#linuxcnc | Logs for 2013-06-26

[02:03:59] <DJ9DJ> moin
[02:40:00] <RyanS> What's typically used to test chuck runout ? hss round tool steel blank?
[02:43:34] <archivist> and a dti
[02:50:03] <RyanS> yeah but it's not ground, annealed silver steel i need, it's ground and hardened tool steel?
[05:17:19] <tjtr33> Tom_itx, interesting part http://tom-itx.dyndns.org:81/~webpage/cnc/P3.jpg
[05:17:48] <tjtr33> at the fest, the master programmer Willy, gave a run thru of NCL, the system they use
[05:18:34] <tjtr33> he imported an IGES model , built a box around it, representing the stock, and decided the milling procedure and clamping
[05:19:21] <tjtr33> he , like you, had to add clamping that eventually got cut thru releasing the part.
[05:20:08] <tjtr33> it involved on reclamping. i'd never seen the bounding box idea before, very interesting ( i always worked from prints not models )
[05:20:21] <tjtr33> *one reclamping
[05:20:57] <tjtr33> btw, the NCL demo was for the APT360 interest group ( similar )
[05:34:27] <archivist_herron> tjtr33, hmm what I miss :)
[05:34:43] <andy1978> jdh: have you seen my hf2gcode posting on the mailing list or got it dropped?
[05:37:08] <andy1978> hm, anyone?
[05:50:28] <RyanS> Shall I find it strange that metal suppliers tend to stock everything except cast-iron?
[05:50:38] <RyanS> should
[05:55:44] <jthornton> cast iron is usually not in stock shapes but cast to a specific shape
[05:57:35] <RyanS> I found one place a foundry only suppliers 3 m lengths of cast iron bar
[06:01:55] <archivist_herron> some cut to size
[06:07:57] <archivist_herron> the continuous cast stuff is rather nice
[06:08:18] <jthornton> I need an A axis on my BP knee mill, I've been looking at rotary tables on flea bay but not sure if that is a good way to go
[06:10:46] <jthornton> has anyone converted a manual rotary to stepper or servo?
[06:12:20] <archivist_herron> both mine are stepper conversions on elcheapo rotaries
[06:13:07] <archivist_herron> one is a Vertex the other a chinese copy of it
[06:13:20] <jthornton> I need to cut short pieces of tubing to fit into a 3 way intersection so not very precise
[06:15:00] <archivist_herron> http://www.archivist.info/cnc/stage8/IMG_0268.JPG you can see one of the mounts
[06:16:05] <jthornton> that looks easy enough, you just removed the handle and put a coupling on it to the stepper?
[06:16:24] <RyanS> hmm, chuck adapter making fun tomorrow..
[06:16:33] <archivist_herron> http://www.archivist.info/cnc/stage7/IMG_0252.JPG the other has a tube with a slot to access the coupling
[06:17:34] <archivist_herron> jthornton, yup machined a plate to register and screw holes plus the four pillar holes
[06:18:09] <archivist_herron> nothing too posh or accurate :)
[06:19:13] <jthornton> this only needs to cut bevels on tubing atm
[06:20:23] <archivist_herron> only thing with the cheap rotaries is keeping the backlash down to acceptable levels
[06:20:41] <archivist_herron> or hiding it in the gcode
[06:20:41] <jthornton> http://www.ebay.com/itm/ACCURA-VERTEX-HV-6-6-INCH-HORIZONTAL-VERTICAL-ROTARY-TABLE-SWEET-/321141545975?pt=BI_Tool_Work_Holding&hash=item4ac5871bf7
[06:21:36] <archivist_herron> I have the copy of that, bar stewards even put HV6 on the box
[06:23:13] <archivist_herron> http://www.chronos.ltd.uk/acatalog/Soba_Rotary_Tables_and_accessories.html the soba one
[06:24:26] <archivist_herron> Vertex do quote accuracy etc
[06:25:00] <archivist_herron> have 90-1 reduction too
[06:25:15] <RyanS> So it's essentially just a matter of slapping a stepper motor in place of the handle
[06:25:57] <jthornton> the soba is cheaper than the fleabay ones
[06:26:54] <archivist_herron> no quality spec with a soba
[06:27:54] <RyanS> archivist what on earth sort of spindle is that from? on your mill
[06:29:01] <archivist_herron> a lathe headstock
[06:29:24] <archivist_herron> google hobbymat md65
[06:29:50] <archivist_herron> as a lathe it is one of the worst in the world
[06:32:51] <archivist_herron> http://www.lathes.co.uk/hobbymat/
[06:36:18] <RyanS> I wonder if myford lathes (considering people buy old ones and do restoration) are really any better than new Chinese lathes
[06:36:41] <RyanS> Or any other brand equivalent people tend to restore
[06:42:32] <archivist_herron> I would prefer something with a better bed design than a myford
[06:44:05] <archivist_herron> a worn myford has play or is tight with very little usable sliding area
[06:45:05] <archivist_herron> I live 20 miles from Myfords factory so should be biased in favour, only model makers think they are good
[06:45:45] <archivist_herron> few of them have used a better machine
[06:45:48] <jthornton> http://www.grizzly.com/products/6-Inch-Rotary-Table/SB1364
[06:45:59] <jthornton> this one has backlash adjustment
[06:46:09] <jthornton> a bit higher priced
[06:46:45] <archivist_herron> the vertex can be adjusted
[06:47:09] <archivist_herron> that suspiciously looks like a southbend label on .....
