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[02:15:33] <Deejay> moin
[04:46:22] * anonimasu is about to have a new machine day
[08:04:15] <Loetmichel> *gnah* waht have i done to deserver so much bad karma? i have written in vacation time from tomorrow on... today a device is missing in delivery that we need to modify before xmas... and a few minutes ago a customer called: the hauling service mashed a pallett wit 12 computers and 12 monitors and 12 laserprinter to pulp... how do i explain my wife that i have to work over the holidays AGAIN?
[08:08:09] <skunkworks> yeck
[08:08:49] <jdh> "hi honey, I'll be getting lots of overtime"
[08:10:13] <jthornton> http://www.gnipsel.com/linuxcnc/arcgen/index.html
[08:10:47] <jthornton> creating profiles using the Arc Generator!
[08:10:48] <skunkworks> jthornton, I am getting a blank page
[08:11:15] <jthornton> try refreshing it
[08:11:23] <jthornton> I was just uploading a fresh page
[08:13:47] <jthornton> skunkworks, does it load now?
[08:14:08] <jdh> does for me
[08:15:50] <skunkworks> hmm nope. Odd
[08:16:05] <skunkworks> chrome, firefox and ie show a blank page
[08:16:24] <jthornton> I have a problem when I update a page it won't refresh on my end
[08:16:47] <jthornton> try from here
http://www.gnipsel.com/linuxcnc/index.html
[08:18:14] <tjtr33> http://www.gnipsel.com/linuxcnc/arcgen/files/arcgenl.py gets me 500 err
[08:18:35] <jthornton> ok, let me check that out
[08:20:15] <jdh> oh, I get 500 for that also. the index page loads fine though
[08:21:13] <andypugh> Loetmichel: Say “No” ?
[08:21:52] <Loetmichel> jdh: mi wife already threatended my boss that she will come by and "sit down ohn him" if he makes me work the holidays again, the fourth year in succession
[08:21:56] <andypugh> (and you would have to _deliberately_ have to mash the pallet to break every single item.
[08:22:05] <Loetmichel> ... ahd her being about 130kg that IS a thread
[08:22:12] <Loetmichel> :-)
[08:22:14] <jthornton> jdh, I need to zip the files I think
[08:22:34] <Loetmichel> andypugh: photos are in the mail. we'll see
[08:22:55] <jdh> jt: probably better.
[08:23:17] <andypugh> Loetmichel: Some men like that sort of thing. Perhaps _he_ smashed the pallet?
[08:23:38] <Loetmichel> no, cuistomer did ;-9
[08:23:42] <tjtr33> Loetmichel, you really are in trouble now, telling her weight on irc
[08:23:52] <Loetmichel> so what?
[08:24:02] <Deejay> hihi
[08:24:14] <Loetmichel> "about" doesent say the exact weight ;-)
[08:24:21] <Deejay> -+50kg ;)
[08:25:24] <jthornton> jdh, ok do a ctrl F5 to refresh the page
[08:26:11] <jdh> the link still shows .py
[08:26:39] <tjtr33> jthornton, 404 err now, same page
[08:26:56] <jthornton> ctrl + F5 didn't refresh the page?
[08:27:03] <tjtr33> tried it
[08:27:05] <tjtr33> ng
[08:27:16] <jthornton> http://www.gnipsel.com/linuxcnc/arcgen/files/arcgenl18.py.zip
[08:27:17] <jdh> I non-cache-refreshed
[08:27:47] <tjtr33> firefox 34.0.5 ubu 10.04
[08:27:57] <jdh> <a href="files/arcgen.py">ArcGen 1.7</a>
[08:28:28] <jthornton> oh, that one is on a different page I think
[08:28:49] <tjtr33> gnite!
[08:29:57] <jthornton> hmm my firefox is 20 on ub 10.04
[08:30:51] <jthornton> actually I've changed both pages so if it still shows 1.7 your looking at a cashed page
[08:31:55] <jdh> http://www.gnipsel.com/linuxcnc/gedit/index.html
[08:32:31] <jdh> not cached
[08:42:13] <skunkworks> jthornton, working now
[08:57:49] <JT-Shop> good
[09:00:18] <JT-Shop> jdh, I must have missed changing that link
[09:00:36] <jdh> too many links spoil the soup.
[09:01:02] <JT-Shop> yea, it is a work in progress with no structured plan to start
[09:04:32] <Loetmichel> ok, go the pics.... someone had driven a forklift thru the pallets contents instead of the pallet... FOUR TIMES... seems there are some dead tfts and keyboards, and at least two hof the PCs have slight dents in the cases... customer will dismaltne the palled and look at the seperated contents..
[09:05:08] <skunkworks> disgruntled employee?
[09:08:13] <jdh> your wife did it. she secretly wants you gone for the holidays
[09:09:09] <Deejay> hrhr
[09:09:43] <Deejay> Loetmichel, four times? wtf
[09:25:32] <jthornton> jdh, link fixed
[09:30:54] <archivist_herron> two fork tines four slots
[09:42:21] <PetefromTn_> Good morning folks
[09:44:43] <Deejay> hi mister pete!
[09:45:02] <PetefromTn_> HEY DEEJAY!!
[09:45:07] <PetefromTn_> ;)
[09:46:00] <Deejay> :-)
[09:46:46] <PetefromTn_> Runnin' parts here today. They are just little simple aluminum parts with a champfered hole and parting off from an extrusion 7 at a time...
[09:48:48] <JT-Shop> anyone bored enough to try out making G code with the arc generator?
[09:50:19] <PetefromTn_> normally I would be but I got some work to do now thankfully LOL
[10:08:25] <CaptHindsight> when did they start idiot proofing things like heating pads, butter heaters and electric blankets?
[10:08:47] <CaptHindsight> butter/gutter
[10:08:59] <syyl_ws> when the first people woke up and where burned to charcoal?
[10:09:05] <CaptHindsight> everything has a timer now
[10:11:49] <FinboySlick> Idiot-proofing is a futile arms race. There's always a better idiot.
[10:12:12] <CaptHindsight> same for new gas cans, you have to snip off the latches to make them work easily
[10:12:26] <syyl_ws> circular saws
[10:12:29] <syyl_ws> so much crap to remove
[10:12:31] <syyl_ws> ;)
[10:12:57] <malcom2073> "Warning, do not attempt to stop chain saw chain with hand or groin"
[10:13:43] <PetefromTn_> hehe
[10:15:20] <pcw_home> CaptHindsight: and they cant be bothered to put 1C cent worth of screen in the spout for a flame arrestor
[10:15:29] <syyl_ws> when you have a cnc with a heidenhain controller
[10:15:39] <syyl_ws> you have to pay so the machine runs with door open
[10:15:50] <syyl_ws> and also sign a paper that you do it on own responsibility
[10:15:53] <syyl_ws> ...
[10:16:00] <CaptHindsight> yikes
[10:16:06] <PetefromTn_> HAAS machines there is a simple setting you can change
[10:16:11] <Rab> Haha, the anti-spill gas cans are the biggest failure ever. I've spilled more gas trying to work those stupid things.
[10:17:39] <CaptHindsight> https://www.youtube.com/watch?v=X3o5tHLWZKc How To Fix a New Fangled Gas Can
[10:33:06] <lair82> PCW, you around?
[10:35:50] <pcw_home> yeah
[10:37:35] <lair82> Can you get me the pin-out for the ENCY card, I am getting close to the point of mounting and wiring that board up.
[10:40:13] <pcw_home> all connnectors match our standard 8 pin encoder pinout:
[10:40:14] <pcw_home> A (pin 1 = square pad)
[10:40:16] <pcw_home> /A
[10:40:17] <pcw_home> GND
[10:40:19] <pcw_home> B
[10:40:20] <pcw_home> /B
[10:40:22] <pcw_home> 5V
[10:40:23] <pcw_home> Z
[10:40:25] <pcw_home> /Z
[10:47:19] <lair82> Ok, I looked at the diagram for the 7i48, and was kind of figuring that's what it would be. Do I need to do anything with the jumpers on that card?
[10:48:32] <pcw_home> jumpers set the differential/TTL mode of the inputs
[10:49:44] <pcw_home> (like the 7I48 inputs)
[10:51:39] <lair82> I see, just jumped back to the 7i48 pdf, and clear as can be now.
