#linuxcnc Logs

Aug 15 2022

#linuxcnc Calendar

02:35 AM mrec: does anyone know why the tool is not visible within axis sometimes? I can see the path is being followed (it'
02:44 AM mrec: it's adding more red lines)
02:44 AM mrec: this sometimes especially happens in lathe mode
04:30 AM Tom_L: morning
04:45 AM JT-Cave: morning
04:46 AM Tom_L: i didn't post an iso but did test the linuxcnc menu changes etc
04:47 AM JT-Cave: cool
04:49 AM JT-Cave: opps you left out sudo apt install live-build
04:52 AM Tom_L: i must have done that on the first attempt and forgot i installed it
05:49 AM JT-Cave: it takes a bit to build the iso even on this pc
06:00 AM t4nk_fn: what are you all messing around with these isos for all the time man?
06:03 AM t4nk_fn: mmm, I don't have a dvd player anymore at all.. which isn't completely nice either I guess hehe
06:04 AM t4nk_fn: I demolished them all for the little steppers
06:27 AM mrec: Tom_L: are you using PWM or analog voltage to control the DBLS09?
06:28 AM mrec: I did not get around to fully interface the controls yet I'm still using the buttons on the menu
07:01 AM Tom_L: analog
07:02 AM Tom_L: t4nk_fn, put them on a sd
07:03 AM t4nk_fn: yeah, that's how I do it these days, just on a stick
07:04 AM t4nk_fn: I still have nightmares about having 60000 cds of an OS
07:04 AM t4nk_fn: all of them outdated before they finished burning
07:05 AM t4nk_fn: been on a rolling release distro for like 5years now, installed once and still going strong
07:05 AM t4nk_fn: I'm never going back either
07:17 AM Tom_L: the iso is a gap filler to the installable versions to come
07:59 AM JT-Cave: this guy buys a 4 pound air filter kit from me and complains that the shipping is way too high
08:00 AM JT-Cave: and he lives in the north east
08:12 AM mrec: tell him he can pick it up for free
08:23 AM JT-Cave: I should tell him to buy is somewhere else with potentially cheaper shipping... but I'm the only one in the world that sells that product :)
08:47 AM roguish[m]: JT-Cave: ask him to give you his personal Fedex or UPS account number to charge to.
09:37 AM tjtr33: is there a log for #linuxcnc #linuxcnc-dev?
09:54 AM roguish[m]: tjtr33: yes. Tom_L handle that,
09:57 AM tjtr33: rouguish: thanks, is there an url to access the logs?
10:48 AM JT[m]: Just say log in the linuxcnc-devel channel
11:52 AM tjtr33: JT thanks but doesn't do anything ( log /log \log )
11:54 AM tjtr33: midnight here
01:08 PM -!- #linuxcnc mode set to +o by ChanServ
01:09 PM ChanServ changed topic of #linuxcnc to: LinuxCNC is a linux-based open-source CNC control. | Latest release: 2.8.3 |http://www.linuxcnc.org | Only registered accounts may speak
01:09 PM -!- #linuxcnc mode set to -o by Tom_L
01:12 PM Tom_L: you can also do 'index'
01:12 PM CaptHindsight[m]: works from matrix
01:30 PM djsftree[m]: Hi! Robot joints topic. Is there anyway I can offset joint_1 by 90degs? I have the robot set up with correct DH params but as I had to ignore the theta values the robot points down. The problem is the robot has absolute encoders. So, I want to offet "theta" manually. ie when joint_1_pos_fb = 0 , linuxcnc sees the joint value as -90.
01:31 PM djsftree[m]: I have to do this as internally the absolute encoders limit the physical machine.
01:32 PM djsftree[m]: I guess what I'm trying to say can I offet the "machine cordinates" at startup somehow?
01:36 PM * djsftree[m] uploaded an image: (169KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/CfKwXSPNVQvtInoVmjDFqaEP/image.png >
01:37 PM CaptHindsight[m]: oh yeah since the bot uses absolute encoders
01:38 PM CaptHindsight[m]: one might be a HAL module that does the offset for that joint
01:39 PM djsftree[m]: is RS274NGC_STARTUP_CODE useful for this?