[06:49:31] <jthornton> LOL on Amazon no less http://www.amazon.com/dp/B000HRY444
[06:50:16] <RyanS> do you like my 'genuine' Rolex of dial test indicators? http://www.auctiva.com/hostedimages/showimage.aspx?gid=761370&image=350164273&images=350164273&formats=0&format=0
[06:50:59] <RyanS> In case you can't see it it has "Mityutoyo made in Japan" on the face
[06:51:51] <archivist_herron> jthornton, the number of slots is different but the side view of yuasa shows 6 slot
[06:52:21] <archivist_herron> RyanS, mitutoyo is ok
[06:53:04] <archivist_herron> genuine mitutoyo is anyway
[06:53:30] <RyanS> This one is 'genuine' :P
[06:54:18] <RyanS> pssst. wanna buya fake Mityutoyo
[06:57:15] <skunkworks> ooh fancy - http://www.machsupport.com/
[06:57:22] <skunkworks> (new website)
[06:57:31] <skunkworks> http://www.machsupport.com/software/mach4/
[06:59:05] <Jymmm> HAHAHA "100% Satisfaction Coming soon"... In the meantime you're fucked. Thank you and have a nice day.
[06:59:20] <jthornton> lol
[06:59:37] <Jymmm> http://www.machsupport.com/wp-content/uploads/2013/03/mach4-coming-soon.jpg
[07:00:31] <archivist_herron> over here there is a law that fall foul of
[07:01:26] <Jymmm> archivist_herron: What happens when they break that 2year warranty law?
[07:01:57] <Tom_itx> tjtr33, in that case the finished part was clamped on the base and there was no extra material. by the time P3 came around the profile and horizontal hole was already cut
[07:02:17] <archivist_herron> advertising standards authority would stamp on that 100%
[07:04:26] <Tom_itx> Jymmm, who's satisfaction? the author or the user?
[07:05:15] <archivist_herron> advertising has to be legal, decent, honest and truthful
[07:05:31] <Jymmm> Tom_itx: Well, since it's "Coming Soon", I'm guessing the accountant counting all the snake oil profits =)
[07:05:44] <archivist_herron> it phails the honest and truthful tests
[07:06:03] <jthornton> 8" Horizontal/Vertical Rotary Table - Yuasa Type
[07:06:04] <Jymmm> archivist_herron: LOL, McDonalds would be screwed on product photos alone on that.
[07:06:08] <jthornton> http://www.grizzly.com/products/8-Horizontal-Vertical-Rotary-Table-Yuasa-Type/G9298
[07:06:19] <jthornton> what is a Yuasa Type?
[07:06:27] <Tom_itx> Jymmm, the odds are in their favor though
[07:06:41] <Tom_itx> surely somewhere sometime they've served something 'similar'
[07:06:43] <archivist_herron> Jymmm, I think mkd did have a run in with the authority
[07:06:53] <Jymmm> Tom_itx: Never bet against the house =)
[07:07:15] <archivist_herron> jthornton, I assume another maker
[07:07:27] <Tom_itx> i will give it to them on their smoothies
[07:07:48] <archivist_herron> http://www.yuasa-intl.com/
[07:08:05] <Jymmm> archivist_herron: Yeah, I know when I hit Burger King, my burger ALWAYS looks like this... NOT! http://www.savingmoneyinmissouri.com/wp-content/uploads//2012/12/whopper.jpg
[07:08:49] <Jymmm> https://upload.wikimedia.org/wikipedia/commons/9/91/Burger_King_Whopper_Combo.jpg
[07:09:09] <archivist_herron> jthornton, or does it mean we copied yuasa :)
[07:09:23] <jthornton> I think that is correct
[07:09:44] <Tom_itx> tjtr33, the bounding box is a safe way to program. the operator also knows then the material block to prepare
[07:10:03] <archivist_herron> jthornton, http://www.yuasa-intl.com/products_list.aspx?sid=30
[07:10:28] <Tom_itx> unless you're cutting stuff from flat plate or such
[07:14:23] <jthornton> seems from the Griz the Yuasa Type is the only one that has any specifications
[07:15:26] <archivist_herron> respectable companies have specs :)
[07:21:59] <RyanS> re*spec*table .... hurhur
[09:56:28] <rizo> hello, is there an option to "halcmd show pin pid.0" in loop to refresh and dosplay the signals
[09:57:29] <JT-Shop> halmeter
[09:58:20] <rizo> i know, but it display yust one signal or i need to write the script to run multiple halmeters
[10:00:02] <pcw_home> you can 'watch' it and save the watch list
[10:02:50] <pcw_home> machine --> show hal configuration --> watch --> pins --> the pins you want
[10:03:03] <pcw_home> (in axis)
[10:08:30] <rizo> pcw_home, thank you :)
[10:10:35] <JT-Shop> rizo: are you running Axis?
[10:12:00] <Nick001-Shop> How do I clear a g54 register?
[10:12:14] <JT-Shop> g10
[10:12:37] <Nick001-Shop> just that in mdi?
[10:12:47] <JT-Shop> you running axis?
[10:13:00] <Nick001-Shop> yes in lathe
[10:13:09] <JT-Shop> just use the menu
[10:14:05] <Nick001-Shop> in the touch off screen, is there a way of having tool table as the top line?