[10:58:21] <lair82> Thanks Peter,
[11:14:41] <PetefromTn_> I am running a couple hundred small simple parts 7 at a time here and this is kinda enjoyable.. I can watch TV while the machine is running them and just pop out there here and there to replace materials. Too bad I can't get this kind of work all the time LOL
[11:16:33] <archivist> be glad you are not standing at a capstan lathe all day :)
[11:19:40] <PetefromTn_> I can
[11:19:53] <PetefromTn_> can't wait to be standing at my CNC lathe running that thing soon
[11:21:06] <skunkworks> The collet on the K&T jammed yesterday.. This has happened a few time before be after some fiddling it would release. This time it didn't. Dad was able to loosen the nose of the spindle and useing the pull holes add some extra pressure to the tool. then it released. We need to check the cylinder - we wonder if it has excesive leak by.. (it should push 6 tons..)
[11:21:23] <PetefromTn_> ordered a bunch of 6061 plate yesterday for another customers project
[11:21:56] <PetefromTn_> jeez that machine is a monster skunkie LOL
[11:29:13] <PetefromTn_> what collets does it use?
[11:31:38] <skunkworks> it is K&T's own standard... (that I think they only used for a few years.)
[11:32:48] <skunkworks> This is the extra spindle we have..
http://electronicsam.com/images/KandT/conversion/spindle/spindle.JPG
[11:33:18] <skunkworks> 2.25 stait shank with mecahnical barcode rings.
[11:33:45] <skunkworks> IIRC it is 2.25" anyway..
[11:33:59] <archivist> pint mug for scale?
[11:34:10] <skunkworks> normal coffe cup...
[11:34:15] <skunkworks> :)
[11:34:19] <skunkworks> 'normal'
[11:34:57] <jdh> is normal 6oz or 20?
[11:35:02] <PetefromTn_> nice to have a complete backup spindle ready to rock
[11:35:30] <skunkworks> I think that was the tool in the spindle since the machine was taken out of service in the mid 80's - notice the dirt from when it was dumped into the junkyard..
[11:37:13] <andypugh> Those bearings look expensive
[11:37:38] <andypugh> Heck, the bearings for my 30-taper mill are £400 each
[11:38:01] <andypugh> And they would fit in your coffee mug
[11:38:18] <skunkworks> heh
[11:39:08] <SpeedEvil> It's probably when you start seriously considering making your own ball bearings that you may have enough tools.
[11:39:09] <skunkworks> We have never looked at replacements.. it certainly limits the rpm... around 3000rpm is the limit
[11:39:27] <skunkworks> (heat wise)
[11:39:40] <andypugh> My spindle can only do 1500, and the bearings get very hot at that speed!
[11:39:51] <PetefromTn_> jeez that kinda sucks
[11:40:04] <skunkworks> the original hydraulic servo setup went to 2400rpm
[11:40:08] <PetefromTn_> but honestly my spindle is not exactly fast either at max 6k
[11:40:25] <skunkworks> we have a matsurra now with a 6k spindle.. it helps
[11:40:30] <andypugh> I wonder if the preload is too high on my spindle.
[11:40:49] <skunkworks> I would guess.. are they timken?
[11:40:51] <PetefromTn_> I would think any bearing that is getting hot is not setup correctly
[11:41:05] <PetefromTn_> or not lubed properly
[11:41:21] <PetefromTn_> even plain roller bearings can easily do 1500 RPM
[11:42:12] <andypugh> I _think_ the bearings are Fafnir, and they are lubricated with the specified NLG3 grease
[11:43:01] <PetefromTn_> fafnir makes a fine bearing there is probably something wrong there with the setup
[11:43:43] <skunkworks> here are the belvel washers..
http://electronicsam.com/images/KandT/conversion/spindle/belvel.JPG
[11:44:11] <skunkworks> those are about 1/8th thick, 2+ish inches in diameter..
[11:44:12] <PetefromTn_> heh they look like dinner plates LOL
[11:44:23] <skunkworks> dpm
[11:44:44] <skunkworks> don't ask be about the bolts holding the floating bearing... it came that way..
[11:48:11] * archivist asks about those bolts at funny angle :)
[11:49:28] <archivist> must be a missing clamp ring
[11:49:33] <PetefromTn_> must have been a keeper of some sort that broke..
[11:49:45] <andypugh> Evertything else about that machine, except those bolts, shouts “cost is not a concern” so I can’t think they are original.
[11:57:43] <CaptHindsight> http://www.ebay.com/itm/Kats-USA-Made-Magnetic-Engine-Block-Heater-for-Tractors-or-other-Equipment-200W-/371195659256 says "Thermostatically controlled" but what temp is it set for?
[11:59:34] <archivist> at 200W probably just above freezing
[12:01:05] <CaptHindsight> so if you plugged it in while in a 25C room it wouldn't turn on
[12:01:45] <CaptHindsight> it's like everything else I've found, I have to modify the thermostat
[12:03:10] <SpeedEvil> what are you wanting?
[12:03:14] <andypugh> That thing would work a treat on my alloy engine with plastic oil sump :-)
[12:03:55] <SpeedEvil> http://www.ebay.co.uk/itm/Digital-PID-F-C-SSR-Thermostat-Temperature-Controller-PT100-Thermocouple-/400683490562?pt=UK_BOI_Industrial_Automation_Control_ET&var=&hash=item5d4a98dd02 or similar
[12:04:41] <CaptHindsight> I was hoping to find small heaters like a heating pad, electric blanket, magnetic block heater with a thermostat and range of 20-60C
[12:05:02] <Jymm> Solder wick makes an excellent grounding strap for flashlights
[12:05:13] <CaptHindsight> I can just build it but I was just trying to buy vs build yet again
[12:05:23] <Jymm> ...especially other a blob of solder.
[12:05:28] <Jymm> over*
[12:06:37] <CaptHindsight> I just want to warm containers from 4-200L a few degrees higher (5-30C) than room temp
[12:09:14] <CaptHindsight> heating pads used to be just OFF/1/2/3 with no timer. Now they all shut off after 1 hour.
[12:09:35] <Jymm> CaptHindsight: incadensent light bulb(s)
[12:11:03] * SpeedEvil is trying to work out how to heat rapidly water flowing through a pipe
[12:11:27] <CaptHindsight> http://www.ebay.com/itm/Electric-Water-Flow-Heater-DAFI-7-3-kW-240V-100-Brand-New-/131347353738
[12:11:27] <SpeedEvil> IR is leading so far - thermal IR in the 1.5um and longer range is absorbed efficiently
[12:11:57] <SpeedEvil> hmm
[12:12:02] <SpeedEvil> that is pretty reasonable
[12:12:48] <CaptHindsight> yes, the point of use hot water heaters have come a long way in the past few years
[12:13:05] <CaptHindsight> they still aren't popular in the US
[12:13:16] <CaptHindsight> it's still burn baby burn
[12:13:29] <Jymm> http://www.ebay.com/itm/InSinkErator-H-CONTOUR-SS-Instant-Hot-Water-Dispenser-New-/201241330158?pt=LH_DefaultDomain_0&hash=item2edaeb01ee
[12:13:37] <SpeedEvil> I was really wanting more like 15kW
[12:13:51] <archivist> shower system
[12:13:54] <Jymm> SpeedEvil: application?
[12:14:02] <Rab> http://inspectapedia.com/plumbing/Electric_Shower_Heaters.htm
[12:14:03] <SpeedEvil> Jymm: domestic hot water without waiting
[12:14:22] <Jymm> SpeedEvil: tankless water heater not enough?
[12:14:28] <Rab> Tropical countries use the electric shower heads, they're scary but very effective.
[12:14:48] <SpeedEvil> I'm being cheap
[12:14:54] <archivist> modern gas boilers do it here
[12:15:02] <Jymm> SpeedEvil: It's propane
http://www.ebay.com/itm/Instant-On-Demand-Portable-Propane-LP-Gas-Tankless-Hot-Water-Heater-System-/261613131409?pt=LH_DefaultDomain_0&hash=item3ce95b9691
[12:15:32] <Jymm> SpeedEvil: I've seend one and talked to a vendor, not bad actually.
[12:15:33] <archivist> I am cheap, I use the cheap over night electricity
[12:16:20] <Jymm> archivist: Can you sell it back to the Elec Co during the day at daytime rates?
[12:16:29] <CaptHindsight> archivist: do residential meters there monitor the time as well as load?
