#linuxcnc | Logs for 2016-05-24

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[02:46:16] <Deejay> moin
[03:24:20] <FloppyDisk> soon gn8
[03:24:52] <FloppyDisk> ugh, my video driver crashes, then solidworks:-(
[03:26:04] <FloppyDisk> reboot - do it again in the am...
[08:20:39] <maxcnc> hi all from a rainy germany
[08:22:34] <maxcnc> till later
[08:38:03] <Encxapsulation> "Applicable materials for cutting : paper, slim wood sheet, sticky note and pearl wool."
[08:38:04] <Encxapsulation> lol
[08:38:14] <Encxapsulation> sticky notes, now that is a capable machine
[10:14:16] <maxcnc> hi
[10:15:12] <maxcnc> not many traffic here today
[10:15:23] <maxcnc> or the logs are fail
[10:15:51] <maxcnc> still wet weather here in Germany near french boarder
[10:17:11] <maxcnc> to be continuead ;-)
[11:02:49] <Deejay> re
[11:22:18] <jdh> Loetmichel: the aluminum came out pretty good on the 6040.
[11:23:29] <Loetmichel> jdh: i did say that it is capable of aluminium. ;)
[11:24:18] <jdh> could have done much more aggressive cuts.
[11:24:36] <jdh> I used the 2mm 3-flute
[11:25:37] <Loetmichel> the more agressive you get the less accurate your work is on the 6040
[11:25:45] <Loetmichel> its gantry bends quite easily ;)
[11:25:57] <Loetmichel> especially in y direction
[11:40:49] <jdh> I'm going to try some .25" tonight
[12:07:44] <maxcnc> hi long day is nearing end of work
[12:11:46] <jdh> not here
[12:12:07] <archivist> not seen any work in weeks
[12:12:18] <maxcnc> ;-)
[12:52:06] <jdh> work is highly over-rated. getting paid is not.
[12:53:08] <Polymorphism> indeed
[12:53:49] <djdelorie> one of the benefits of doing this as a hobby. One less thing to stress over :-)
[12:54:29] <Polymorphism> Loetmichel, do you attribute this bending to the gantry sides and frame, or the round possibly unsupported rails
[12:55:12] <Polymorphism> jdh, is your rail supported
[12:55:17] <Polymorphism> the horizontal rail
[12:55:19] <Polymorphism> on the gantry
[12:55:38] <Polymorphism> I know its probably the round style but it looks like some are screwed in all the way along
[12:55:39] <Polymorphism> and some hang
[12:55:41] * djdelorie assumes it's attributed to being aluminum instead of steel
[12:56:05] <maxcnc> Polymorphism: supported are only soe more expensiv
[12:56:14] <maxcnc> sbr vs TBR
[12:56:21] <maxcnc> consider load
[12:56:22] <Loetmichel> djdelorie assumes wrong
[12:56:34] <Loetmichel> the usual 6040 has no supported rails in the gantry
[12:56:51] <Loetmichel> just two 20mm thick round bars with ball bearing slides on them
[12:56:55] * djdelorie guessed based on my own mill, which bends due to being wood
[12:57:23] <Loetmichel> which bend quite a bit before the Aluminium sides even move a thou
[12:57:57] <djdelorie> heh, I have 25mm bars but the wood bends way before the bars do
[12:58:48] <Polymorphism> Loetmichel, is the problem not so much that its round, but unsupported?
[12:58:51] <Polymorphism> is it this: http://www.mycncuk.com/attachment.php?attachmentid=16151&stc=1
[12:58:58] <Polymorphism> instead of this: http://g02.a.alicdn.com/kf/HTB1edpNIXXXXXbnXFXXq6xXFXXXT/New-SBR16-rail-L580mm-16mm-linear-round-guide-cnc-router-part-linear-rails-for-SBR16UU.jpg
[12:59:10] <Loetmichel> unsupported IS the problem
[12:59:28] <Loetmichel> yes
[12:59:29] <djdelorie> mine are unsupported too
[12:59:48] <Polymorphism> ok, I understand now
[12:59:51] <djdelorie> my next cnc will have supported rails. Probably still wood, though. I'm a sucker for punishment.