[10:14:39] <JT-Shop> yes you select it and it is stays up there
[10:14:51] <rizo> JT-Shop, yes
[10:15:30] <Nick001-Shop> can I have it as default top line?
[10:18:01] <Nick001-Shop> wrong question - how do I make the touch off screen come up with tool table as the top line by default?
[10:20:42] <JT-Shop> rizo: just set up a watch window in show hal configuration
[10:22:07] <JT-Shop> Nick001: hack axis
[10:23:03] <archivist> careful with that axe eugene
[10:24:47] <Nick001-Shop> What is the file name that hase the touch off list?
[10:26:30] <JT-Shop> might be one of many, I know there are one/some tcl files and at least one or three python files and maybe some more I don't know about
[10:27:01] <JT-Shop> I do know you can create an .axisrc file to override code in axis
[10:27:51] <JT-Shop> I'd play with a rip before messing up the installed files
[10:30:37] <JT-Shop> holy moly this box of 1/4"-20 x 3/8" FHCS is made in the USA
[10:31:29] <ssi> every box of fasteners I buy is made in the US :P
[10:31:34] <Nick001-Shop> I'll have to do that later - right now have to get rid of a g59 dimension that got put in there and is screwing up a lathe job I'm trying to get going. Did a touch off with a new tool and didn't scroll down to the tool table first.
[10:31:47] <ssi> because it's all either from mcmaster or aviation hardware :P
[10:37:48] <JT-Shop> that's where I got this box from mcmaster
[10:40:17] <JT-Shop> Nick001-Shop: that is on the menu
[10:45:43] <ssi> most of the standard-size SHCS I get from mcmaster are made by Kerr in Ohio
[10:46:23] <JT-Shop> these were made in IN IIRC
[10:46:37] <JT-Shop> I have a lot of boxes of Kerr in the drawer
[11:09:07] <tjtr33> on the 23rd, glowplug mentioned an 'instructable' for "sexy 6-axis robot" .
[11:09:19] <tjtr33> its a great read, tho I'd like tandem arms all the time.
[11:09:34] <tjtr33> then suddenly it gets real sci-fi as the author says he's controlling it with his mind using this
[11:09:34] <tjtr33> http://www.emotiv.com/apps/epoc/299/ well a great read anyway :)
[11:45:18] <JT-Shop> Yikes! I just bailed 20 gallons of water out of my return air duct... my paint job must have been real good to hold the water that long
[11:47:37] <Jymmm> or that much of a hidden leak =)
[11:49:04] <JT-Shop> drain trap plugged up with green monsters and I noticed it yesterday so I cleaned the trap out and mopped up the water. Went back to check and more water... look deeper into the sympton and found the remaining water in the pool!
[12:02:56] <IchGuckLive> hi all B)
[12:10:22] <frallzor> ahoyhoy
[12:10:28] <IchGuckLive> B)
[12:11:07] <frallzor> new day, new projects, and finally a 3D-printer one
[12:11:35] <IchGuckLive> what type
[12:11:54] <frallzor> starting simple, FDM
[12:12:55] <frallzor> using coreXY with timing belts for... well X and Y and ballscrew for Z
[12:13:04] <frallzor> and proper linear rails for all axis
[12:14:13] <IchGuckLive> z masslscrew is crab as you move only up
[12:14:43] <IchGuckLive> my keyboard writes its own words O.O Ballscrew
[12:14:50] <frallzor> if you go gold, why settle for silver on some parts =)
[12:15:06] <frallzor> sounds better too with ballscrew =P
[12:15:16] <IchGuckLive> US or europ
[12:15:23] <frallzor> europe
[12:15:33] <IchGuckLive> Germany ?=
[12:15:36] <frallzor> sweden
[12:15:39] <frallzor> so close =)
[12:15:43] <frallzor> kind of
[12:15:50] <IchGuckLive> then go polan for the best part
[12:16:16] <frallzor> I went Swedish =)
[12:16:29] <IchGuckLive> Sandvik
[12:16:47] <frallzor> they do these things too?
[12:17:08] <IchGuckLive> yes the rails are well worldwide best products
[12:17:26] <frallzor> most of my taps are sandvik atleast =)
[12:18:11] <IchGuckLive> as most worldwide are
[12:19:25] <frallzor> dont know much about the parts im getting, but from what I´ve heard, theyre good.
[12:19:46] <IchGuckLive> the nozzle is the goal
[12:20:19] <frallzor> i wont make a extruder on my own though at this point
[12:20:28] <frallzor> gonna find the best possible build I can
[12:24:18] <jthornton> a plain back chuck with mounting bolts from the front like this one http://www.grizzly.com/products/8-4-Jaw-Plain-Back-Independent-Chuck/G9866 can be mounted to a rotary table
[12:24:24] <jthornton> like this one http://www.grizzly.com/products/8-Horizontal-Vertical-Rotary-Table-Yuasa-Type/G9298
[12:24:28] <jthornton> with T nuts?
[12:26:18] <Jymmm> jthornton: T Nuts, Straight Nuts, Gay Nuts, Your Nuts... whatever gets the job done.
[12:27:04] <jdh> I would think not.
[12:27:29] <Jymmm> jdh: Then grow a pair already.... wuss!
[12:27:45] <jdh> you could probably do a 6" chuck on there, with a backing plate
[12:28:15] <jthornton> what would the backing plate do?
[12:28:26] <jdh> actually, it looks like it might work.
