:56] <zeeshan> lol okay
[21:35:58] <zeeshan> =D
[21:36:04] <renesis> lol okay what, its pretty clear man
[21:36:05] <zeeshan> at least im an intelligent ass
[21:36:07] <zeeshan> unlike you
[21:36:18] <renesis> okay im an idiot
[21:36:20] <XXCoder> you guys are both ass. right next to each other creeks
[21:36:21] <renesis> if that makes you happy
[21:36:26] <zeeshan> XXCoder: :D
[21:36:32] <renesis> you suck at electronics though
[21:36:33] <LeelooMinai> IN fact, in some countries they require the light-bulb manufacturers to put lumen figure on the box, so they cannot "cheat"
[21:36:45] <skunkworks_> LeelooMinai: http://linuxcnc.org/lucid/index.php/italian/forum/10-advanced-configuration/19791-hm2-5i20-errorlog?start=6#19802
[21:37:03] <XXCoder> LeelooMinai: yeah I refuse to buy boxes with no lumens
[21:37:21] <XXCoder> my room is currently nicely 1200 lumen each bulb
[21:37:23] <Jymmm> XXCoder: Do you already have any 18650 batteries?
[21:37:38] <renesis> yeah no response for the suck at basic electronics thing
[21:37:46] <XXCoder> I will evenually buy 1600 lumen ones when led tech gets better and it gets below 10w usage each
[21:37:47] <renesis> because you know its true =)
[21:38:05] <zeeshan> i know v = ir
[21:38:06] <Jymmm> renesis: quit being a childish prick with the name calling please.
[21:38:07] <XXCoder> right now 100w evaluant (1600lumen) is at hmm 18w?
[21:38:13] <renesis> jymmm: i dont call name
[21:38:19] <renesis> jymmm: as a rule, zee does
[21:38:26] <renesis> jymmm: i just bring up things that happen
[21:38:32] <Jymmm> renesis: just stop
[21:38:39] <LeelooMinai> skunkworks_: Hmm, interesting - I guess I will try to "reseat" the card:)
[21:38:45] <renesis> ask him to, i only do this when he calls names
[21:38:45] <XXCoder> tat for tat is fun :P
[21:38:46] <zeeshan> Jymmm: the reason i am calling him names and being mean to him in general is
[21:38:55] <zeeshan> cause he followed me into this channel cause he saw a screenshot of mine in another channel
[21:38:58] <renesis> um
[21:39:00] <zeeshan> where i had him on ignore
[21:39:01] <Jymmm> EVERYONE, just stop.
[21:39:04] <renesis> dude check logs from like 2006
[21:39:15] <zeeshan> back on ignore
[21:39:15] <zeeshan> :D
[21:39:16] <renesis> and on and off since
[21:40:09] <CaptHindsight> Don't make me come in there!
[21:40:14] <Jymmm> Now, do I have to put you two in the corner or to bed with no dinner?
[21:40:21] <Jymmm> what he said
[21:40:36] <zeeshan> Jymmm: flexing your power :D
[21:41:46] <renesis> if you want to enforce no name calling im down, i did it once when it was obvious, and he does it constantly
[21:42:55] <XXCoder> jeez http://www.aliexpress.com/item/YAOMING-t6-18000-lumens-YAOMING-torch-cree-t6-xml-torches-flash-player-baixar-led-flashlight/1981107610.html
[21:43:21] <XXCoder> it says 18000 lumens on item name but lumens listed is 1800
[21:43:22] <zeeshan> wow thats gorgeous
[21:43:30] <zeeshan> typo?
[21:43:38] <XXCoder> still 200 more than 100w bulb lol
[21:43:53] <XXCoder> hella bright and directed forward and not everywhere
[21:44:11] <CaptHindsight> white
[21:44:17] <XXCoder> if 1800 one is typo then its riciously powerful than 100w
[21:45:03] <Jymmm> 600 lumens here http://www.myefox.es/ym-t6g-2-1-x-cree-xm-l-t6-600-l-uacute-menes-linterna-sin-la-bater-iacute-a-p-1222144
[21:45:15] <XXCoder> 2000 lumen http://www.aliexpress.com/item/Airmail-Free-CrazyFire-High-Power-LED-Lanterna-Flashlight-18000-Lumens-15x-CREE-XM-L-T6-18650/2013632870.html
[21:45:23] <CaptHindsight> http://www.rapidtables.com/calc/light/how-lumen-to-watt.htm have to guess since they don't list the part numbers or efficiency
[21:45:33] <Jymmm> XXCoder: more lumens = shorter battery life
[21:45:44] <XXCoder> still says 18000 lumens in name for item though. strange
[21:45:54] <Jymmm> XXCoder: typo
[21:45:59] <Jymmm> happens all the time
[21:46:03] <XXCoder> makes it hard to find actual 18,000 lumen
[21:46:36] <renesis> or a more efficient LED
[21:47:21] <Jymmm> XXCoder: is that all you want? A portable sun?