[13:00:11] <Loetmichel> djdelorie: wood is not a problem
[13:00:17] <Loetmichel> if you do the right construction
[13:00:19] <djdelorie> properly designed, no
[13:00:21] <Loetmichel> you have to box it
[13:00:24] <djdelorie> yup
[13:00:37] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11205
[13:00:44] <djdelorie> the main table is a box setup, it's the risers for the gantry that aren't
[13:00:58] <djdelorie> http://www.delorie.com/photos/cnc/img_2525.html
[13:01:05] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11172 <- the gantry has a back "lild" now
[13:01:13] <Loetmichel> to make a box there, too
[13:01:32] <djdelorie> yeah, I need to redo that part your way
[13:01:47] <jdh> mine is supported round rail
[13:02:04] <Polymorphism> jdh, yours looks like my 2nd link on the horizontal (Y?) axis?
[13:02:14] <Loetmichel> jdh: for the gantry or just for the main y rails?
[13:02:25] <djdelorie> mine was surplus, I used what was available and was happy about it :-)
[13:02:51] <Polymorphism> http://tbimgb.bababian.com/upload7/cncbase/201503/001159065571.jpg on a pic like this I can see the bottomr ound rail
[13:02:53] <Polymorphism> doesnt need to be supported
[13:03:02] <Polymorphism> but the rail on the gantry would be supported, ideally I think
[13:03:04] <jdh> I thought they both were, but I could be mistaken
[13:03:35] <Polymorphism> I can't see it though because the pics of these machines the gantry plate covers it
[13:05:01] <djdelorie> one of the purposes for my first mill is... to build the second mill! HA HA HA HA!
[13:05:14] <maxcnc> Polymorphism: you you consider selfmaking now
[13:05:48] <Polymorphism> maxcnc, I've considered it but I'm not convinced I would save that much money when I add up everything and add the time
[13:06:03] <Polymorphism> I'd probably rather pay a little extra and have it ready to go, spend the time learning to machine
[13:06:14] <jdh> https://imgur.com/JmWDvNi
[13:06:19] <maxcnc> you shoudt be running 2 weeks ago if you orderd at first weks end
[13:06:25] <jdh> looks like just rails on x
[13:06:32] <jdh> 2 months
[13:06:51] <Polymorphism> 3
[13:07:06] <maxcnc> jdh: i did a full constr on his need and now sold 6 routers since
[13:07:08] <Polymorphism> jdh, do you have a pic from behind the cover plate of the gantry
[13:07:34] <Loetmichel> btw: supported rails are of no use if there is only a 2mm sheet metal behind them where there are bolted to.
[13:07:51] <maxcnc> jdh: http://bossert-veranstaltungsservice.de/ENC2.mpg
[13:08:42] <jdh> my old one: https://imgur.com/fnaGsY9
[13:09:40] <Polymorphism> wood?
[13:09:47] <Polymorphism> maxcnc, nice animation, nice supported round rail
[13:09:54] <Polymorphism> Loetmichel, http://i.imgur.com/YpLhlpW.jpg is this good then? or no point
[13:10:07] <Polymorphism> I can't tell how thick that metal they are bolted to is
[13:10:34] <Loetmichel> Polymorphism: depends on how beefy the structure is that the rails are bolted to
[13:21:22] <FloppyDisk> square rails => NICE!!
[13:24:49] <zeeshan> thats a lot of aluminum
[13:24:49] <zeeshan> :P
[13:25:03] <maxcnc> zeeshan he plans to mill a tank
[13:25:16] <zeeshan> :)
[13:25:40] <maxcnc> sqare rails cool http://www.cnc-discount.de/
[13:26:37] <maxcnc> OH i need to close BYE GN( working overtime is not cool
[13:31:31] <Polymorphism> hmm
[13:31:38] <Polymorphism> and then there were 146
[13:48:30] <Polymorphism> ok, going to go think this through some more
[13:48:38] <Polymorphism> bbl
[13:51:28] <jdh> of course you are
[13:52:14] <gregcnc> http://anric.blatt.com/wp-content/uploads/2016/03/img_1112.jpg
[13:52:24] <Jymmm> What jdh said
[14:00:22] <Loetmichel> hmmm. someone knows of a cheap german obtainable source of FR4 PCB material, 1.5mm, 600*400mm, one sided and 2 sided 1oz copper, no photo paint? about a dozen sheets...
[14:16:41] <Jymmm> germanpcb.de ?
[16:12:16] <JT-Shop> hmmm my ups package left las vegas arrived in opa locka fl on it's way to missouri...