[12:28:43] <jthornton> bolt from the front as it is a 4 jaw chuck
[12:28:52] <jdh> I've seen smaller ones that you had to bolt the chuck to something, then clamp that on the rotarty
[12:29:09] <jthornton> scroll chuck?
[12:29:13] <jdh> probably
[12:31:09] <willburrrr2003> Good day all, Anypugh are you on today? I would like to pick your brain about stepgen....
[12:31:35] <Jymmm> andypugh: ZOMBIE ATTACK... RUN!!!!!!!!!!!!!!!!!!
[12:32:32] <willburrrr2003> > Jymmm ...LOL
[12:32:41] <andypugh> Eeek! (I feel he may have selected the wong target)
[12:32:43] <willburrrr2003> braaaaaiinnnsssss
[12:33:04] <Jymmm> Send more pramedics!!!
[12:33:11] <Jymmm> paramedics
[12:33:47] <Jymmm> that is an awesome movie!!!
[12:34:45] <willburrrr2003> andypugh , on stepgen you said that I could limit my output freq with maxvel...but I am wondering how linuxcnc knows what freq is being out put if the velocity command from linuxcnc is in rpm, and maxvel as far as I understood it was the max RPMs that linuxcnc can call for?
[12:35:16] <willburrrr2003> I mean, it does work the way I configured it...just trying to wrap my brain around what your describing, and the why
[12:35:23] <andypugh> Max frequency is related to the stepgen scale and the stepgen max velocity.
[12:35:43] <willburrrr2003> there's a scale in stepgen?! :p
[12:36:10] <willburrrr2003> I thought I had to use an external scal module?
[12:36:11] <andypugh> Yes, that is what all the messing about with leadscrew pitches and gearing is used to calculate
[12:36:42] <tjtr33> could someone try this cfg? sim/axis axis_foam ? i get this "insmod: error inserting '/home/tomp/linuxcnc-dev/rtlib/or2.ko': -1 File exists"
[12:36:55] <andypugh> The scale is steps per unit length for position mode. I am not sure what it is for velocity, probably the same.
[12:37:48] <andypugh> So, if you tell the system that the stepgen scale is 1000 steps per inch, and the max speed is 25 in/sec then you get a max frequency of 25kHz.
[12:38:21] <andypugh> However, you can almost certainly fiddle those numbers to give a command in rpm and get the required frequency out.,
[12:39:50] <willburrrr2003> yes, or redefine steplen to give a max freq, and send an commanded rpm speed request from linuxcnc to stepgen as I have done
[12:40:16] <willburrrr2003> I love how versitile linuxcnc is, and that there are so many ways that something can be made to work
[12:40:26] <andypugh> tjtr33: Works for me (in master)
[12:44:00] <IchGuckLive> tjtr33: axis-foam is from me
[12:44:12] <willburrrr2003> Ok, for encoder. I will be using a single pulse for encoder phase z, and a 36 pulse for encoder phase a...am I hooking my pulses to the correct phases ?
[12:44:26] <tjtr33> thx: my pull was just b4 the fest , will look further A( maybe i have a linuxcnc running on one of these desktops :)
[12:44:35] <IchGuckLive> its for the XYUV mashine
[12:44:53] <IchGuckLive> Foamcutter 2 planes
[12:45:35] <tjtr33> IchGuckLive, a guy asked me for open src real wedm (AGie) gcode generator, and i thought i's use sim/axis/foam as a visual tool
[12:45:41] <tjtr33> and many thx for the work
[12:46:45] <tjtr33> his control would want a custom post, it gets XY and an angle to xy plane ( not sure where he puts the plane heights yet )
[12:46:49] <IchGuckLive> agie evolution or the D200 serias uses a backward forward G-code Distance generation
[12:47:03] <IchGuckLive> to get the best out of the generator
[12:47:06] <tjtr33> again, unknown, likely DEM250 ( old!)
[12:47:17] <IchGuckLive> so the mashine knows every time the length to pendel
[12:47:56] <tjtr33> unsure, this is all preliminary look into his resources
[12:48:06] <IchGuckLive> and the new one evolution4 incector goes as fast as the mill with more then 45mm/min on 62HRC 25mm plates
[12:48:54] <tjtr33> really! thats huge amount of swarf for a wedm, ( i worked for agie for 12 yrs )
[12:49:09] <IchGuckLive> the agie strategie is the best iknow so far for punging plates to go
[12:49:10] <tjtr33> 2 sqr inches per min
[12:49:28] <IchGuckLive> not on destroy on cut
[12:49:52] <IchGuckLive> on pricise D0002 it is 120mm/min at 0.01mm
[12:50:38] <tjtr33> thx again, will go try to figger my prob with loading that module
[12:50:54] <IchGuckLive> http://www.hager.de/ecatimages/large/VK_3.jpg
[12:51:29] <IchGuckLive> i did tools 15yrs to punch this hols out of plastik at max 35m/min with 5-12 punchers
[12:52:34] <tjtr33> ah the vertical holes are punched, its a German Panduit, nice
[12:52:52] <tjtr33> extrude then punch
[12:54:49] <IchGuckLive> yes in one line
[13:02:25] <jdh> does G61/G64 persist over linuxcnc restarts? Is it stored somewhere viewable?
[13:02:57] <IchGuckLive> in the ini use Startup G-code
[13:40:12] <glowplug> Hello again. =)
[13:43:24] <glowplug> I have a question regarding the 6-axis configurations. I think I know the answer but I just want to be sure.