01:39 PM CaptHindsight[m]: rotate the encoder 90 deg in the arm :)
01:40 PM djsftree[m]: ha
01:41 PM CaptHindsight[m]: https://forum.linuxcnc.org/gmoccapy/33456-startup-code
01:41 PM CaptHindsight[m]: so maybe
01:43 PM djsftree[m]: or
01:43 PM djsftree[m]: JOINT COMP_FILE
01:44 PM djsftree[m]: somehow set the pos and neg movemes to offset 90
01:44 PM CaptHindsight[m]: dunno I'd have to reread, the LCNC part of my memory must be under repair or reformatting right now
01:46 PM djsftree[m]: [JOINT_1]... (full message at https://libera.ems.host/_matrix/media/r0/download/libera.chat/7d3ad15605c397ac50c0b920a4b2f40c14493f25)
01:52 PM djsftree[m]: # COMP_FILE_TYPE 1
01:52 PM djsftree[m]: # cmd-pos neg offset posoffet
01:52 PM djsftree[m]: 0 -90 -90
01:52 PM CaptHindsight[m]: djsftree: post on the forums for better results
01:52 PM djsftree[m]: * COMP FILE TYPE 1
01:52 PM djsftree[m]: cmd-pos neg offset pos offet
01:52 PM djsftree[m]: 0 -90 -90
01:52 PM CaptHindsight[m]: but if you have wood-shop questions, this is the palce
01:55 PM jpa-: djsftree[m]: there is the hal component "offset" that could work
01:55 PM jpa-: http://linuxcnc.org/docs/ja/html/man/man9/offset.9.html
01:59 PM djsftree[m]: awesome!
02:19 PM CaptHindsight[m]: djsftree: it worked?
02:19 PM roycroft: some of also know a bit about animal husbandry as well, specifically domesticated junglefowl
02:24 PM cradek_: made a backup of the config etc before moving my VMC, and found that it's running v2.5.0
02:25 PM cradek_: also read out and wrote down all the non-default VFD settings, I have no idea how I knew to set that up, would be a disaster if it forgot its settings.
02:30 PM ZincBoy[CAON][m]: That is a venerable version 🙂 What VMC are you running?
02:37 PM CaptHindsight[m]: I've reinstalled over forgotten configs and did a better job the 2nd time
02:59 PM roguish[m]: oh joy. 92 and going up....... tomorrow forecast 100+
03:04 PM CaptHindsight[m]: best August here I can recall, 70's days and 50's at night
03:06 PM Tom_L: sure wasn't this year.
03:06 PM XXCoder: thurs 92f bah :( the closer to tosay i9t, the hotter. it was orginially 85f lol
03:06 PM XXCoder: today it is,
03:07 PM Tom_L: 100F here
03:08 PM Tom_L: i feel at this point if it drops below 90 i may catch pneumonia
03:08 PM XXCoder: hothouse human ;)
03:09 PM Tom_L: what's that candy that claims 'melts in our mouth, not your hand'?
03:09 PM Tom_L: i call bs...
03:10 PM XXCoder: its now melt in hand, boil in mouth
03:12 PM perry_j1987: this techno isel lathe has a full enclosure.. man that thing is loud running a fly cutter inside there
03:12 PM Tom_L: On July 2nd, 1980, the high was 98. Had the high reached 100, a new all-time record for consecutive 100+ degree high temperatures would have been set at 27 days, which would have shattered the previous record of 20 set August 7th-26th, 1936.
03:12 PM cradek_: it's a mori MV Jr.
03:13 PM Tom_L: cradek_, yours?
03:13 PM cradek_: yeah, I tried to give it away, but the guy said oh just keep it at my shop, we can all use it.
03:14 PM Tom_L: should be a nice sturdy vmc
03:14 PM cradek_: it's awesome, I converted it in 2008 or so
03:14 PM cradek_: all linear rails, huge ballscrews
03:15 PM Tom_L: bearings all still good?
03:15 PM cradek_: yeah, no measurable backlash anywhere
03:15 PM Tom_L: nice
03:15 PM cradek_: it's been sitting for a while, I need to make sure everything is getting oil
03:16 PM cradek_: also moving my HNC
03:16 PM Tom_L: at least go out and warm it up a while
03:16 PM cradek_: what a mess (lost my shop, everything had to go)
03:16 PM Tom_L: :/
03:17 PM CaptHindsight[m]: oh no
03:17 PM ZincBoy[CAON][m]: Nice machine, very similar to mine with the half-enclosure.