[16:16:21] <djdelorie> what, it didn't go through Georgia too?
[16:24:17] <Crom> heh, it missed Sa Bernadino
[16:24:21] <Crom> heh, it missed San Bernadino
[16:24:31] <Crom> and new jersey...
[16:30:12] <Crom> I ordered a hitch.. the tag fell off and got scanned into a truck going back to memphis.. hitch stayerd in San Berdino
[16:31:57] <JT-Shop> I'm fixing to order a hitch for the Uplander
[16:38:26] <Crom> what is the heavest trailer you going to pull? 3K# - 1500kg, 5K#-2500kg, 7K+#?
[16:39:07] <Crom> I always order the heaviest hitch I can get for the vehile
[16:39:18] <Crom> s/vehile/vehicle/
[16:40:49] <Crom> if I can't get a 2" receiver, I cut off the 1 1/4" tube and weld on a 2" tube
[16:41:48] <JT-Shop> a dry box on a carrier or a light trailer for kayaks and such
[16:42:30] <JT-Shop> I'm getting a type 3 for it just because it fits and I have hardware to fit
[16:42:43] <JT-Shop> I'll also tow my Can Am trailer from time to time
[16:42:54] <JT-Shop> that's a motorcycle trailer in case you don't know
[16:43:30] <Crom> I'd still get 2" receiver...
[16:44:04] <djdelorie> I got a class IV for my truck too, even though a III would pull anything the truck is rated for
[16:46:12] <Crom> my odyssey I could get a I or II, I got the II, My Deville I got the II, and upgraded the 1.25" to a 2" tube. Still haven't done the Odyssey yet... out of gas for the MIG at the mo
[16:47:26] <Crom> I like the 3 wheel road Seadoo
[16:48:00] <Crom> RoadDoo?
[16:49:19] <andypugh> I think it would be LandDoo. A RoadDoo would be equivalent to a ShippingLaneDoo
[16:51:45] * jthornton wonders where he put the links Jymmm gave him on oled's
[16:53:20] <Crom> motoDoo
[17:00:41] <Deejay> gn8
[17:23:39] <Tom_itx> jthornton, those are a bit tricy to get working
[17:23:59] <Tom_itx> tricky*
[17:24:49] <jthornton> oh fun
[17:29:04] <Tom_itx> they must be initialized in a certain way or you can damage them
[17:30:49] <jthornton> really? do you know how?
[17:32:12] <Tom_itx> i've not done it but know someone that has
[17:35:15] <jthornton> can you see if he will share his notes
[17:35:33] <Tom_itx> https://www.idleloop.com/robotics/RAV4-EView/
[17:35:36] <Tom_itx> that's one that did
[17:35:48] <Tom_itx> fenchurch in #seattlerobotics also has
[17:36:00] <Tom_itx> and i'm sure he'd share it if it's still on his site
[17:36:27] <Tom_itx> http://www.fenchurch.org/
[17:36:41] <Tom_itx> haven't been there in a while and it's all re'arranged
[17:39:00] <Tom_itx> i think he destroyed one or two trying
[17:47:16] <Tom_itx> https://learn.sparkfun.com/tutorials/oled-display-hookup-guide
[17:47:25] <Tom_itx> these may not be quite so fussy as the graphic ones
[17:48:02] <Tom_itx> https://learn.adafruit.com/096-mini-color-oled/wiring
[17:48:08] <Tom_itx> you might find something useful there
[17:49:51] <jthornton> I have this one http://www.amazon.com/Diymall-Serial-128x64-Display-Arduino/dp/B00O2KDQBE
[17:50:31] <Tom_itx> maybe there's already an ardweenie lib for it
[17:51:23] <jthornton> yea gotta start somewhere
[17:53:24] <Tom_itx> richard and cathy both did theirs when they first became available so i'm sure they've come quite a ways since then
[18:51:01] <Crom> wooo fabric laser cutter
[19:00:47] <Jymmm> jthornton: JT-Shop JT-JA14 http://www.instructables.com/id/Monochrome-096-i2c-OLED-display-with-arduino-SSD13/?ALLSTEPS
[20:29:14] <jdh> jymm just pasted an arduino link if anyone is keeping track
[20:29:37] <malcom2073> heh
[20:30:04] <Jymmm> jdh: That bastard owes me money!!!