[13:43:58] <glowplug> LinuxCNC cannot translate G-Code produced in 3-axis to a 6+ axis robot correct? The G-code needs to be generated for 6+ axis machining?
[13:50:15] <skunkworks> glowplug, depends on what you mean. You can setup kins that translates world to joint. So you can program xyz and linuxcnc translates to 1-6 joints.
[13:51:14] <glowplug> Interesting. I found a project online that is *very* similar to what I planned. http://www.alvarogil.com/cadcam/robot/index.html
[13:51:36] <glowplug> He uses MasterCAM and RobotMaster to generate 6-axis G-Code. Your saying that wasn't even necessary?
[13:52:18] <archivist> depends......
[13:52:19] <skunkworks> heh using mach - you would have to do that. :)
[13:52:45] <glowplug> Thats where I got confused. In the description he says "EMC2"
[13:52:50] <glowplug> Then further down it says Mach3.
[13:53:07] <archivist> you may want something in between some kins and 5 axis gcode
[13:53:39] <glowplug> Currently in the Puma560 simulator I can't even get it to draw a circle. I'm missing something major here... haha
[13:53:42] <archivist> anyone using mach is confused :)
[13:53:43] <skunkworks> glowplug, linuxcnc is running normal xyz gcode here and translating it into joints.
[13:53:44] <skunkworks> https://www.youtube.com/watch?v=80YhX73DuSg
[13:54:41] <skunkworks> glowplug, did you home it?
[13:54:54] <glowplug> This is extremely interesting because it essentially makes 4-9 axis CAM software irrelevent...
[13:55:04] <glowplug> Yes it is homed. But probably not correctly. Haha
[13:55:49] <archivist> 3 axis has no head rotation, you probably want 5
[13:56:42] <glowplug> But in theory if I have 3-axis g-code I can machine something in 3 dimensions using a 6-axis robot (it just wouldn't use head rotation).
[13:57:16] <archivist> yes like that video
[13:58:50] <glowplug> I just need to tackle why I can't get the simulation working with basic 3-axis g-code then.
[13:59:59] <archivist> some error in dimension, did you adjust the model as well as the kins
[14:00:43] <glowplug> The model seems to be a good size and position. How do I adjust the kins?
[14:00:59] <glowplug> One major issue I'm having is that the "touch off" button is greyed out. Is this normal?
[14:01:54] <archivist> have you adjusted anything at all or is it the stock model
[14:02:29] <glowplug> I had changed some things. But I did a complete re-compile of LinuxCNC 2.6 and I'm starting from scratch now.
[14:07:39] <skunkworks> the puma sim works - i have played with it
[14:10:10] <glowplug> What did you use to generate the G-Code?
[14:20:28] <glowplug> I'm using Inkscape + GCodeTools. I have a file that I used on my 3-axis CNC and it worked perfectly. In the Puma560 sim it immediately says "Exceeded soft limit on joint 2"
[14:23:40] <cpresser> glowplug: its outside the working area
[14:23:57] <cpresser> either scale the gcode, or increase the working-area (soft-limits)
[14:24:23] <glowplug> How do I go about option #2?
[14:27:24] <jdh> change the machine limits in your .ini
[14:30:45] <glowplug> Hmm. I'll take a look again. Thanks =).
[14:32:53] <cradek> often that just means your origin is set wrong
[14:33:02] <cradek> look at your bounding box and see what's sticking out
[14:34:01] <glowplug> The red box is massive. My part is just a drawing in the center of it.
[14:35:20] <glowplug> Also the grey pointer for the robots tool is exactly where its supposed to be.
[14:36:18] <jdh> did you home and touch-off?
[14:36:37] <glowplug> Thats whats giving me a hard time. The "touch off" button is greyed out when the robot is activated.
[14:37:01] <jdh> I didn't know there was a touch off button
[14:37:36] <glowplug> In the Axis GUI there is a "home all" and "touch off". On my 3-axis I use those to before I start and it works perfectly.
[14:37:54] <glowplug> In the Puma SIM the touch off button is greyed out. Can't use it. O.o
[14:38:26] <jdh> I guess I have seen them. I just use home & end
[14:39:11] <glowplug> Hmm. Where do you use the end function?
[14:39:48] <jdh> touch-off
[14:40:23] <glowplug> Haha. Damn it!
[14:40:53] <glowplug> I've googled "linuxcnc touch-off greyed out / disabled" I can't seem to find anyone with the same problem.
[14:42:01] <jdh> hit $?
[14:43:50] <glowplug> !!!
[14:43:58] <glowplug> What does $ do?
[14:44:16] <skunkworks> changes from joint to world
[14:44:19] <skunkworks> and back
[14:44:45] <glowplug> And that magically re-enables touch-off? What the heck?
[14:44:53] <skunkworks> so the display will change from joint 0-5 to xyzabc...
[14:46:01] <glowplug> So by default its showing me the joints and not the XYZ coordinates.
[14:46:06] <glowplug> Interesting.
[14:46:41] <cradek> touch off (and most of gcode) make no sense in joint mode
[14:46:52] <jdh> does ctrl-V do something special in axis? WHen pasting into the MDI window, my view always changes.