[12:16:37] <archivist> yes
[12:16:41] <CaptHindsight> wow
[12:17:01] <skunkworks> we think atleast the backup spindle was replaced in 73'... :)
[12:17:17] <CaptHindsight> archivist: many here are still mechanical
[12:17:46] <Jymm> We now have digital water meters
[12:17:50] <archivist> CaptHindsight, even the mechanical meters had two counters
[12:18:34] <archivist> "economy 7" is the name over here for it
[12:18:56] <SpeedEvil> It's an option
[12:19:00] <CaptHindsight> most older homes in the cities don't have water meters
[12:19:20] <SpeedEvil> you can either have slightly lower rates all the time, or slightly higher rates dueing the day and cheaper at midnight-7AM
[12:19:24] <SpeedEvil> (UK)
[12:42:07] <zeeshan> wtf
[12:42:16] <zeeshan> i put a radio in my garage
[12:42:32] <zeeshan> and every like 15 seconds there is a huge amount of static that almost blows up the speaker
[12:42:47] <zeeshan> there is some massive RF discharge coming from somewhere :/
[12:43:10] <jdh> mine does that too. minor though, not massive
[12:43:23] <zeeshan> the only thing electrical near is
[12:43:25] <zeeshan> *it
[12:43:27] <zeeshan> is the smart meter
[12:43:29] <zeeshan> on the outside wall
[12:43:37] <zeeshan> all my machines are turned off..
[12:43:39] <malcom2073> smart meter?
[12:43:42] * malcom2073 puts on the tin foil hat
[12:43:42] <malcom2073> :P
[12:43:46] <Rab> haha
[12:43:54] <zeeshan> you know a smart meter
[12:44:03] <jdh> vs. a smart inch
[12:44:03] <zeeshan> those things they use to monitor your electricity usage
[12:44:41] <malcom2073> Yes, I have a mechanical though heh, I was making a joke about the amount of conspiracy theories surrounding them... figured the tin foil hat would've tipped you off :)
[12:44:57] <zeeshan> i havent heard any :P
[12:44:59] <Rab> zeeshan,
http://www.instructables.com/id/Smart-Meter-radiation-shield/
[12:45:05] <malcom2073> No? They're a riot
[12:45:18] <Rab> zeeshan, conspiracy theories about...people are convinced they're being cooked in their beds.
[12:45:23] <Rab> er, abound
[12:45:40] <malcom2073> Rab: And people convinced the utility companies are screwing them out of thousands of dollars with the new meters
[12:45:53] <zeeshan> LOL
[12:45:54] <zeeshan> wow
[12:45:56] <zeeshan> i didnt know any of this
[12:46:10] <zeeshan> that shield looks very illegal :P
[12:46:14] <pcw_home> worried about a smart meter and they hold a cell phone to their head
[12:46:17] <zeeshan> i think tampering with an meter is a crime!
[12:46:17] <Rab> http://en.wikipedia.org/wiki/Smart_meter#Opposition_and_concerns
[12:46:28] <zeeshan> pcw_home: i use my cell phone in the garage
[12:46:32] <zeeshan> its never done this to the radio?
[12:46:50] <malcom2073> Indeed, tampering with or in any way affecting the operation of (blocking signals for wireless readers) is in some places a felony
[12:47:11] <Rab> zeeshan, do some testing. Move the radio across the garage and see if anything changes.
[12:47:26] <zeeshan> i did
[12:47:32] <zeeshan> its louder when its next to the wall
[12:47:36] <zeeshan> closest to the meter
[12:47:46] <zeeshan> and quieter but still noticeable when 20 feet from that wall
[12:47:48] <zeeshan> across the garage
[12:47:49] <Rab> Very suspicious.
[12:47:59] <zeeshan> when i put my cell phone next to it
[12:48:01] <zeeshan> and make a call
[12:48:06] <zeeshan> like 1" away, it goes crazy too
[12:48:11] <zeeshan> but 2 feet away
[12:48:12] <zeeshan> its okay
[12:48:30] <Connor> I have a smart meter now..
[12:48:32] <zeeshan> i just found it interesting
[12:48:43] <zeeshan> its kinda annoying cause it happens every 15 seconds
[12:49:02] <Rab> IIRC some smart meter systems are cellular, some use other RF bands and some update over the power line itself.
[12:49:25] <zeeshan> im gonna put some aluminum foil on the wall
[12:49:31] <zeeshan> and see if it blocks it :P
[12:50:07] <Rab> zeeshan, see if you can identify the model of your meter and discover how it broadcasts data.
[12:50:39] <CaptHindsight> crack the meter code
[12:50:42] <pcw_home> 15 seconds sounds fast for a smart meter (unless its mains powered)
[12:50:49] <Jymm> jdh: Found you a diving light...
https://www.youtube.com/watch?v=FynsFnnHsJM
[12:51:25] <Jymm> jdh: (NFC if it's diving rated, just fucking bright)
[12:51:28] <Rab> zeeshan, join the resistance:
http://stopsmartmeters.org/
[12:51:57] <CaptHindsight> I think the gas meters here use some version of zigbee
[12:52:15] <malcom2073> Lol toxic injuries from the meters!
[12:53:10] <CaptHindsight> "Warning not for consumption!"
[12:53:24] <CaptHindsight> "External use only"
[12:54:19] <CaptHindsight> well at least it's FUD in the right direction since all the smart meters get abused by the utilities
[12:54:50] <ReadError> you seen those people who think all RF makes them sick
[12:54:54] <ReadError> they cant be around cell phones
[12:54:57] <ReadError> so they live in caves
[12:55:20] <malcom2073> Psychosomatic disorder is an amazingly powerful thing
[12:55:36] <malcom2073> People can actually make themselves sick, thinking that something is making them sick, even though it's not, their own brain is
[12:55:49] <zeeshan> lol rab
[12:55:54] <zeeshan> aluminum foil didnt do shit
[12:55:57] <CaptHindsight> well we don't help people with disorders, unless you call prisons help
[12:56:15] <zeeshan> ill look up the model number later today
[12:56:17] <zeeshan> its too cold :{
[12:56:26] <pcw_home> Must be HAARP pulses
[12:56:40] <zeeshan> i live near an airport
[12:56:43] <CaptHindsight> mental illness is all backwards in this country just like being a whistle blower
[12:56:47] <zeeshan> i wonder if they are emitting some shit
[12:56:59] <jdh> are there chemtails overhead?
[12:57:13] <CaptHindsight> kill the messenger vs punish the actual criminals
[12:59:44] <CaptHindsight> plus there's always some new allergy fad
[13:16:35] <jdh> I'm allergic to idiots and jesus
[13:20:27] <pcw_home> If you live near an airport you can often pick up radar on a radio (probably direct detection in some semiconductor)
[13:23:15] <pcw_home> sounds more like a beep or buzz though (at PRF) , not noise
[13:23:59] <skunkworks> I just hear voices..
[13:25:14] <pcw_home> :-)
[13:25:14] <CaptHindsight> are they saying anything interesting?
[13:25:28] <Jymm> skunkworks: are the voice alive or dead?
[13:26:03] <PetefromTn_> I thought I was hearing voices earlier....
[13:26:15] <jdh> and it was your wife
[13:26:16] <PetefromTn_> but it turned out to be my stomach growling LOL
[13:26:40] <PetefromTn_> watch it man my wife WILL kick your ass....
[13:27:45] <jdh> have you considered speaking with a counselour about yoru abusive relationship?
[13:28:15] <PetefromTn_> naah I enjoy it far too much.
[13:32:47] * jdh nods.
[13:57:52] <Jymm> I've heard of foot fetish, ass fetish, but never foot-in-ass fetish =)
[13:58:28] <PetefromTn_> damn I set down my rotary deburring tool and now I can't find the thing anywhere heh
[13:58:45] <Jymm> PetefromTn_: Check your butt?
[13:59:47] <Jymm> PetefromTn_: Not judging, just sayin ;)
[14:00:34] <PetefromTn_> That's the trouble with you Jymm you are always just sayin' some kinda ridiculousness...:D
[14:00:36] <Jymm> jdh: IF that light was underwater rated, would it actually be useful?
[14:00:59] <Jymm> PetefromTn_: --> PetefromTn_: naah I enjoy it far too much.
[14:02:15] <PetefromTn_> http://www.ebay.com/itm/8-GATOR-Lathe-Chuck-3-Jaw-Direct-Mount-D1-5-NEW-/311198361611?pt=BI_Tool_Work_Holding&hash=item4874de280b Anyone ever heard of a Gator brand chuck?
[14:03:26] <Jymm> I think it's kinda sad that a heatsink would cost a LOT more than this LED
http://www.dx.com/p/10w-800lm-6500k-white-light-led-square-module-237845
[14:03:52] <SpeedEvil> not reallyt
[14:04:12] <Jymm> SpeedEvil: suggestion? link?
[14:04:20] <jdh> Jymm: not for me.
[14:04:28] <Jymm> jdh: In general
[14:04:43] <jdh> I'm the only one that counts, so no.
[14:04:49] <Jymm> jdh: Does light travel well underwater?
[14:04:49] <SpeedEvil> http://www.dx.com/p/maitech-03120351-aluminum-oxidation-heatsink-radiator-black-334769
[14:04:52] <jdh> useless handle. Not enough burn time.