[20:35:36] <arauchfuss> where in the linuxcnc install are the example files?
[20:37:03] <arauchfuss> I have found some in various repos, but I am pretty sure they are in some directory in my install.
[20:44:36] <jdh> arauch: type 'locate sample-configs'
[20:47:01] <arauchfuss> yay
[20:47:06] <arauchfuss> thanks
[20:50:22] <Crom> ARGHOIEWYR(*$%*(%&(*#^%#Q((#*$%^Q)(& damn vanity sizing is to ludicrous amounts... a 1967 size 14 is a 2016 size 4
[20:51:06] <arauchfuss> If I ever make a single commit to linuxcnc it will be enabling copying from the damn error dialog.
[20:51:08] <arauchfuss> heh
[20:52:07] <Crom> good one.. I made just made 4 changes to TurnkeyLaser extension for inkscape for the laser cutter...
[20:53:39] <tiwake> if I ever get a decent job, I'd pay for somebody to work on inkscape
[20:53:54] <tiwake> and probably some other projects
[20:54:34] <Crom> added arduino_map to laser power to map cut power from 0 to 100 on inkscape to 9 to 80 on the cutter. FAN on M106/M107, M300 beep at end of job, and added repeat cut x times.. it takes me 5 80 laser power cuts to cut 1/4" plywood, instead of running the job 5 times i just add 100 [ feed=200,ppm=10,repeat=5] to the layer name
[20:55:04] <Crom> hopefully they get incorporated into turnkey main
[20:55:57] <Crom> actually 79 on power.. 80 is 15.5mA
[20:56:16] <tiwake> only 15mA?
[20:56:28] <Crom> tube is only rated for 15ma
[20:56:41] <tiwake> bigger tube
[20:56:58] <Crom> that's '40w'
[20:57:33] <Crom> with the repeat in there I can actually cut it down to 13mA and get even more life out of the tube...
[20:57:49] <tiwake> 40 watt laser beam?
[20:58:15] <Crom> K40 40w CO2 laser cutter, modded to Arduino mega w/ RAMPS 1.4
[20:59:31] <Crom> there is a CNC zone forum for the K40, no real #k40 channel on IRC
[21:00:04] <tiwake> chinese made it looks like
[21:00:19] <Crom> definately chink made
[21:00:58] <Crom> still 0 views for my mods grrr
[21:04:29] <Crom> 220mm x 325mm cut area 8.75"x13"
[21:04:45] <arauchfuss> whee got rid of all the PID cruft from my hal file.
[21:05:05] <Crom> I think I can get another 1/4" out of y for a true 9"
[21:05:34] <tiwake> one of these days I'll get around to making SLS/SLA rapid prototyping machine
[21:06:32] <tiwake> ...when I get a decent job
[21:06:34] <tiwake> heh
[21:07:28] <Crom> I'm going the get the VA to pay me more disability route
[21:15:37] <[cube]> anyone here have experience with cnc wood routers?
[21:15:47] <[cube]> just got mine up and running
[21:15:54] <djdelorie> some
[21:15:56] <[cube]> looking to make signs with it
[21:16:06] <[cube]> just wondering what bits i should invest in
[21:16:17] <[cube]> like the most universally useful ones
[21:16:30] <arauchfuss> good carbide bits
[21:16:42] <djdelorie> depends on the signs, I suppose. I don't use mine for those in general, but the one sign I did I just used a V-grooving bit
[21:16:54] <[cube]> ah yeah
[21:17:02] <[cube]> I was thinking a tapered ballnose might be good
[21:17:09] <[cube]> and versatile
[21:17:16] <djdelorie> you'll probably want a 1/4" down-spiral straight bit for outlines and things
[21:17:31] <[cube]> ah okay
[21:17:46] <djdelorie> yeah, ball-nose for 3D carvings, V-groove for lettering
[21:18:01] <[cube]> this caught my eye
[21:18:02] <[cube]> http://www.ebay.ca/itm/cnc-router-bit-ball-nose-solid-carbide-1-8-x-1-2-x-1-4-x-2-yonico-34210-sc/281940167425?hash=item41a4f18b01
[21:18:21] <[cube]> I definitely want to do a lot of 3D
[21:18:31] <djdelorie> don't ask me about brands, I use whatever the local hardware store carries :-)
[21:18:39] <[cube]> hehe ok
[21:18:48] <djdelorie> you probably want a range of ball sizes, so you can do roughing through finishing
[21:19:01] <[cube]> this seems decent but wondering if too cheapy
[21:19:02] <[cube]> http://www.ebay.ca/itm/6-pc-1-4-034-Shank-Lettering-and-Sign-Making-Router-Bit-Set-sct-888-/131407554213?&_trksid=p2056016.l4276
[21:19:51] <djdelorie> a cheapy set is OK to start with, as long as you replace the ones you use often with good quality ones
[21:20:40] <arauchfuss> your feeds and speeds are vastly improved by good cutters.