[14:48:05] <cradek> in X, you highlight the text you want and then paste by pressing the middle button
[14:48:40] <cradek> in recent years some misguided people have stirred in the windows convention of C-x C-c C-v as well, making an unholy combination
[14:48:42] <jdh> my middle button is scroll wheel that does weird things when I push it.
[14:49:13] <cradek> some misguided people have also made mice without good middle buttons
[14:49:17] <jdh> I'm not a mouse fan
[14:49:57] <jdh> all the marks on my vise and table are due to bad mdi entry.
[14:50:18] <cradek> you might try shift-insert
[14:50:43] <jdh> didn't work
[14:50:46] <jdh> but, ctrl-insert works in gedit
[14:51:06] <cradek> shift insert works for me
[14:51:29] <cradek> highlight your text in another window, then move over to AXIS and hit shift-insert
[14:51:31] <jdh> cool. I'll try that again tonight. I never remmber the ctrl-vcwtf
[14:51:52] <cradek> yeah those are windowsisms
[14:52:11] <skunkworks> I grew up on ctrl-insert and shift-insert
[14:52:26] <skunkworks> it is my goto copy/paste
[14:52:34] <jdh> me too
[14:52:48] <jdh> vs. scissors and tape from the tty
[14:53:02] <archivist> yy pp
[14:57:45] <tjtr33> i think i have a modified version of config/sim/axis/core_sim9.hal.
[14:57:58] <tjtr33> mine has an orphan loadrt or2 count=1.
[14:57:59] <tjtr33> i tried to view on github to compare but get a 404
[14:58:18] <tjtr33> and the orphan screws up the wire foam sim
[14:58:34] <tjtr33> i removed the orphan and it works
[14:58:54] <tjtr33> (runs with out errs '...ko file exists '
[15:04:12] <skunkworks> https://www.youtube.com/watch?v=VAFwNDdoEyM
[15:07:05] <tjtr33> cool someone had done sand plotting back in the day, very artsy http://taomc.com/art/kinetic_sculptures/sisyphus_series.html
[15:07:38] <archivist> but I saw no sand!
[15:08:15] <skunkworks> https://www.youtube.com/watch?v=jtKy9Vznxps
[15:09:13] <archivist> what I call sand "plotting" https://www.youtube.com/watch?v=HOMgDbcA84A
[15:14:37] <tjtr33> archivist, very nice, until she sprinkled some on, i thought it might have been a reactable
[15:16:14] <archivist> the transformations as she works it are clever
[15:17:27] <tjtr33> i'd pay to see that, shes's great, the quick hand splash of a marching crowd was signs of a lot of experimentaion and creativity
[15:17:28] <glowplug> End is an MDI command that does the same thing as touch-off?
[15:18:40] <jdh> end is a key on the keyboard
[15:23:47] <tjtr33> archivist, thanks for posting that
[15:28:35] <glowplug> Oh. Haha!
[15:29:04] <glowplug> I don't happen to have an end key. But the $ hotkey pretty much solved everything.
[15:29:20] <glowplug> I don't have the robot working yet. But now that I can use touch-off I should be able to get it.
[16:07:04] <cradek> https://twitter.com/SCOTUSblog/status/349934656281534464/photo/1
[17:29:08] <jdh> would g61/g64 be able to make inside circles a different size than requested?
[17:29:34] <andypugh> Today I have mainly been making screws: https://plus.google.com/photos/108164504656404380542/albums/5889085582650378897
[17:34:57] <skunkworks> andypugh: are you cnc'ing it or rebuilding it?
[17:35:01] <skunkworks> (or both_
[17:35:07] <andypugh> Rebuilding first.
[17:35:16] <andypugh> Then I will decide.
[17:35:28] <skunkworks> wow that 'tool post' sure has had a life...
[17:35:32] <andypugh> I want to see if it is a fundamentally good lathe first.
[17:38:06] <skunkworks> very cool
[17:47:51] <Nick001-Shop> Is var spot #5220 mapped to a particular function in axis?
[17:49:19] <andypugh> Not in Axis. But in LinuxCNC in general. http://www.linuxcnc.org/docs/html/gcode/overview.html#sec:parameters
[17:49:35] <andypugh> It is the current coordinate system code number.
[18:13:41] <Nick001-Shop_> Thanks for the info - makes some sence - gotta go again
[18:14:03] <Nick001-Shop> sense
[20:13:34] <cradek> jdh: no, but g41/g42 can, with some limitations
[20:19:00] <jdh> no compensation in use
[20:20:39] <jdh> G61 did make my inside profiles cleaner in the corners.
[21:01:20] <skunkworks> sure - g64 is going to round them (depending on the acceleration)
[21:06:43] <Tom_itx> would you tend to use G64 on roughing passes and use exact path for the finish pass?
[21:23:52] <jdh> dunno. looks like it defaults to g64 for a stock setup
[21:25:11] <jdh> I did a profile with a .25" endmill then went back over it with a 1/8" to make the internal radius smaller. The 1/8" didn't even touch the radius unless I slowed it way down or ran it with G61
[21:25:26] <skunkworks> not necessarily... The g64 may cut a corner you don't want to... like the outside profile. I do g64px.xxx so the path follows within the x.xxx tolerance..
[21:35:21] <skunkworks> http://www.linuxcnc.org/docs/2.5/html/gcode/gcode.html#sec:G64
[21:36:05] <jdh> I read those a few times. How close is close enough.