[21:47:25] <XXCoder> best lumens wise (probably suck batteries like vampire) http://www.aliexpress.com/item/18000-Lumens-15-x-CREE-XM-L2-LED-5-Light-Modes-Waterproof-Super-Bright-Flashlight-Torch/2004421918.html
[21:47:40] <XXCoder> seriously though lumens for what you need not portable sun LOL
[21:48:07] <XXCoder> largest I ever seen was I think 10,000 or 100,000 but that was one hack that used way too flipping many leds
[21:48:14] <zeeshan> gonna order the one jymmm has
[21:48:46] <XXCoder> one you linked to bit ago? it does look decent
[21:48:47] <zeeshan> 750 lumen should be plenty
[21:48:54] <zeeshan> Jymmm posted the link
[21:49:02] <zeeshan> brtb]
[21:49:23] <Jymmm> https://www.fasttech.com/p/1212404
[21:49:25] <CaptHindsight> http://www.aliexpress.com/item/Free-Shipping-High-Power-100W-LED-Chip-9000LM-10000LM-2pcs-lot-white-Warm-white-for-LED/1476563187.html here's an actual 100W white LED array specd at 8000-9000 lumens
[21:49:32] <XXCoder> oh lee did
[21:49:32] <roycroft> i have some of these: http://www.cabelas.com/product/Energizerreg-High-Intensity-LED-Flashlight/1327152.uts?Ntk=AllProducts&searchPath=%2Fcatalog%2Fsearch.cmd%3Fform_state%3DsearchForm%26N%3D0%26fsch%3Dtrue%26Ntk%3DAllProducts%26Ntt%3Dled%2Bflashlight%26x%3D0%26y%3D0&Ntt=led+flashlight&WTz_l=Unknown
[21:49:42] <roycroft> they're nice for general use, and take standard aa batteries
[21:49:46] <XXCoder> crazy.
[21:49:47] <renesis> capthindsight: ha nuts
[21:49:48] <Valen> I want some stupid bright red LED's
[21:49:50] <Valen> like 100W
[21:49:57] <renesis> kevtris made some sort of flashlight out of one of those
[21:50:01] <Valen> any suggestions for reptutible suppliers that are cheap
[21:50:08] <roycroft> i rarely have a need for something brighter than that
[21:50:56] <XXCoder> hjeez finally found it!!
[21:50:57] <XXCoder> https://www.youtube.com/watch?v=62NP5GThFo0
[21:51:10] <XXCoder> oh wrong one
[21:51:30] <CaptHindsight> http://www.ledwv.com/en/120w-led-power-p-795.html 120W white LED 12000~13000lm
[21:51:41] <Valen> this is one we made http://imgur.com/a/sxZfd
[21:51:45] <renesis> he made an HPS flashlight?
[21:52:33] <renesis> i wonder why he only did 300W
[21:52:38] <XXCoder> CaptHindsight: wire with big backend battery http://www.alibaba.com/showroom/100000-lumen-led.html
[21:52:50] <XXCoder> 100,000 lumens
[21:53:03] <XXCoder> just might be suffecent for zeeshan ;)
[21:53:09] <CaptHindsight> http://www.ledwv.com/en/led-500w-p-701.html white 500W 47000-50000LM
[21:53:24] <renesis> meanwell makes LED drivers?
[21:54:04] <renesis> noice
[21:54:25] <CaptHindsight> XXCoder: yes, they just start mounting multiple arrays to get to higher power
[21:54:48] <XXCoder> capt did you see link I posted at beginning?