[21:20:40] <[cube]> yeah
[21:20:53] <[cube]> was tempted to get this:
[21:20:54] <[cube]> http://www.ebay.ca/itm/8-Pc-Amana-CNC-Signmaking-Starter-Router-Bit-Set-INDUSTRIAL-/131572632005?hash=item1ea25709c5:g:KbYAAOxyf1dTH13a
[21:21:06] <[cube]> but as a complete n00b, im worried I'll mess them up
[21:21:44] <djdelorie> buy the cheapies now, and the good ones when you're not a noob any more :-)
[21:21:55] <[cube]> yeah, good plan lol
[21:22:40] <arauchfuss> weird so, pncconf defaulted me to velocity mode.
[21:22:54] <arauchfuss> any advantage over position mode?
[21:23:30] <arauchfuss> reason why tearing out the pid stuff was causing me to tear out my hair.
[21:26:40] <jdh> my freebie 5/64" end mills say they have 1/4" long flutes... not even close.
[21:40:28] <Jymmm> jdh: False advertising, get your money back ;)
[21:41:08] <jdh> yeah, not a big deal but glad I noticed before I started cutting
[21:44:47] <enleth> I created a monster. To test the servo drive and Mesa with the original Heidenhain sin/cos encoder that won't work with 7i77, I hooked up some probes inside the Heidenhain control, on the interpolator board, where the encoder signal is converted to quadrature.
[21:44:57] <enleth> Against all odds, it works.
[21:47:18] <jdh> there was an article in some mag somewhat recently that made a sin/cos quad converter
[21:47:40] <enleth> did they use a current signal encoder?
[21:47:52] <enleth> that makes a hell lot of a difference in the input stage
[21:48:34] <jdh> they used a dev board with an sine/cosine interpolator
[21:49:17] <enleth> what I mean is that, more likely than not, it was for a 1Vpp voltage signal encoder which is a much more common type
[21:49:32] <enleth> those encoders I have here are current signal encoders
[21:49:48] <enleth> they require a transimpedance amplifier
[21:49:49] <jdh> could be, pretty dull article
[21:50:59] <arauchfuss> enleth: that an old bridgeport?
[21:51:36] <enleth> arauchfuss: yes, a Series 1 MDI, with TNC 131, SEM servos and a Bosch Z15-1A servo drive
[21:51:59] <enleth> I'm preparing for a servo drive retrofit and a Mesa retrofit
[21:52:00] <arauchfuss> I have a v2xt at work.
[21:52:28] <arauchfuss> cool
[21:52:49] <arauchfuss> I might ask how it goes later.
[21:53:20] <enleth> looked it up, it's one of those V-ram CNC weirdos
[21:54:40] <arauchfuss> if I remember correctly the v2xt yahoo group has info on the encoders.
[21:54:51] <enleth> jesus, this is manual iron
[21:55:00] <enleth> the X motor sticks out to the side
[21:55:12] <enleth> absolutely horrible
[21:55:32] <arauchfuss> pics!
[21:55:36] <pink_vampire> hi
[21:56:12] <enleth> arauchfuss: I entered "bridgeport v2xt" in google images
[21:56:33] <enleth> all results show what's basically a manual 2J2 head bridgeport with servos tacked on
[21:56:50] <arauchfuss> yeah
[21:56:54] <arauchfuss> just did the same
[21:57:06] <enleth> is that what you have at work?
[21:57:59] <arauchfuss> just a basic knee mill.
[21:58:07] <enleth> if it weren't for the control panel at the front of the head, and the dozens of photos showing identical machines, I'd say it's a well done garage retrofit
[21:58:08] <arauchfuss> doesn't get much use.
[21:59:00] <arauchfuss> I looked up pics of your machine, it still has hand wheels!