[21:36:25] <jdh> when does g61 do better, or g64 with no params,or g64 with tolerance
[21:37:08] <jdh> and with HSS tooling and 6161 is it better to cut dry, or spray light lube
[21:37:09] <skunkworks> I would guess g64p.000000000001 is pretty close to exact stop :)
[21:38:01] <jdh> yeah, but other than pathalogical cases, where is the line
[21:38:11] <jdh> so to speak
[21:59:37] <toastyde1th> the best case is to use an endmill smaller than the desired corner and do a circular interpolation, avoiding the issue entirely
[21:59:57] <skunkworks> I don't understand the question... If you want the machine to follow the path exactly (and will take the longest) use G61
[22:00:22] <skunkworks> G64 allows you to control how well/bad the tool follows the program path
[23:06:33] <RyanS> I've read its bad to use mild steel as a lathhe chuck adapter . Any reason why I can't use it?
[23:07:01] <RyanS> Apart from a cast-iron being the usual material used
[23:08:21] <toastyde1th> other than promoting chatter?
[23:08:23] <toastyde1th> not really
[23:09:37] <toastyde1th> it's not that bad, but you don't want a substantial portion of the shit you bolt to the machine to be steel
[23:11:17] <toastyde1th> plenty of hobby dudes make machines out of all kinds of weird shit and it works just fine
[23:11:43] <toastyde1th> the issue is that when you're talking about a commercial machine, you can hinder what it can do by putting steel parts on it
[23:13:34] <jdh> how big of a mill do you need to cut 0.5" aluminum in one pass? Or do you just not do that?
[23:13:53] <toastyde1th> wide? deep?
[23:14:11] <jdh> deep
[23:14:15] <toastyde1th> how wide
[23:14:16] <jdh> and wide
[23:14:21] <toastyde1th> a bridgeport can do that
[23:14:24] <toastyde1th> not quickly
[23:14:25] <toastyde1th> but it'll do it
[23:14:43] <jdh> I was doing 50thou, took forever.
[23:14:50] <toastyde1th> yeah that's cray
[23:15:12] <toastyde1th> the trick for hogging on most machines is to slow the spindle down and increase the chip load
[23:15:15] <jdh> http://tinyurl.com/pgwbst3
[23:15:37] <toastyde1th> a 1/2" endmill can go 1/2" deep without much trouble, two or three flute
[23:16:01] <toastyde1th> what machine are you cutting it on
[23:16:06] <jdh> G0704
[23:16:10] <toastyde1th> link?
[23:16:19] <toastyde1th> do you have a roughing endmill?
[23:16:21] <jdh> 1 chinese HP, but they also call it 600watt
[23:16:24] <jdh> nope
[23:16:35] <toastyde1th> buy a roughing endmill, they make a big difference
[23:16:38] <toastyde1th> esp in slotting
[23:16:47] <RyanS> So perhaps it's more crucial on large chucks? I have a 5 inch chuck
[23:16:48] <jdh> http://www.grizzly.com/products/Drill-Mill-with-Stand/G0704
[23:17:25] <toastyde1th> jdh, fuck around with it - drop it into the lowest gear and experiment with faster feeds and deeper cuts
[23:18:08] <toastyde1th> the big mistake people make is to say "aha, machinery's handbook says to cut aluminum at 700 sfm!"
[23:18:10] <jdh> I don't think I've ever tried low gear (it only has low/high), variable DC
[23:18:27] <toastyde1th> the 700 is a maximum recommended value
[23:18:34] <toastyde1th> you can cut any material slower, but it's ill advised to go faster.
[23:18:51] <toastyde1th> and the more chip load you can put on the tool, the lower the horsepower per volume will be
[23:18:58] <toastyde1th> (thus removing more material per minute)
[23:19:18] <Connor> jdh whatcha making ?
[23:19:26] <jdh> I've seen videos of people cruising through with huge end mills and deep cuts, but mine seems anemic
[23:19:38] <jdh> connor: new boat ladder
[23:19:47] <toastyde1th> ryans, it's more about what you're asking the machine to do - a big machine can be asked to do more, so it can run into weirder problems
[23:19:58] <Connor> Type of endmill makes a diff too.. HSS vs Carbide...
[23:20:04] <toastyde1th> a small machine will never be pushed to the point where a mild steel adapter is the limiting element
[23:20:06] <jdh> all I have are HSS
[23:20:21] <toastyde1th> is your machine cnc or manual
[23:20:34] <toastyde1th> the hss/carbide thing is largely a bunch of shit if you're not really hauling ass.
[23:20:57] <toastyde1th> they require different considerations to get the same results, that's about all you have to be aware of
[23:21:07] <jdh> now I need to find someone that can weld 0.5" Al plate
[23:21:18] <Connor> jdh and are you milling just one side?
[23:21:32] <jdh> Connor: I don't understand
[23:21:41] <Connor> or trying to take a .5" cut through the middle.. ?
[23:21:54] <jdh> oh, not really related
[23:22:03] <jdh> cutting the profile took forever
[23:22:27] <Connor> I've done .5" in a single pass on a profile with 1/2" HSS..
[23:22:36] <jdh> how fast?
[23:22:53] <jdh> and what spindle speed?
[23:22:56] <Connor> but, I don't know how far in I was.. maybe .1"
[23:23:02] <toastyde1th> i think the most i've ever taken off is .4" deep, 4" wide, and 80 ipm
[23:23:02] <RyanS> We have lots of stainless steel if that would be preferable....