[14:05:05] <SpeedEvil> Jymm: depends on the wavelength
[14:05:11] <SpeedEvil> and purity of the water
[14:05:15] <Jymm> SpeedEvil: way too small
[14:05:27] <SpeedEvil> with airflow
[14:05:38] <Jymm> SpeedEvil: no airflow
[14:05:55] <Jymm> passive
[14:06:08] <jdh> light quality is more important to me than plain brightness. Beam temperature and pattern
[14:06:35] <SpeedEvil> 15cm length of
http://www.scaffolding-direct.co.uk/alloy-tube-48-3mm-x-6m-length-for-tube-clamps-and-scaffolding.aspx
[14:07:31] <Jymm> SpeedEvil: square tubing perhapse
[14:07:47] <SpeedEvil> hit it with a hammer, and you've got a flat spot
[14:07:57] <Jymm> lol
[14:08:16] <Jymm> SpiderMan... Err Boy...
https://www.youtube.com/watch?v=HuQJKlVxvaM
[14:09:00] <jdh> I still prefer HID beams to LED for underwater. Tightly focused and the temp seems to punch through water better.
[14:09:13] <Jymm> jdh: ah
[14:10:04] <Jymm> SpeedEvil: 1"x2" al tubing might not be bad. Could hold a battery pack too. maybe even waterproof it as well
[14:13:34] <Jymm> jdh: The beam was just too tight for my tastes, didn't know if it had any underwater applications is all.
[14:14:49] <Jymm> SpeedEvil: These are interesting though. saw a 2" one and REALLY bright.
http://www.dx.com/p/hzled-10w-1050lm-6000k-cob-led-white-light-strip-12-14v-291638
[14:15:31] <SpeedEvil> yeah
[14:15:53] <SpeedEvil> spreading it out makes it so you can use most any thin metal as a heatsink
[14:16:09] <Jymm> SpeedEvil: Maybe mount it in a alum U channel and cover with glass?
[14:17:32] <Jymm> That might be a hell of an underhood light when working on the car
[14:17:48] <Jymm> mount to alum strip with magnets on the back
[14:18:29] <Jymm> Just never have eough light when working on the car
[14:20:41] <Jymm> 9 Watts each, could even have four of them =)
[14:22:25] <renesis> meh, china LEDs
[14:22:54] <Jymm> renesis: As opposed to what, australia =)
[14:23:31] <renesis> as opposed to sourcing from domestic distributors from domestic companies, china LEDs work but they usually dont last nearly as long
[14:23:54] <Jymm> renesis: For $3.38 USD, I think I can take my chances.
[14:24:02] <renesis> even if the LEDs were made in .cn, QA is going to be better if through domestic companies
[14:24:28] <renesis> yeah thats not bad
[14:25:21] <Jymm> renesis: Ok, right here in California
http://www.digikey.com/product-search/en?site=us&lang=en&s=38563&s=38562&s=38561&s=38560&FV=fff40008%2Cfff80354&k=Bridgelux&stock=1
[14:25:26] <renesis> do they really say hzled on them?
[14:25:45] <Jymm> I dont think it shows when it's lit though
[14:26:37] <renesis> prob wouldnt do well looking right into them anyway, just kind of annoying
[14:26:39] <Jymm> renesis: click the pic
[14:26:53] <renesis> which?
[14:26:58] <renesis> the digikey search?
[14:27:05] <Jymm> http://www.dx.com/p/hzled-10w-1050lm-6000k-cob-led-white-light-strip-12-14v-291638
[14:27:08] <Jymm> that one
[14:27:24] <renesis> yeah maybe shopped, cant tell
[14:28:17] <Jymm> renesis: No biggy. Just need to find a driver that can do PWM
[14:28:52] <renesis> $.50 avr + some logic fet
[14:29:09] <Jymm> renesis: CC ?
[14:29:17] <renesis> led supply makes some stuff, i think it might be switch mode current regulating, not really pwm
[14:29:36] <Jymm> renesis: difference being?
[14:29:45] <renesis> well, if you put a constant current source on it i guess
[14:29:54] <renesis> take you a couple more transistors
[14:30:00] <Jymm> heh
[14:30:04] <renesis> jymm: money, amount of work?
[14:30:17] <renesis> youll have to program the avr and put it on a board or something
[14:30:31] <renesis> simple enough to deadbug onto some unclad perfboard
[14:30:34] <Jymm> renesis: Constant current stuff kinda throws me a curve
[14:30:47] <Jymm> I get it, but I don't.
[14:30:54] <renesis> for switch mode supplys it just uses a low side sense resistor for feedback
[14:31:02] <renesis> instead of using output voltage
[14:31:11] <renesis> thats literally the only diff
[14:31:26] <Jymm> ah
[14:31:37] <Jymm> just how they sense the current/load
[14:31:47] <renesis> so you set your error amp ref voltage to the sense resistor voltage for whatever current you want
[14:31:53] <renesis> yeah
[14:32:15] <renesis> then you can pwm that to adjust brightness, or change the ref voltage
[14:32:43] <renesis> you can do linear current sinks and sources, too
[14:32:45] <Jymm> renesis: Yeah, I just want it usefu even when bat is down to 10V by lowering the outpur.
[14:32:48] <PCW> efficient constant current requires an inductor
[14:33:08] <Jymm> buck/boost
[14:33:10] <renesis> with a pair of bjt transistor, uses Vbe of one as the current ref, not as efficient, can be sensitive to values
[14:33:23] <renesis> pcw: right because switching supply
[14:33:42] <Jymm> renesis: drivers are plentiful, just need to find the right one for this
[14:34:05] <renesis> jymm: its basically a dc to dc converter so should be very efficient dealing with changing input voltage
[14:34:16] <renesis> compared to some linear vreg and resistor setup
[14:34:36] <renesis> ledsupply has bunch of modules for that size LED
[14:35:04] <Jymm> renesis: Yeah. I just wan the added low voltage features and strobing effects. Thought a arduino might be nice
[14:35:08] <renesis> AC and DC input, adjustable current with external pots
[14:35:26] <renesis> well, avr == arduino to me
[14:35:59] <Jymm> renesis: those tiny's is what I was thinking.
[14:36:02] <renesis> ive never used an arduino, ive done lots of projects on avrs, arduino has lots of shit i dont need for most projects
[14:36:10] <renesis> should learn it for contract type work, tho
[14:36:32] <renesis> yeah, an 8dip ATtiny would work for this
[14:36:48] <Jymm> renesis:
http://www.instructables.com/id/Digispark-DIY-The-smallest-USB-Arduino/
[14:36:59] <renesis> you can stick one of those on a ledsupply module, have the avr do pwm and blinks or whatever
[14:37:13] <renesis> some of the modules have enable inputs that you can pwm
[14:37:43] <renesis> yeah thats not a usb arduino
[14:37:44] <Jymm> renesis: Yep, might be fun with 4 or 6 of those LEd strips
[14:37:53] <renesis> thats just an attiny with a atmel programming dongle
[14:38:02] <renesis> this is kind of why the arduino community pisses me off
[14:38:06] <Jymm> renesis: Yeah, it is. It plugs indirectly to USB port
[14:38:19] <Jymm> space^
[14:38:20] <renesis> yeah, i has it somewhere, good buy
[14:38:45] <Jymm> renesis: I mentioned it for your contracting stuff
[14:39:10] <Jymm> renesis: if you only need 4 pins that is
[14:39:15] <renesis> yeah, ive done stuff like that for people
[14:40:13] <renesis> cnc pcb, a little dip avr and connectors for LED modules or little display for temp or whatever
[14:40:22] <Jymm> renesis: Anyhow, that's what I was thinking for a fun flood light project. Toss on a tripod or universal mount
[14:40:55] <renesis> easiest would prob just be an led supply module and a pot for brightness
[14:41:21] <Jymm> renesis: would that preserve battery life though?
[14:41:24] <renesis> the avr you can add a button and do strobe shit
[14:41:49] <renesis> pretty sure because its constant current buck supply
[14:42:20] <Jymm> at 1100 Lumen, you could PWM (duty cycle) it, and get some nice life out of a battery charge.
[14:42:30] <renesis> you dont kill efficiency when you lower current so should reduce battery usage, but would check idly current of the modules in the datasheet
[14:43:34] <renesis> yeah, ive heard that if you pulse at very high current, percieved light is more than if you were to sustain current at same energy consumption per period
[14:44:03] <renesis> i dunno if thats true or significant enough to matter, kind of gerts into neurology, heheh
[14:44:11] <Jymm> renesis: Only way to detect it is with a video camera that I've ever come across.