03:17 PM CaptHindsight[m]: https://www.youtube.com/watch?v=4m4d1ZnqN80 i see these on ebay more often now
03:18 PM cradek_: that's the one
03:19 PM CaptHindsight[m]: have to move my shop as well, hate this location
03:21 PM perry_j1987: shop moves are never fun
03:24 PM CaptHindsight[m]: finding industrial space with decent internet is difficult around here
03:27 PM perry_j1987: ya i have to run cellphone hotspot at mine heh
03:27 PM perry_j1987: rly sucks
03:27 PM jdh: I moved (house) last week. Was hoping to sell my G0704 first but never had a chance.
03:28 PM perry_j1987: i might be interested in a g0704
03:28 PM CaptHindsight[m]: Comcast might be 100 yards short of the building and wants $12k to bring it to you
03:28 PM jdh: New garage is smaller. Did unload my jet 9x20 a d a drill press
03:28 PM perry_j1987: what'd you get for the 9x20
03:28 PM jdh: perry_j1987: 28409 come buy it
03:28 PM perry_j1987: thats basically whats in this techno isel lathe i got
03:29 PM perry_j1987: you want 28k for a g0704? :P
03:29 PM perry_j1987: you plate it in gold lol?
03:29 PM perry_j1987: oh thats prob a zipcode hah
03:44 PM roycroft: i'm not interested, which is good, because it would cost me much more in fuel to drive there to pick it up than it is worth
03:45 PM perry_j1987: where your at you could just drive up to grizzly themselves roycroft :P
03:45 PM XXCoder: roy get a ev truck ;)
03:48 PM CaptHindsight[m]: will be nice in the future when you can just 3d print a mill
03:49 PM XXCoder: you can now
03:49 PM XXCoder: theres that cnc mill project thats heavily printed and uses 80/20 extrusions
03:49 PM XXCoder: https://youtu.be/wZ7WcFxSc6I
03:50 PM roycroft: so i can stop every four hours and recharge it?
03:50 PM XXCoder: problem with that one is that it uses so many extrusions that it probably cost more than used mill lol
03:51 PM XXCoder: roy wouldnt you still need to stop each few hours to refuel with fuel car anyway
03:51 PM XXCoder: I certainly did
03:52 PM ZincBoy[CAON][m]: Yes, those are usually just for people that want to build a machine and not use one. Much like boat hulls, machine frames are usually the lowest cost part of the system and the place people try to DIY.
03:53 PM XXCoder: honestly that machine range is bit too small. I think can reclaim say 50mm by making x axis block to block distance shorter
03:54 PM roycroft: with the battery technology being used currently, refueling a ice is a lot faster than recharging an ev battery pack
03:54 PM Tom_L: i recently got some 3d printed metal parts i had to machine a little bit
03:54 PM Tom_L: cut like cast iron
03:55 PM Tom_L: i'm not quite sure what the composition was but something resembling aluminum
03:55 PM CaptHindsight[m]: might be an alu alloy
03:56 PM XXCoder: chinese $2000 electric truck lol https://www.youtube.com/watch?v=bixJDOH864U
03:56 PM XXCoder: sadly couldnt find that ev truck review
03:56 PM CaptHindsight[m]: there a co in the NW US that has a like 150 lasers sintering the bed of powder at the same time for rapid printing
03:58 PM XXCoder: that ev comes with lots free scrap metal
03:58 PM CaptHindsight[m]: might be https://velo3d.com/
03:59 PM CaptHindsight[m]: https://3dprint.com/293274/metal-3d-printing-firm-velo3d-announces-impressive-q2-earning/
04:19 PM roycroft: we still have that relatively cheap hydroelectric power from bpa
04:20 PM roycroft: that's why a lot of plants that rely heavily on electicity are located in the northwet
04:20 PM * roycroft remembers there's a huge aluminium plant up near where he lived in bellingham
04:22 PM roycroft: alcoa, they have a huge plant near ferndale washington (just north of bellingham) and a huge plant in wenatechee (east of seattle, just the other side of the cascades)
04:25 PM CaptHindsight[m]: not bad resolution https://3dprint.com/293035/markforged-buys-digital-metal-what-does-it-mean-for-the-3d-printing-industry/
04:26 PM CaptHindsight[m]: Tom_L: did you parts look similar or less powderlike
04:35 PM Tom_L: they looked filled in better than those
04:35 PM Tom_L: i have a pic but not a good one of the cut side and they're powdercoated
04:42 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/Bracket.jpg
04:42 PM Tom_L: the prints were ok but whoever tapped them did a shitty job
04:42 PM Tom_L: one was stripped out about halfway down
04:43 PM XXCoder: fixing for fun and profit
04:44 PM CaptHindsight[m]: helicoles
04:44 PM CaptHindsight[m]: helicoils
04:44 PM Tom_L: longer screw
04:44 PM CaptHindsight[m]: auto-correct damn
04:44 PM roycroft: jbweld
04:45 PM Tom_L: or send em back for another just as crappy set?