[21:54:58] <XXCoder> not very strong but will work forever basically
[21:55:09] <CaptHindsight> don't think so
[21:55:17] <XXCoder> its solid state so it will never break basically too
[21:55:28] <XXCoder> https://news.yahoo.com/blogs/this-could-be-big/teen-invents-flashlight-could-change-world-182121097.html
[21:55:29] <CaptHindsight> I came in during ruckus
[21:55:35] <CaptHindsight> +the
[21:55:59] <XXCoder> I guess from video it's around 50 to 100 lumens
[21:58:12] <XXCoder> oh it says 24 lumens
[21:58:37] <CaptHindsight> not very efficient
[21:58:50] <XXCoder> well techinically youre already wasting body heat
[21:59:11] <XXCoder> so its 100% effecient anyway. it just needs better power harvesting and designj
[21:59:25] <XXCoder> once it reaches 100 lumens its enough for dark places
[21:59:30] <CaptHindsight> they should made into tinfoil hats
[21:59:38] <CaptHindsight> multipurpose
[21:59:52] <XXCoder> not too sure where youre going
[21:59:52] <renesis> single cree xm is >200
[22:00:53] <XXCoder> heh my old led flashlight (one of first led flashlights in market!) is around 50 lumens
[22:01:00] <CaptHindsight> a peltier needs a delta from one side to the other
[22:01:02] <XXCoder> it worked wonderfully
[22:01:15] <XXCoder> CaptHindsight: it has alum inside for cool side
[22:01:23] <XXCoder> alum then air
[22:01:43] <XXCoder> makes me wonder if it can be designed to refract heat out hole and not to other side pipe
[22:01:48] <CaptHindsight> so head heat --> peltier --> tinfoil hat --> room ambient air
[22:01:51] <XXCoder> even cooler
[22:02:09] <renesis> wouldnt it be taking the heat and putting it on the battery
[22:02:22] <XXCoder> renesis: it has no battery
[22:02:32] <XXCoder> its the whole reason she won google invent prize
[22:02:39] <renesis> when did we stop talking about flashlights
[22:02:40] <XXCoder> it's major reolutionary idea
[22:03:00] <zeeshan> XXCoder: did you know
[22:03:07] <zeeshan> at rest, a human body releases 60W of energy
[22:03:11] <zeeshan> through just radiation lol
[22:03:34] <XXCoder> well yes. thats how it works after all. lol
[22:03:38] <zeeshan> :D
[22:03:50] <zeeshan> i was fascinated when i first did the sample problem in the heat transfer book
[22:04:05] <zeeshan> another 60W is lost through natural convection
[22:04:08] <renesis> Art Makosinski remembers his surprise when Ann figured out how to light the flashlights bulbs at 20 millivolts
[22:04:14] <zeeshan> assuming 20-25C room temp
[22:04:17] <CaptHindsight> http://www.ledwv.com/en/led-1w-p-84.html 1w white LED ~100Lumens
[22:04:33] <zeeshan> you know what i hate?
[22:04:38] <zeeshan> 6500k leds
[22:04:46] <zeeshan> theyre so dim looking for the same lumens
[22:04:46] <XXCoder> bluish ones?
[22:04:48] <zeeshan> yea
[22:04:58] <zeeshan> 4300 is perfect
[22:05:24] <renesis> wonder how she got 20mV to do 24 lm
[22:07:23] <CaptHindsight> the average person at rest 65 Calories (kCal) per hour 75.54W
[22:07:33] <XXCoder> http://www.amazon.com/Brinkmann-809-1021-0-Rebel-LED-Flashlight/dp/B002ZG7WMG/ref=sr_1_21?s=hi&ie=UTF8&qid=1415850438&sr=1-21
[22:07:44] <XXCoder> this is newer version of my flshlight
[22:07:57] <XXCoder> runtime 75 hours
[22:08:17] <XXCoder> funny because mine is even longer. it can even run on supposely dead batteries
[22:08:49] <renesis> 100 lm/w, so she would just have to harness like .33% i think
[22:08:54] <CaptHindsight> http://www.ebay.com/itm/like/121415474632?lpid=82 Peltier Plate $4.77
[22:09:07] <renesis> then maybe its just a jewel thief to boost to LED Vf
[22:09:34] <renesis> if its even an LED
[22:10:02] <CaptHindsight> forward voltage for a single LED is ~3.4V
[22:10:04] <renesis> they mention voltage conversion so seems likely
[22:10:52] <renesis> so much current to get 20mV that boosted tho
[22:10:53] <XXCoder> capt theres other version thats long rather than square
[22:11:14] <XXCoder> that one is better for flashlight
[22:11:34] <XXCoder> honestly if it is to be used in flashlight I'd make custom pelter plate
[22:11:42] <XXCoder> even bigger and basically tube shaped
[22:11:54] <CaptHindsight> miner helmet
[22:11:58] <CaptHindsight> hands free
[22:12:10] <XXCoder> yeah head releases so much heat
[22:12:17] <XXCoder> go adread patent that idea
[22:12:29] <XXCoder> you'll have to use her patent to extend to yours though
[22:12:33] <CaptHindsight> dare me
[22:12:38] <CaptHindsight> go ahead
[22:12:49] <XXCoder> I double fracking dare you!