[14:44:40] <renesis> oh, yeah that totally depends on a ton of things but it usually does something
[14:44:41] <Jymm> great way to check IR remote controls too =)
[14:44:57] <renesis> haha @ videos of new exotics, their tail lights look like theyre sparking inside or something
[14:45:11] <Jymm> heh
[14:46:01] <renesis> but if you dont perceive the pulsed light as more than sustained light, its a waste
[14:46:35] <renesis> but i think there is retina burn stuff at play, like the light goes away but your optical nerves still stuck a bit
[14:46:43] <Jymm> Well, equal to at (let's say 80% duty cycle, works for me. doesn't have to be "more".
[14:46:48] <renesis> at 50-100hz i would be surprised if this was the case
[14:47:08] <Jymm> could easily play witht he waveform too
[14:47:11] <renesis> right you might not miss the 20% enough to notice its being pulses
[14:47:14] <renesis> pulsed
[14:47:30] <Jymm> yep, while still conversing battery life.
[14:47:50] <renesis> i would try much more agressive duty cycle reduction at higher frequencies
[14:47:58] <Jymm> I'm still interested in a one year LEd light from a single D cell batery
[14:48:06] <renesis> actually, i would prob try and find two or three white papers on it
[14:48:08] <renesis> im sure they exist
[14:48:31] <Jymm> I have a circuit for one. but for red leds
[14:48:47] <renesis> its almost a sociology type project tho, because subjective
[14:49:02] <Jymm> what subjective?
[14:49:12] <renesis> you have to gauge perception of light, heh
[14:49:16] <Jymm> the PWM or one year led?
[14:49:25] <Jymm> ah
[14:49:29] <renesis> so if youre just testing yourself, whatever
[14:49:46] <renesis> but if youre trying to write a peper, you prob want to blind test a bunch of people
[14:50:02] <Jymm> and avoid the seizures too =)
[14:50:17] <renesis> haha, or go the neurology instrumentation route, which sounds expensive and youd still need a bunch of people i would think
[14:50:38] <Jymm> Roof mount of car =)
[14:50:50] <Jymm> drive thru mall =)
[14:51:06] <Jymm> prking lot
[14:51:08] <renesis> right but you would have to do it at least twice and hand out surveys
[14:51:32] <Jymm> Cant I just count the twitching bodies instead?
[14:51:56] <Jymm> flopping on the ground
[14:51:56] <renesis> well, you need to figure out if pulsing or sustained makes more bodies twitch
[14:52:03] <Jymm> ah
[14:52:08] <renesis> so i guess you can do without surveys but youd still need to do it twice
[14:52:15] <renesis> and i guess get more people the second time
[14:52:21] <Jymm> lol
[14:53:19] <renesis> yeah i dont know if we see like we hear
[14:53:43] <renesis> if we do, pulsing at higher brightness might have the opposite effect
[14:54:10] <renesis> like, if we see amplitudes on a log scale for dynamic range
[14:56:20] <renesis> like, twice as bright in terms of energy might be barely perceived type of thing, in which case high current at lower duty is likely fail
[14:57:03] <zeeshan> https://www.flickr.com/photos/128539016@N05/15859311377/
[14:57:04] <zeeshan> yea baby
[14:57:06] <zeeshan> wiring coming together
[14:57:55] <renesis> what did you decide to do for the IEC on the drivers?
[14:58:03] <zeeshan> i ordered the right angle cable
[14:58:10] <zeeshan> it should be here today
[14:58:14] <zeeshan> its on the fedex truck
[14:58:16] <renesis> the monoprice 14awg stuff?
[14:58:34] <Rab> zeeshan, I'm curious why you didn't rotate the driver breakout 90 degrees.
[14:59:03] <zeeshan> what driver breakout
[14:59:07] <zeeshan> theres a lotta drivers in this thing
[14:59:09] <zeeshan> :P
[14:59:12] <zeeshan> renesis: no
[14:59:15] <zeeshan> i ordered real cable from digikey
[14:59:20] <jdh> my new Titanium bike is on the truck for delivery
[14:59:27] <Rab> The thing with the green terminals you ordered the RA adapter for.
[14:59:33] <renesis> for iec its prob same shit from china
[14:59:57] <renesis> but yeah, prob finem better than those shells
[15:00:17] <zeeshan> the mesa card
[15:00:29] <zeeshan> rab there used to be a card that used to be there
[15:00:30] <PetefromTn_> what size was that spindle drive again?
[15:00:34] <zeeshan> thats why
[15:12:09] <zeeshan> PetefromTn_: sorry didnt think you were talking to me
[15:12:10] <zeeshan> lol
[15:12:21] <zeeshan> thats the 10hp 3 phase one
[15:12:26] <PetefromTn_> OK
[15:12:44] <zeeshan> its a copy of the hitachi.
[15:12:45] <PetefromTn_> that's the sumitomo or whatever you were talking about
[15:13:07] <zeeshan> im pretty sure the L300P by hitachi
[15:13:13] <zeeshan> and HF430 by sumitomo
[15:13:18] <zeeshan> are made by the same company
[15:13:25] <zeeshan> the manuals are almost exactly the same.
[15:13:33] <zeeshan> http://d2804cwrfcn5gd.cloudfront.net/image/image/data/products/hitachi/vfds/hitachi-vfd-l300p-series-700x700.jpg
[15:13:36] <zeeshan> compare that with mine
[15:13:56] <zeeshan> all the labels are in the same place
[15:13:58] <PetefromTn_> what HP motor are you running it with?
[15:14:00] <zeeshan> the mounting dimensions are the same
[15:14:04] <zeeshan> 5hp
[15:14:08] <PetefromTn_> OK
[15:14:17] <PetefromTn_> and how much was it if you don
[15:14:21] <PetefromTn_> don't mind me asking
[15:14:39] <zeeshan> http://www.ebay.ca/itm/Sumitomo-VFD-AC-1-Phase-5-HP-Max-3-Phase-10-HP-Max-200-240-Volts-/181559186612?pt=LH_DefaultDomain_0&hash=item2a45c554b4
[15:14:44] <zeeshan> i bought it from there
[15:15:32] <PetefromTn_> damn that is reasonable
[15:15:53] <PetefromTn_> I shall be interested to see how you get on with it once it is working.
[15:16:19] <zeeshan> hopefully in a week or two
[15:16:41] <PetefromTn_> I am trying to decide if I should go with a 5HP or 7.5HP spindle motor on the lathe the latter will cost a good bit more to purchase and power
[15:17:10] <zeeshan> all depends on what you wanna do
[15:17:14] <jdh> is the lathe beefy enough to use 7.5hp?
[15:17:16] <zeeshan> the 3hp motor i have on the lathe
[15:17:25] <zeeshan> will stall out at a .5" doc
[15:17:26] <PetefromTn_> the lathe came with a 7.5hp motor
[15:17:27] <zeeshan> in 6061
[15:17:39] <zeeshan> at 6 ipm
[15:18:24] <PetefromTn_> it was an option apparently the standard motor was 5hp
[15:23:30] <PetefromTn_> but the machine's serial number plate indicates it came with the larger motor.
[16:10:51] <Tom_itx> ick. snow
[16:18:51] <Deejay> gn8
[16:22:34] <andypugh> PCW: I got one of those 3W PCB-mount switchmode PSUs for the clock project.
[16:23:52] <andypugh> It seems to be a failure for that application. When the antenna amp is powered from the switcher (even with all the suggested caps around it) the antenna never gets a clean signal.
[16:24:10] <andypugh> So, I guess it puts noise in the 60kHz band.
[16:26:07] <PCW> Yeah probably quite a noise radiator
[16:26:46] <andypugh> I suspect I would be better off with a linear regulator running off the 25-ish V rectified power.
[16:27:14] <andypugh> (the probelem there being keeping that supply clean/alive when the solenoids pulse)
[16:27:28] <Tom_itx> big caps
[16:27:40] <Tom_itx> i had to do that when i was using a polaroid sonar sensor
[16:27:59] <Tom_itx> 1k F or so
[16:28:48] <Tom_itx> every time it pinged the C would reset without the cap
[16:29:04] <andypugh> The problem here is that I _really_ want to avoid caps beacause they die, and this thing is planned to last decades.
[16:30:42] <Tom_itx> well any regulated supply is going to require some sort of caps
[16:30:54] <Tom_itx> whether it's smps or linear
[16:31:10] <Rab> Yeah, I don't think that's something you can avoid. Just use quality name-brand caps, well-derated for the working voltage.
[16:32:00] <Rab> Caps die when they're poorly made or poorly specced. Derated, high-reliability types should last as long as anything else.