[21:59:48] <enleth> the Series 1 I have here is much heavier, with dedicated CNC castings - the X motor is on the saddle and spins the ball nut, the Y motor is hidden in a recess in the knee, and the quill is a huge ball screw
[22:00:13] <enleth> the handwheels are not permanently coupled, they have to be engaged for manual operation
[22:00:17] <enleth> so Wszystkie kuchnie
[22:00:20] <enleth> damn
[22:00:24] <enleth> fucking middle click
[22:00:36] <enleth> so it's not "still", it's not a converted manual machine
[22:00:49] <arauchfuss> ah
[22:01:05] <enleth> I don't think it shares even a single casting with the classic manual bridgeport
[22:02:44] <enleth> besides, I was lucky to *not* get a BOSS machine
[22:03:48] <arauchfuss> All I know is the gcode is a bit funky
[22:03:57] <arauchfuss> though all the canned cycles are nice
[22:04:39] <arauchfuss> at least coming from haas and fanuc machines
[22:13:25] <dioz> can i see pictures?
[22:22:29] <enleth> of what?
[22:23:09] <dioz> things and stuff
[22:39:52] <pink_vampire> 11:13PM..
[22:40:52] <pink_vampire> DON'T PANIC!
[22:45:43] <arauchfuss> enleth: are you going to leave the dives or just the servos?
[22:45:50] <arauchfuss> drives
[22:48:35] <enleth> arauchfuss: there is just one drive now, and it's crap
[22:49:14] <enleth> I've got new drives already but I have to redo the whole servo power section because they take DC, while the original drive ran on AC
[22:50:58] <arauchfuss> you will probably have a rather empty cabinet once you replace everything!
[22:54:15] <enleth> I never said I'm replacing everything
[22:54:29] <enleth> 2/3 of the cabinet are contactors and relays
[22:54:33] <enleth> I'm keeping them
[22:55:41] <enleth> pcw_home: fun fact: those encoders aren't actually sin/cos, their outputs are distinctively triangular
[22:58:29] <pcw_home> they are supposed to be nominally sine/cosine (into a virtual GND) but since they are typically only used with 5x interpolation
[22:58:30] <pcw_home> the difference between a sine and triangle is probably not very significant
[23:00:07] <enleth> I'm not sure about interpolation either
[23:00:53] <enleth> weird stuff is going on in there
[23:02:58] <enleth> the TNC recognizes position changes of at least 0.005mm
[23:03:50] <dioz> how hard is it to make a set of tool movements based off a already designed 3d object?
[23:04:31] <arauchfuss> isn't that just CAM?
[23:04:48] <enleth> on a 5mm/turn screw and 2:1 gearing, 0.005mm equals 1/500 of a turn
[23:05:39] <enleth> so a 125/rev encoder requires 4x interpolation for this
[23:07:02] <enleth> with the way they did it - voltage comparators, NAND gates and XOR gates - it makes sense to use a power of 2
[23:07:49] <Crom> hmmm 3200/500 == steps at 16 microsteps == 6.4 steps
[23:08:33] <enleth> what does it have to do with steps?
[23:08:43] <Crom> or 12.8 at 400 steps per rev with 2:1
[23:09:01] <enleth> I've got servos here anyway
[23:10:50] <Crom> wrapping my mind around the presision
[23:11:01] <Crom> wrapping my mind around the precision
[23:14:57] <enleth> nothing fancy, I think
[23:16:06] <arauchfuss> bah, having a hell of a time getting a serial touch screen working.
[23:17:30] <dioz> where do i start guys
[23:17:35] <dioz> to do this
[23:17:39] <dioz> where do i start
[23:19:02] <dioz> god does it ever make me laugh when my gf is on the phone talking to work people
[23:19:06] <dioz> she's so fake
[23:21:17] <pink_vampire> 6 min to May 25!
[23:22:40] * LeelooMinai still fights with axis alignment
[23:23:27] <pink_vampire> LeelooMinai: what are you trying to do?
[23:23:41] <Crom> 3hrs 4nin here, it's already the 25th on UTC
[23:23:55] <LeelooMinai> pink_vampire: Square XY rails:)
[23:24:33] <pink_vampire> LeelooMinai: on what machine?
[23:24:56] <LeelooMinai> It kind of escalated when I discovered that I have rails with round holes, no oval ones, so I had almost not possibility of adjustment there...