[22:13:16] <CaptHindsight> does she have a patent on what people have done for years?
[22:13:23] <Jymmm> CaptHindsight: I triple dawg dare you!
[22:13:30] <renesis> she could patent the assembly
[22:13:32] <XXCoder> CaptHindsight: years? not at all
[22:13:32] <CaptHindsight> oh no!
[22:13:39] <XXCoder> she was first to have that idea
[22:13:54] <CaptHindsight> I don't think so
[22:13:58] <renesis> generating electricity with a peltier?
[22:14:14] <XXCoder> renesis: no. using it to make batteryless flashlight
[22:14:54] <Jymmm> not a new idea either
[22:14:57] <renesis> yeah thats a stretch, it would prob be pretty easy to find people mentioning something like that
[22:15:04] <XXCoder> thing is
[22:15:07] <renesis> but if her assembly works, she could patent that
[22:15:21] <XXCoder> sometimes it's simple ideas that is a big success
[22:15:58] <XXCoder> odd thing I just thought - it wouldnt even need a switch!
[22:16:17] <XXCoder> you would hold it when you need it. when pocketed it should not generate enough to even light up.
[22:16:22] <CaptHindsight> how about using sunlight to power a battery and then a LED? This would even work without people or even cold ones.
[22:16:27] <renesis> i dunno you dont need to charge it?
[22:16:35] <XXCoder> renesis: no battery
[22:16:43] <renesis> could use a cap to get it going
[22:16:47] <XXCoder> hold it then it light ups
[22:17:25] <XXCoder> CaptHindsight: yeah but solar means more money. it works in cold weather actually. it works even better
[22:17:37] <CaptHindsight> the latest quantum dots emit for >8 hours
[22:17:44] <renesis> oh, mentions making her own transformer
[22:17:44] <XXCoder> not so much in hot weather I would say but then dunnpo
[22:17:49] <renesis> so theres the boost circuit
[22:18:05] <CaptHindsight> so you just let them soak up the sun all day and then they emit all night
[22:18:19] <renesis> be funny if she tries to patent a joule theif
[22:18:28] <CaptHindsight> no batteries, no wires, no warm bodies
[22:18:30] <XXCoder> dunno?
[22:19:32] <XXCoder> http://www.amazon.com/BluMaxx-Hi-Performance-Flashlights-Batteries-Included/dp/B002QSE1R2/ref=sr_1_1?ie=UTF8&qid=1415850574&sr=8-1&keywords=blumaxx+light lol my regular ones
[22:19:45] <XXCoder> it uses battery faster but it's nice and unbreakable.
[22:20:09] <XXCoder> I took couple to ape cave and I smashed one on rock when I fell and had to grab one of rocks lol
[22:20:37] <XXCoder> surpised at 40 lumens 0- it's hella brighter than my old one
[22:27:45] <XXCoder> curious if any of you are following no shave nov?
[22:32:44] <XXCoder> looks like one of freenode server went down
[22:34:06] <Jymmmm> just a netsplit
[22:34:07] * LeelooMinai sighs
[22:34:15] <LeelooMinai> Still no cookies for me: "hm2/hm2_5i25.0: invalid cookie, got 0x55AACAFF, expected 0x55AACAFE"
[22:34:29] <Jymmmm> LeelooMinai: Got Milk?
[22:36:50] <renesis> pecan sandies + milk = real ultimate power
[22:37:13] <renesis> if you microwave the sandies just long enough, they are chewy and taste like cookie dough
[22:37:30] <renesis> its like <20 sec very easy to burn them
[22:54:56] <LeelooMinai> Hmm, got further again, but still something is wrong: http://i.imgur.com/RV7D1dF.png
[22:55:19] <LeelooMinai> Not sure why "dropping AnyIO board" is there
[22:57:56] <LeelooMinai> I see also "Pin 'hm2_5i25.0.7i76.0.0.input-14-not' does not exis"
[22:58:25] <LeelooMinai> That's good actually, it means it's probably configuration - I will be learning this tomorrow
[22:58:45] <LeelooMinai> So maybe this day was not lost after all:)