[16:32:10] <Jymm> andypugh: soild caps?
[16:32:38] <Jymm> andypugh: Heh, MAKE your own caps =)
[16:33:16] <Rab> For longevity, I would choose a linear regulator with diode protection and lots of bulk capacitance over a SMPS. I've seen lots of examples of that topology last for 40 years and counting.
[16:33:20] <Tom_itx> a bunch of largish ceramics in parallel may last longer than electrylytic
[16:33:50] <Rab> Film caps should last forever. Bulk and expense for serious capacitance are the downsides.
[16:33:57] <andypugh> The mica cap on the magneto of my Ner-a-car is 90 years old and still works. But it is mica and copper sheets rivitted together.
[16:34:07] <Tom_itx> he
[16:34:08] <Tom_itx> heh
[16:34:41] <Jymm> andypugh: Did you try at night?
[16:34:42] <Tom_itx> i wonder if it's still in tolerance
[16:35:25] <andypugh> I only need 50mA @ 5V.
[16:35:31] <Jymm> andypugh: Did you use torroids ?
[16:35:50] <Jymm> to reduce the emi/rfi
[16:36:15] <cradek> you can get by with tiny (non-electrolytic?) caps if you use a pi filter with an inductor
[16:36:36] <andypugh> I am using a toroid as the 24V power stage, that’s been working fine for about a week. I only tried making the 5V supply today.
[16:37:31] <Jymm> andypugh: Can you actually see/hear the signal?
[16:38:21] <andypugh> If I swich to the desktop supply it gets a clock synch. If I swap back to the little onboard supply, it loses it.
[16:39:08] <Jymm> andypugh: What if you use the desktop, but have the inboard powered up?
[16:39:13] <Jymm> onboard*
[16:41:04] <Jymm> andypugh: and couldn't you use a Lm7805 instead of a seperate PS ?
[16:42:24] <andypugh> I probably could, and I was going to, but at 100Hz you still need a pretty big cap.
[16:47:09] <andypugh> I probably need to charge a cap to 40V from the 24V side, but through a diode so it doesn’t die when the solenoid pulse happens.
[16:51:42] <Jymm> andypugh: How far is the antenna from the Rx?
[16:52:23] <andypugh> About 2”
[16:52:34] <Jymm> Then why do you need an amp?
[16:52:49] <andypugh> The Rx is the amp
[16:53:00] <andypugh> The output from the amp is TTL logic.
[16:53:24] <Jymm> so it's not a Rf signal amp
[17:03:21] <andypugh> It’s this:
http://www.pvelectronics.co.uk/index.php?main_page=product_info&products_id=2
[17:03:54] <Jymm> Oh, AM
[17:04:13] <andypugh> I think that RF noise up the power supply wires is likely to be the problem.
[17:04:44] <Jymm> andypugh: and the leads twisted?
[17:04:50] <Jymm> are*
[17:04:55] <andypugh> Yes
[17:05:39] <andypugh> The A-B-A test on the pwer supply seems to suggest that that is the problem, I will just build a linear one.
[17:05:53] <Jymm> andypugh: All I could suggest is make a AM antenna out of hookup wire and use a shielded feedline
[17:06:01] <Jymm> k
[17:08:05] <Jymm> andypugh: I hate those ferrite antennas (in the link)
[17:08:40] <andypugh> You think I should make a half-wave antenn?
[17:09:22] <Jymm> andypugh: hookup wire coiled around a plastic 8" or so tube I thinkg would be better than that thing
[17:09:56] <andypugh> That “thing” works fine.
[17:10:07] <Jymm> or any torm you could come up with, even plywood
[17:10:11] <Jymm> form*
[17:11:22] <Jymm> andypugh: Heck two sticks even...
http://i15.photobucket.com/albums/a384/PaulCoats/PaulsUltimateLoopE.jpg
[17:11:58] * JT-Shop carried home a rather large spanner 3" on one end and 3 3/8" on the other end
[17:12:08] <PCW> you may need higher input voltage regulator that a 7805
[17:12:08] <andypugh> I looked into it. But you need a _lot_ of wire for 60kHz
[17:12:38] <Jymm> andypugh: You are just Rx, not Tx. You don't need to get exactly half or qtr wave
[17:13:50] <andypugh> PCW: I would have to check the specs, certainly. And the PowerPax is a neat little thing for another project.
[17:14:59] <Jymm> andypugh: Great gp antenna, and can even Tx on the 144/440MHz bands
http://www.maplin.co.uk/p/scanking-discone-antenna-qt28f
[17:15:18] <Jymm> andypugh: Not a lot of gain, but wide bandwidth.
[17:15:35] <PCW> 7805s are 35V max so series zener or different regulator
[17:15:36] <Jymm> well zero gain actually =)
[17:15:57] <andypugh> Jymm: 60 k Hz !
[17:16:13] <andypugh> That’s a 25 MHz antenna
[17:16:14] <Jymm> andypugh: Yes, and that one goes down to 25Mhz
[17:16:25] <Jymm> andypugh: up to 1500MHz
[17:16:44] <andypugh> So only 3 orders of magnitude too high?
[17:17:07] <Jymm> andypugh: it's a broad band antenna, 25 to 1500 MHz
[17:17:24] <andypugh> Yes, and 60kHz is _way_ outside that broad band.
[17:17:43] <Jymm> andypugh: Anyhow, just make an antenna like the pic
[17:17:51] <Jymm> oh Kilo.
[17:18:00] <andypugh> And, that ferrite is tuned to 60kHz (fixed) for the job at hand.
[17:18:19] <Jymm> andypugh: For Rx, it's not that big of a deal, really.
[17:18:45] <Jymm> Tx is another story.
[17:18:53] <andypugh> I think that the ferrite might be the only tuner in the set.
[17:19:15] <Jymm> andypugh: Just try it,
[17:19:19] <andypugh> (Ah, no, there is a crystal on the oard isn’t there)
[17:19:37] <andypugh> How many times do I have to say that it works as it is?
[17:19:42] <Jymm> solid hookup wire, the more coild you have the better the gain
[17:19:59] <Jymm> andypugh: it might overcome your RFI issue
[17:21:41] <Jymm> The larger the loop the better, but 6-12" should be good.
[17:27:43] <MacGalempsy> heller
[17:39:57] <PetefromTn_> Hey mac
[18:06:28] <anonimasu> PCW: got both axes working now(alot of tuning left)
[18:07:20] <anonimasu> I've got a question for you, I have some 9v encoders can i hook them up into the 7i47
[18:07:51] <PCW> for torque mode drives you probably need to set your servo thread as fast as you can go
[18:07:57] <CaptHindsight> gadzooks, gas is down to $2.07/gal here today
[18:08:00] <The_Ball> Not strictly on topic, but I did use LinuxCNC to make the brackets:
https://wigen.net/owncloud/public.php?service=files&t=9a47cf8bec07e60daea0ecdb7ddc93d5 and
https://wigen.net/owncloud/public.php?service=files&t=75248e8a4fcc084a7906a7855ed7b08c
[18:08:22] <Jymm> CaptHindsight: Please, take this perosnally... FUCK YOU! lol
[18:08:35] <PCW> Single ended 9V?
[18:08:52] <anonimasu> yeah
[18:09:12] <Jymm> CaptHindsight: (I say the same thing to the gf when she fills her tank for $20)
[18:10:02] <CaptHindsight> <$2/gal in Tulsa
[18:10:19] <PCW> if you disable the 7I47 input terminationa and tie the -inputs to 5V it _should_ work
[18:10:31] <Jymm> CaptHindsight: Usually $75 for me on avg
[18:10:33] <anonimasu> it wont fry will it?
[18:10:42] <PCW> well.....
[18:11:38] <Jymm> CaptHindsight: If it got to $1.99, I'd be there with 55gal drums in the back =)
[18:11:55] <anonimasu> it says 12v, common mode voltage, but I am bad with opamps
[18:12:16] <CaptHindsight> Jymm:
http://www.gasbuddy.com/gb_gastemperaturemap.aspx
[18:12:19] <PCW> inputs are rated abs max +-25V
[18:12:40] <CaptHindsight> Jymm: you get the nice weather, we get cheap gas
[18:12:50] <anonimasu> as long as I wont kill the board I will manage to get that working(I have 9v for the other encoders also)
[18:13:17] <anonimasu> but only as VCC for them, the signal is a differential signal
[18:13:47] <PCW> 5V is close to the ideal 4.5V (1/2 way)
[18:14:07] <Jymm> CaptHindsight: Heh, I hit safeway as we get up to $1 off per gallon based on grocery purchases.