[23:24:56] <pink_vampire> Crom: DON'T PANIC!
[23:25:14] <LeelooMinai> pink_vampire: On my design, but rails are Chinese.
[23:25:23] <pink_vampire> pics?
[23:25:38] <LeelooMinai> Here's what I was doing yesterday: https://www.flickr.com/photos/100017731@N03/26627542913 :)
[23:25:52] <LeelooMinai> MacGyver milling with a drill press...
[23:26:24] <LeelooMinai> And now I have this contraption: https://www.flickr.com/photos/100017731@N03/26626463914
[23:26:36] <LeelooMinai> To align it, possibly...
[23:27:50] <pink_vampire> look very very very nice!
[23:28:28] <pink_vampire> HAPPY Towel Day
[23:28:50] <LeelooMinai> No idea what that is...
[23:31:30] <LeelooMinai> Digital indicators should have a wired remote zero button or something... Pressing a zero button ruins any positioning I have done...
[23:34:17] <LeelooMinai> Or better wireless control and receiveing data.
[23:37:30] <Crom> I don't panic I have my towel
[23:38:04] <Crom> though I couldn't tell you where my guide is at the moment..
[23:39:02] <Crom> oh I have the BBC audio book on my phone though
[23:39:46] <LeelooMinai> Ok, I had to google "towel day" - I knew I was missing some information...
[23:41:46] <pink_vampire> nice
[23:42:16] <zeeshan> LeelooMinai: how are you holding it?
[23:42:22] <zeeshan> sounds like a faulty holder
[23:42:43] <zeeshan> nm i see the pic
[23:42:53] <zeeshan> el cheapo holder :P
[23:43:03] <LeelooMinai> It's not faulty - it's just that the whole setup is sensitive and pressing a button requires some force.
[23:43:09] <zeeshan> i have two , one that exact style
[23:43:11] <zeeshan> and one with a mag base
[23:43:15] <zeeshan> and then i have the noga equivalents
[23:43:21] <zeeshan> and there is a big difference in holding power
[23:43:34] <zeeshan> someone made a video on how to fix the china ones to be better
[23:43:45] <LeelooMinai> Right, te ones I have are cheap Chinese ones - but work ok more or less I think.
[23:43:55] <zeeshan> not if youre moving it with the press of a button
[23:43:58] <zeeshan> theyre not doing their job!
[23:44:47] <LeelooMinai> Right, well, as you can see I have a weird scenario there - magnet holding a machinist square and a wrench blocking the spindle:)
[23:45:11] <LeelooMinai> It does not take much force to upset the whole thing.
[23:45:33] <zeeshan> im upset
[23:45:41] <zeeshan> i was removing the lens from the rpi v2 cam
[23:45:43] <zeeshan> and i snapped the ccd
[23:45:50] <zeeshan> or cmos or whatever sensor it is
[23:45:51] <zeeshan> :{
[23:46:05] <LeelooMinai> What do you mean "snapped"?
[23:46:11] <zeeshan> snapped the sensor
[23:46:13] <zeeshan> the glass on it
[23:46:25] <zeeshan> i thought it was holding it lightly in a vise
[23:46:27] <zeeshan> apparently not
[23:46:31] <LeelooMinai> How is it even possible - it's deep there on the pcb.
[23:46:39] <zeeshan> you remove the camera from the pcb
[23:46:43] <zeeshan> its just sitting on an adhesive pad
[23:46:47] <zeeshan> then you need a way to grab it
[23:47:20] <LeelooMinai> And why did you need to do that?
[23:47:31] <zeeshan> i was trying to go lenless for my telescope
[23:48:08] <LeelooMinai> Well, so you went even further - not only lensless, but sensorless:)
[23:48:12] <zeeshan> rofl!
[23:48:22] <zeeshan> honestly, i was playing with it for a while today
[23:48:27] <zeeshan> i was not impressed with the quality
[23:48:33] <zeeshan> my iphone takes better video and photos
[23:48:43] <zeeshan> but you can't really complain for 30$
[23:48:54] <LeelooMinai> Which camera do you have? chinese 5Mp, original 5Mp or new 8Mp?