04:45 PM CaptHindsight[m]: WTF, they actually sent you a part with stripped threads?
04:45 PM Tom_L: uh huh
04:46 PM Tom_L: not me but yes
04:47 PM roycroft: you say stripped, i say quick release
04:48 PM roguish[m]: always the optimist
04:49 PM Tom_L: damn woodworker's mentality :)
04:49 PM Tom_L: they were about .060" oversize on that length too
04:50 PM roycroft: it's funny
04:50 PM roycroft: in a machinist environment i get accused of having woodworker's mentality
04:50 PM Tom_L: hehe
04:51 PM roycroft: in a woodworking environment i get accused of having machinst's mentality
04:51 PM Tom_L: acording to roguish that's a win win for you
04:51 PM roycroft: that was a big part of my problem with the bandsaw table
04:52 PM roycroft: and it took me a while to figure it out, because i guess i'm slow on picking up clues
04:52 PM roycroft: when i would say the back of the slot was 0.007" higher than the front, eyes would roll and i would be reminded that this machine is for wood, not metal, and that 0.007" does not matter
04:53 PM roycroft: when i finally said "i can't shove the piece of wood through the blade because it gets stopped by the back of the slot" they paid more attention
04:54 PM roycroft: the lesson here is that when you use a number with one or more leading zeroes when talking to a woodworker, you lose the conversation, because they tune you out instantly upon hearing the zeros
04:55 PM Tom_L: talk to them in 1/128ths
04:57 PM roycroft: sadly, most woodworkers seem to think that 16ths is more precise than is ever necessary
04:57 PM roycroft: "wood moves"
04:57 PM roycroft: they use that excuse
04:57 PM Tom_L: in predictable ways
04:57 PM roycroft: yes
04:58 PM Tom_L: sad to say though, most of the 'good' wood is gone
04:58 PM roycroft: and good furniture design accomodates that movement
04:59 PM Tom_L: i doubt anybody seasons it like it used to be done
05:00 PM Tom_L: same with cast iron
05:00 PM roycroft: actually a lot of folks still season it properly
05:00 PM roycroft: but there's definitely a lot of kiln dried wood around now
05:00 PM roycroft: and even worse, vacuum kiln dried
05:10 PM CaptHindsight[m]: I spent 15 minutes on the phone with Comcast to check on service availability
05:10 PM CaptHindsight[m]: still didn't get an answer
05:11 PM CaptHindsight[m]: they just keep you on the line to talk about service and get your info
05:11 PM CaptHindsight[m]: family size, # of TV's, what channels you watch etc etc
05:11 PM roycroft: it seems to me you got your answer
05:12 PM CaptHindsight[m]: I told them that Satan was after me and was in a hurry
05:12 PM CaptHindsight[m]: they could not confirm service availability
05:18 PM Tom_L: i though nelson did all that
05:18 PM Tom_L: neilson?
05:19 PM perry_j1987: roycroft https://www.thingiverse.com/thing:4637092/files
05:24 PM XXCoder: thingverse finally fixed download all thing
05:37 PM perry_j1987: you could always append .zip to the end of a link
05:45 PM roycroft: those boxes look similar to mine
05:46 PM roycroft: putting the tab on the front of the box instead of the back seems like it would be rather awkward
05:46 PM roycroft: and i know you can just turn them around, but i wonder why the person put them in the front
05:46 PM perry_j1987: hmm
05:46 PM perry_j1987: some people like to use their fingers to pull them out rather than their thumb i guess
05:46 PM perry_j1987: your fingers make pretty good hooks lol
05:46 PM roycroft: i suppose
05:47 PM roycroft: i have a big radius on the bottom of the front of mine
05:47 PM roycroft: it's really easy to pull things out with a thumb or finger
05:47 PM roycroft: they just "roll" up the front edge
05:55 PM perry_j1987: going to measure the drawers out at the shop and make up a set that fit perfect for one of the drawers and see what i think of them
06:01 PM JT-Shop: ender 3 upgrade almost done... filament sensor installed
06:04 PM roguish[m]: 99.5 outside right now......