[18:15:17] <anonimasu> PCW: I had noise issues at first for the stegmann encoders, until I put a 50ohm resistor on both of the wires(as the diff receiver circuit in the stegmann docs
[18:15:20] <Jymm> $2.59 right now.
[18:15:39] <Jymm> anonimasu: twisted leads?
[18:15:41] <anonimasu> yep
[18:15:44] <Jymm> k
[18:15:52] <anonimasu> (this is a pre-built table with fried control)
[18:15:58] <Jymm> ah
[18:16:03] <anonimasu> but for the electrical box(inside)
[18:16:41] <Jymm> CaptHindsight: I need PropaneBuddy website =)
[18:17:26] <anonimasu> so signal in on the RXx (The 9v one) and then 5V on RXx/
[18:19:06] <anonimasu> and gnd, between the encoder powersupply and the 7i47
[18:19:34] * anonimasu will read in tomorrow
[18:19:35] <anonimasu> goodnight!
[18:42:41] <Tom_itx> PCW what's a good value for an open collector pullup to a mesa board IO?
[18:42:53] <Tom_itx> 220 enough?
[18:43:09] <Tom_itx> 1k?
[18:43:39] <PCW> FPGA I/O ?
[18:44:02] <Tom_itx> i think those will go to the 7i47
[18:44:09] <Tom_itx> or one of the SSERIAL boards
[18:44:19] <Tom_itx> more than likely the 7i47
[18:44:37] <PCW> what is the pullup for?
[18:44:49] <Tom_itx> the encoder is open collector output
[18:52:58] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/cnc/new_pulleys/Nemicon%20OME%20Encoder.pdf
[18:53:06] <Tom_L> there's the pdf on them
[18:54:03] <Tom_L> iirc i used 1k when testing on an avr
[18:59:23] <jdh> it is possible to align the electric zero with.
[19:06:14] <renesis> tom_l: looks like you have to go by the max output current spec
[19:07:02] <renesis> R_min = V_psu / 20mA
[19:07:26] <renesis> also this datasheet sucks
[19:07:42] <Tom_L> 5v supply
[19:08:05] <renesis> its like they copy pasted hiroses name without stripping font format, and their supply voltage spec does not make sense
[19:08:30] <renesis> they have voltages listed one over the other, but they have three device columns over the spec column
[19:08:38] <Tom_L> they did get it translated to english though
[19:08:45] <jdh> kind of.
[19:08:47] <renesis> p/n clears that up
[19:08:56] <jdh> it is possible to align the electric zero with.
[19:09:04] <SpeedEvil> jdh: what?
[19:09:10] <Tom_L> wtf does that mean?
[19:09:11] <jdh> that's in the data sheet
[19:09:47] <jdh> could just mean 'has index'
[19:09:59] <renesis> Z looks like the index pulse
[19:10:11] <jdh> it is, but still odd wording.
[19:10:18] <jdh> 7i47 is differential only?
[19:10:36] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/motors/focusring12.jpg
[19:10:43] <Tom_L> there's the PN
[19:11:08] <Tom_L> OME-500-2MCA
[19:11:45] <renesis> anyway, 250R is is R_min, use like 2.2k
[19:11:50] <Tom_L> jdh i'm using resistors on it for single ended
[19:12:30] <Tom_L> on some of it anyway
[19:13:04] <jdh> makes me confused though.
[19:15:01] <jdh> so, a pullup on one side and a voltage divider on the other?
[19:15:10] <Tom_L> that's the plan
[19:15:48] <renesis> yeah i would verify the input circuit first
[19:16:39] <renesis> it most likely has an input resistor or input bias to keep from floating, your divider is going to be in parallel with that
[19:17:16] <Tom_L> i'll try it without first but i had to add some pullups on the avr
[19:17:17] <renesis> input resistance is likely high z, so if you devider resistance is low it prob works, or gets you close enough
[19:17:40] <renesis> well yeah i dont think those encoders will work without pullups
[19:17:49] <Tom_L> me either
[19:18:13] <renesis> maybe, but the Vhigh being blank prob means its just open collector
[19:18:28] <renesis> V high is basically whatever is on other side of the pullup
[19:18:48] <renesis> avr just has general purpose inputs, tho
[19:18:51] <Tom_L> or it would vary depending on the input voltage
[19:19:03] <renesis> something with diff input prob has a proper analog input circuit
[19:19:06] <renesis> maybe
[19:19:10] <Tom_L> maybe some models are 10-13v
[19:19:17] <Tom_L> the one i have is 5v
[19:19:37] <renesis> but like, if the diff input has center biased inputs, you prob dont need to do anything on the floating side
[19:20:19] <renesis> if its bipolar input, and ground referenced through a resistor, maybe doesnt work unless pulled up but you can prob just get away with resistor same value as grounding input resistor
[19:21:04] <renesis> if its just inputs floating in space, simple divider will work
[19:22:09] <renesis> kind of depends how 'analog' the diff input is, traditionally speaking
[19:22:54] <renesis> is maybe bipolar optocoupler inputs, in which case almost anything works if enough current
[19:40:26] <XXCoder> https://scontent-b-sea.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/1656428_10203155939840620_4853552006783639998_n.jpg?oh=cebba0a20c28850ce945a7a916ce9b2e&oe=54FC9F92
[19:40:38] <XXCoder> love that pic heh
[21:52:26] <furrywolf> is there an easy way to get the latency test program without downloading the entire 1.1gb dvd? I want to see if a system will work, but downloading something that large is out of the question on my connection.
[21:53:40] <skunkworks> do you already have a linux system running?
[21:53:46] <furrywolf> I'm guessing not easily, since it probably needs the right kernel etc, but I figure I should ask before giving up. :)
[21:54:46] <furrywolf> I have debian's mini install cd... was going to install it, then figured it'd be better to start with the linuxcnc version... then found out it was 1.1gb!
[21:55:17] <furrywolf> I have linux on this box, but that doesn't help much. :)
[21:58:29] <XXCoder> I wish linuxcnc come in puppylinux edition or something
[21:58:33] <XXCoder> tiny and fast
[21:58:52] <XXCoder> if you has know how you can modify some small linux disto to support linuxcnc
[21:59:13] <furrywolf> I want to run the mill off an older Toughbook... but laptops seem to often have jitter issues. I couldn't find any hard test results from a toughbook, just a couple threads suggesting it works fine but that sounded like they were from people who haven't actually done it...
[21:59:35] <furrywolf> so want to run the latency test before I go through the work of trying to get a 1.1gb file.
[22:00:08] <XXCoder> torrent might help?
[22:00:12] <furrywolf> (so I can start planning on a single-board computer or such now, instead of later)
[22:00:26] <furrywolf> torrent won't magically make my connection ten times faster and ten times cheaper, sadly.
[22:00:41] <furrywolf> (3g with weak signal and high data charges)
[22:02:20] <XXCoder> I know it wont
[22:02:30] <XXCoder> ohh per mb charges
[22:02:33] <XXCoder> that sucks
[22:02:40] <XXCoder> what about some sneakernet
[22:02:49] <XXCoder> if you know someone with good net access
[22:02:50] <furrywolf> I probably should just stop avoiding driving to town and getting someone else to download it.
[22:03:09] <XXCoder> hmm car. carnet ;)
[22:03:42] <furrywolf> never underestimate the bandwidth of a vehicle filled with drives. :)
[22:04:01] <XXCoder> yeah driviong in car with drives
[22:04:13] <XXCoder> driving drive filled car
[22:05:41] <furrywolf> let's see... a 128gb microsd card weighs, what, 1g? figure my subaru can hold 500kg easily... that's 61 petabytes. even if I drive across country, in three days, that'd still be 2tb/sec or something.
[22:05:55] <XXCoder> its faster by mailnet
[22:06:14] <FinboySlick> furrywolf: You better have a heck of a USB hub at each end though.
[22:06:19] <furrywolf> lol
[22:08:21] <furrywolf> I really want to make this toughbook work... my current mill runs off an old p3 laptop with flashcut's proprietary box, that I'd like to use for target practice rather than milling, and my new mill has no controller yet...
[22:08:47] <XXCoder> I wonder if raspberry pi is powerful enough :P
[22:09:08] <furrywolf> I don't know if arm even has compatible rt extensions...
[22:09:16] <XXCoder> probably not
[22:09:39] <XXCoder> though it probably can directly control drivers
[22:09:46] <FinboySlick> Wasn't someone here working on a beagleboard black port?
[22:10:28] <furrywolf> new mill is still in the project stage (I have motors... pulleys... belts... drivers... a breakout board... power supplies... cables... none of which are connected to each other in any way), so getting a working computer isn't a huge rush, but it'd be nice.