[23:48:59] <zeeshan> 8mp
[23:49:05] <zeeshan> _had_
[23:49:06] <zeeshan> :)
[23:49:45] <zeeshan> http://www.ebay.com/itm/NEW-5-8-HIGH-PRECISION-002-KEYLESS-DRILL-CHUCK-MT3-MT-3-Shank-Metal-Lathe-/331840352568?hash=item4d4339f138
[23:49:48] <zeeshan> http://www.ebay.com/itm/1-2-HIGH-PRECISION-002-KEYLESS-DRILL-CHUCK-MT2-MT-2-Morse-2-Shank-Metal-Lathe-/331840352569?hash=item4d4339f139
[23:49:51] <zeeshan> on a bright note
[23:50:01] <LeelooMinai> zeeshan: I was playing with those cameras too 2 days ago. I have Chinese cheap 5Mp, but after attaching some cheap CTV macro lens, I could stream this: http://i.imgur.com/9qR5Ilv.jpg
[23:50:04] <zeeshan> that 0.002" tir is bs
[23:50:06] <zeeshan> its 0.001"!
[23:50:08] <LeelooMinai> imho that's pretty goood
[23:50:08] <zeeshan> im happy with that!
[23:50:33] <zeeshan> that does look pretty goo
[23:50:38] <zeeshan> i guess its to do with the factory lens?
[23:50:55] <LeelooMinai> Well, it's not a still picture - that's MJPEG stream.
[23:51:00] <zeeshan> cause i would definitely not be able to read the a7w s1
[23:51:34] <LeelooMinai> I took the original lens off.
[23:51:42] <zeeshan> LeelooMinai: compared to the iphone 5s
[23:51:46] <zeeshan> which also has a 8mp camera..
[23:51:51] <zeeshan> its not as crisp
[23:52:19] <LeelooMinai> Actually, I don't know how crisp it would be if I took more time and actually took a still.
[23:52:39] <LeelooMinai> This is 1920x1080 so 2Mp or so
[23:53:19] <LeelooMinai> Hmm, I need to figure out how to g-code "local zero"
[23:53:24] <zeeshan> http://i.imgur.com/h6XW6MF.jpg?1
[23:53:26] <zeeshan> can you tell the diff?
[23:53:29] <zeeshan> vs your pic
[23:54:07] <LeelooMinai> Well, that's higher res picture.
[23:54:37] <zeeshan> what do you mean g-code local zero
[23:54:38] <zeeshan> machine zero?
[23:55:05] <LeelooMinai> No, I mean I want to use local coordinate system, like g94 etc.
[23:55:22] <LeelooMinai> But cannot find how to set where the zero for it is (I want it at current position)
[23:55:31] <zeeshan> you mean g92?
[23:56:14] <zeeshan> i typically use a standard work coordinate system
[23:56:21] <zeeshan> like g54 g55 g56 etc
[23:56:39] <LeelooMinai> Hmm, seems g92 can do it too, but still, that's different that g94 and others
[23:56:57] <zeeshan> i dont think you can change the g53 (machine coordinate) origin
[23:56:58] <LeelooMinai> Wait, no
[23:57:00] <zeeshan> that's set thru homing
[23:57:18] <zeeshan> but if you want to set where the zero is for g54 for example
[23:57:18] <LeelooMinai> I meant g54 and others
[23:57:21] <zeeshan> you can just touch off
[23:57:21] <zeeshan> or
[23:57:25] <zeeshan> use g10
[23:57:33] <zeeshan> theyre very confusing.
[23:57:58] <zeeshan> i suggest this
[23:57:59] <LeelooMinai> They should give them mnemonics , like for assembly language:)
[23:58:01] <zeeshan> home your machine
[23:58:16] <zeeshan> type g54 in the mdi
[23:58:24] <LeelooMinai> No, I don't want to home - I just want to set the current position as zero, temprarily at least.
[23:58:29] <zeeshan> o
[23:58:40] <zeeshan> then you can just press the home button
[23:58:52] <zeeshan> and it'll take whatever position you're at right now as the machine origin
[23:59:05] <LeelooMinai> THere's a home button? ...
[23:59:08] <zeeshan> ya
[23:59:10] <enleth> pcw_home: I just found out by accident that there are dedicated transimpedance amplifier chips for the price of a comparable general purpose opamp, but much easier to design for
[23:59:41] <enleth> pcw_home: TI OPA381 appears perfect for passive photodiode encoders
[23:59:46] <zeeshan> under machine menu
[23:59:51] <zeeshan> there should be a homing option
[23:59:51] <LeelooMinai> Hmm, I have no home button...