[23:23:19] <toastyde1th> RyanS, no steel is preferable - but all steel will WORK
[23:23:33] <toastyde1th> collets are often steel, to no ill effect
[23:23:35] <toastyde1th> chuck jaws, too
[23:23:44] <jdh> why no steel? just for dampening with the cast iron?
[23:23:47] <toastyde1th> ya
[23:23:54] <Connor> I think that was when I was making the stepper mounts.. and spacer block.. so, that was manual..
[23:24:10] <toastyde1th> like, i wouldn't hesitate to use steel if i needed an adapter. getting something to WORK is more important than being ideal
[23:24:29] <toastyde1th> but if someone asked me, oi, i need to order material, what do i get, i'd say gray iron.
[23:24:38] <jdh> http://tinyurl.com/p6ztw9p
[23:24:39] <Connor> so, it would have been pretty slow
[23:24:57] <jdh> I'm planning on chamfering the tabs also so the bead can be mostly flush
[23:25:04] <RyanS> Someone made theres out of aluminium which is probably the worst choice..
[23:25:14] <toastyde1th> alu is REALLY BAD for fixturing
[23:25:19] <toastyde1th> like, actively a poor choice
[23:25:34] <toastyde1th> i have had shit fly apart mid-cycle because of aluminum fixturing
[23:26:11] <toastyde1th> not because it's weak or anything, but because of fatigue stress
[23:26:19] <RyanS> Maybe I should try copper :P
[23:26:29] <toastyde1th> copper would probably be a better choice than aluminum
[23:26:50] <RyanS> It's softer however
[23:26:55] <toastyde1th> doesn't matter
[23:27:08] <toastyde1th> I'd take stripped threads, jammed, bent, etc over "flew apart because the thread outright failed"
[23:27:18] <toastyde1th> which is how aluminum fixtures fail
[23:27:46] <Connor> I'm going to use Alum for a chuck adapter.. but, it's going on a 4" rotary table with a 4" chuck... not allot for speed..
[23:27:48] <toastyde1th> a 25 pound block of aluminum sailing across the shop because the bolts tore out from stress fractures isn't fun
[23:29:37] <toastyde1th> I'd just flat out recommend not using aluminum for anything you plan on having around for 5+ years, seriously
[23:29:48] <toastyde1th> threads will tear out even with light loading/unloading
[23:30:05] <RyanS> this one uses three bolts, I would have thought a cast-iron, steel anything that isn't hardened you are going to strip the threads after a a few dozen chuck changes"?
[23:30:38] <toastyde1th> the issue isn't stripping threads
[23:30:41] <toastyde1th> the issue is stress fractures
[23:30:53] <toastyde1th> i'll take a stripped thread any day over a stress fracture
[23:31:29] <toastyde1th> the thread will still be intact, but a whole chunk of alu will just... come away with the thread inside it
[23:32:02] <Connor> RyanS: what kind of chuck adapter?
[23:32:41] <RyanS> The spindle nose is 4 inch and I am mounting a 5 inch
[23:32:55] <toastyde1th> D4 to D5, A4 to A5... L-something?
[23:33:00] <Connor> for a lathe ?
[23:33:32] <Connor> mine is a through bolt setup... so, not threads on the adapter at all..
[23:33:46] <RyanS> yeah the same thing
[23:34:02] <Connor> just 4 U shapped holes for bolting to the rotary table, and 3 through holes to bolt the chuck too.
[23:34:04] <toastyde1th> ryans, what is the actual spindle nose designation
[23:34:06] <RyanS> But I was thinking about the threads in those bolt holes
[23:34:55] <RyanS> Don't know 'Chinese standard'perhaps :p
[23:35:21] <toastyde1th> lol you ought to find out
[23:35:21] <Connor> So, no threaded holes in the alum adapter plate ?
[23:35:29] <toastyde1th> can you post a picture
[23:36:45] <toastyde1th> because A and D series spindles are not super huge fans of adapter plates
[23:36:56] <toastyde1th> iirc you'd have to machine a new spindle nose on the plate
[23:39:30] <toastyde1th> although i guess some of the smaller D series spindles use backing plates
[23:39:31] <toastyde1th> A series don't
[23:39:42] <RyanS> It looks like this but three holes http://www.mini-lathe.com/Mini_lathe/Chucks/Back_plate/Spindle_.jpg
[23:40:16] <toastyde1th> that looks like a backing plate, not the spindle itself
[23:41:06] <toastyde1th> which makes me guess it's that weird atlas threaded spindle nose
[23:41:16] <toastyde1th> or whoever did it first
[23:41:40] <RyanS> http://qdprosper.en.alibaba.com/product/348835280-210309955/BV20_1_BV20L_1_Bench_Lathe.html
[23:41:47] <RyanS> This is the machine
[23:42:27] <toastyde1th> yeah it doesn't tell you what spindle nose it has
[23:42:43] <toastyde1th> i THINK it has a threaded nose, which is common for small machines but i forget all the specs
[23:43:16] <RyanS> As far as I can tell them that mounting plate is part of the spindle shaft and goes into the headstock
[23:43:27] <RyanS> I will have to check
[23:43:33] <toastyde1th> i'd bet $100 that the backing plate screws on
[23:43:45] <RyanS> brb
[23:44:39] <toastyde1th> and iirc is a standard right hand thread
[23:44:58] <toastyde1th> put the t handle in the chuck, whack it with a hammer, and it should pop right off