[22:10:49] <XXCoder> my project is stalled. :( lack of willpower
[22:11:37] <FinboySlick> furrywolf: Small amd APU boards are apparently very good (and cheap). Get a little mesa card if you really want it rockin'.
[22:11:50] <furrywolf> this'll be my beefiest cnc project yet... 940ozin steppers running at 9A/phase...
[22:12:14] <furrywolf> FinboySlick: cheap is very high on the priority list right now, and last I checked nothing mesa was cheap.
[22:12:37] <XXCoder> how do you guys keep working pon project?
[22:12:53] <FinboySlick> furrywolf: 6i25 is under 100$ and all you need for a project like yours.
[22:13:40] <furrywolf> I also really want laptop control, as due to lack of space in the shop (in reality, a storage unit), the mill is on a roll-around cart...
[22:14:13] <furrywolf> I was thinking a single-board computer in the driver box with the ui on the laptop if I had to, but I hope not to.
[22:16:34] <furrywolf> oh well, I'll see if tomorrow I can find a way to get the full dvd.
[22:17:32] <XXCoder> yeh good luck :)
[22:18:14] <furrywolf> even if it's not ideal, it'll give me something to drive the breakout board enough to test drivers, etc.
[22:18:21] <furrywolf> got some well-used cn0165s...
[22:19:18] <furrywolf> toughbooks are a bit odd, so I have no idea if they'll perform closer to a desktop or not.
[22:19:52] <furrywolf> rather than being designed for compactness and long battery life, they were designed so they could be repurposed as a hammer, while running...
[22:20:58] <furrywolf> it's also nice to be able to clean the chips off the keyboard with a garden hose.
[22:21:51] <unfy> heh
[22:22:25] <furrywolf> I was washing one off once when the mailman showed up to deliver a package... the look on his face was utterly priceless.
[22:23:36] <unfy> i was gonna do an amd itx board, but a coworker has a lot of p3/p4 era systems. so i handed him the linuxcnc live disc and he went around to his diff systems. a tyan amd dual athlon mp system had good numbers but physical problems. instead i he fed me an amd 2800mp system. it gets 10100/10100 jitter timings after 5 days
[22:24:01] <unfy> we've done a bit of work on some tough books, they are indeed neat.
[22:24:22] <furrywolf> tried a latency test on one? I have a cf-29 and a cf-30.
[22:24:27] <unfy> anyway, so i through $20 at my coworker for the system
[22:24:49] <unfy> we don't have any around at the moment. been a couple years since i've seen one in the shop
[22:25:08] <unfy> threw.
[22:25:46] <furrywolf> I'm really trying to avoid the space requirement of a desktop system... I have several p3 systems I could use, but I want to take them to the recycling center, not mount one to the mill.
[22:26:23] <furrywolf> though I'll probably try giving them away on craigslist before scrapping them... _someone_ has to want a dual p3-800!
[22:27:20] <unfy> the size of this case should let me get breakout board and drivers inside of the case. the 4pin microphone / cb jacks should mount easily, and if i really wanted - bolting a 13-17" touch screen to the side of the case would be easy enough.
[22:28:14] <furrywolf> I'm using anderson powerpoles for the steppers... bulky, no shield connection, but should reliably handle 9A/phase... I just don't trust those little cannon knockoffs for more than a couple amps.
[22:28:38] <furrywolf> (powerpoles being good for 45A gives a nice margin of error)
[22:29:28] <unfy> i won't be anywhere near even 10a on this current system myself heh... opposite side of spectrum
[22:29:56] <unfy> i pasted your p3 / cl / etc comments to coworker (across cubicle) - he's curious where you are heh
[22:30:26] <unfy> and 'thats bullshit' (he's a hairy bastard, had chewbacca as a nickname for a while)
[22:30:41] <unfy> we're near omaha, ne - btw.
[22:30:46] <furrywolf> what's bullshit?
[22:30:54] <furrywolf> far northern californa here.
[22:31:14] <unfy> bullshit - that the two of you sound similar - and with your name matching his physical desrciption etc.
[22:31:59] <furrywolf> tell him that my nick doesn't say furry because of hair ammount, and see what he says. :P
[22:32:00] <unfy> granted, i opened my question to him 'am i talking to you on irc right now' :P
[22:33:02] <unfy> "i got nothing", "why are we having this conversation"
[22:33:08] <furrywolf> lol
[22:34:10] <furrywolf> this is a mid-sized mill/lathe combo... a Shoptask chinese 3-in-1 machine... kinda like the one harbor freight/etc sells, but twice the size. about 2ft X travel and 1ft Y, but only 3" Z.
[22:34:16] <furrywolf> dual 1hp motors
[22:34:34] <furrywolf> sec, I took a picture a while ago... have it somewhere...
[22:35:01] <unfy> *drool*
[22:35:04] <furrywolf> http://fw.bushytails.net/shoptask02.jpg looks like that.
[22:35:13] <unfy> i need to get my own house with garage or workshop ._.
[22:36:07] <furrywolf> I have it in a rental storage unit... both no space for it here, and the floor wouldn't support it.
[22:36:41] * SpeedEvil waves at furrywolf.
[22:36:48] <furrywolf> meep!
[22:38:09] <furrywolf> it may be chinese, but it's still 700lbs of chinese steel. heh.
[22:38:39] <furrywolf> my sherline is the opposite... I can easily lift it over my head with one arm.
[22:38:58] <furrywolf> driver box and laptop included
[22:39:35] <unfy> i'd be a bit... weirded out about bigger chinese stuff. the old addage 'china on the label, shit on the table' seems to be more and more true as i fiddle with more and more stuff ._. ---- i dunno if big hunks of chinese steel have room to be bad or not etc
[22:40:24] <furrywolf> dunno... but it was $100, which put it within my budget.
[22:40:39] <unfy> $100 makes it a worthy buy no matter what :D
[22:40:59] <furrywolf> I've fixed most of its problems... the bent X axis leadscrew requires filling my oxytorch tanks first though.
[22:41:11] <SpeedEvil> Did it come that way?
[22:41:44] <furrywolf> yes. apparantly someone kocked it over with a forklift, or something like that... the guy I got it from was a bit hazy on the story.
[22:42:33] <furrywolf> most of the damage was repaired by the previous owner, or was entirely cosmetic...
[22:43:01] <furrywolf> I still need to fab a new lathe motor belt tensioner, and fix the leadscrew.
[22:43:24] <furrywolf> only the very end is bent, outside of the bearing. the threaded part runs true.
[22:43:49] <FinboySlick> furrywolf: The main issue with bigger china steel is that it gets tricky to actually fix them. You can't just lap surfaces on a little surface plate or what not.
[22:44:23] <FinboySlick> You need large and fairly expensive reference surfaces, precision squares and levels.
[22:44:40] <furrywolf> I don't expect it to ever hold tolerances nearly tight enough to require lapping parts.
[22:44:43] <furrywolf> it seems sloppy by design.
[22:45:36] <furrywolf> the rack and pinion Z drive seems to suck by design, for example...
[22:46:44] <furrywolf> the bracket holding the x axis nuts to the saddle has a stuipdly large amount of flex...
[22:47:39] <furrywolf> the leadscrew is several inches below it... so they have a big C-shaped bracket that screws to it and holds the nuts... the C shape means it twists every time you put any load on it.
[22:50:10] <furrywolf> it is what it is... cheap! I'm not expecting any precision work from it.
[22:52:28] <SpeedEvil> Still rather better at making round things than a file.
[22:53:23] <furrywolf> yes, that it is.
[22:53:47] <furrywolf> for example, it's made an excellently round hole I can throw money into trying to make it cnc! heh
[22:54:13] <FinboySlick> furrywolf: Great way to build experience.
[22:54:30] <SpeedEvil> :)
[22:55:58] <furrywolf> I've spent three times as much just on steppers, drivers, and associated bits as I did on the machine.
[22:56:17] <furrywolf> got some 940ozin pacsci steppers and centent cn0165 drivers.
[22:56:48] <furrywolf> I had two 24V 25A power supplies, to make 48V (closer to 54-56) 25A to power them...
[22:59:11] <furrywolf> just bought some flexible shielded wire, some small filter taps to put at the drivers, a coke can filter cap to put on the supply, a 24v-5v dcdc (running a usb cable for the breakout board's power just seems stupid!), and other bits costing even more money...
[22:59:20] <furrywolf> s/taps/caps
[23:03:40] <furrywolf> the steppers are reasonably low inductance, so I'm hoping with the high power supply voltage, I can get enough rpm to make up for the fine-pitch leadscrews.
[23:10:09] <furrywolf> bbl, wolfy bedtime