06:04 PM roycroft: it's gonna get hot here mid-week
06:05 PM roycroft: but it's tolerable right now
06:05 PM roguish[m]: not outside, in with my new AC.. so it's tolerable now
06:06 PM roycroft: it's nice that that rbtx99 person sees the benefit of making different size boxes in exact multiples of each other
06:06 PM roycroft: it's such a simple and obvious concept
06:07 PM roycroft: i still don't understand why the commercial offerings don't do that
06:07 PM JT-Shop: high in the mid 70's for the next couple of days
06:18 PM Tom_L: 101F
06:19 PM Tom_L: cold front moving in... 90ish the rest of the week
06:31 PM JT-Shop: all right the ender 3 is back online
06:31 PM * JT-Shop calls it a day
07:19 PM roycroft: so we had spider robots a couple weeks ago
07:20 PM roycroft: now we have this: https://www.youtube.com/watch?v=1SgGfMlbCoM
07:22 PM XXCoder: perry_j1987: they removed that again I think. so auto downloaders dont work anymore
07:22 PM XXCoder: tested. its just zip and not .zip
08:43 PM CaptHindsight[m]: tapped an M3 hole 5mm through, then took 5 minutes to get a M3x5 hex socket screw to thread the 5mm, then 5 more minutes to get the m3x5 setscrew to make it the 5mm
08:44 PM CaptHindsight[m]: it's like the screws kept getting thicker
08:44 PM CaptHindsight[m]: or the aluminum was shrinking
08:52 PM XXCoder: why is it exclusive or
09:14 PM Alicrow-phone: Hi y'all
09:14 PM XXCoder: hi
09:15 PM Alicrow-phone: So, there's no auto-tuning utility for PIDs in LinuxCNC?
09:16 PM Alicrow-phone: To be honest, I'm not very good at this parameter tuning stuff. Took an Artificial Intelligence independent study in college, but never got any of the models to tune right.
09:24 PM CaptHindsight[m]: Alicrow-phone: no too many differences between servos
09:24 PM CaptHindsight[m]: and how you wish them to behave
09:26 PM CaptHindsight[m]: I am working on a servo stepper system now where there may be a 5mm difference between the position the stepper is commanded to and what the encoders actually read for a short time
09:26 PM CaptHindsight[m]: it's a very springy system
09:28 PM CaptHindsight[m]: during synchronized motion the system is very rigid, but in certain non-synchronized moments motion can jerk and then more slowly come back into synch
09:53 PM * CaptHindsight[m] uploaded an image: (44KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/IaUwaWxSrcADAQhiMnqECMMH/ly-04Aug2022-954091.png >
09:53 PM CaptHindsight[m]: LCNC 2.9 on Gentoo
10:09 PM CaptHindsight[m]: none of these are metric https://www.grizzly.com/products/grizzly-7-pc.-adjustable-reamer-set/h5938
10:44 PM unterhaus: I wonder how long those reamers would last on steel
10:47 PM CaptHindsight[m]: HSS blades oh not metric and not carbide
10:48 PM CaptHindsight[m]: https://www.carbideanddiamondtooling.com/Adjustable-Blade-Reamers_c_563.html
10:49 PM CaptHindsight[m]: these are much better
11:04 PM roycroft: i bought a set of hf adjustable reamers years ago
11:04 PM roycroft: if i recall, i didn't even wait until the next day to return thm
11:14 PM roycroft: those grizzly ones look a bit crunchy
11:18 PM XXCoder: lol https://youtu.be/YhwthSaLgh4 100,000 scale miles to see how long rv cars go
11:31 PM roycroft: wtf?
11:31 PM roycroft: that youtube link started with ads
11:31 PM roycroft: apparently my ad blocker stopped working
11:32 PM XXCoder: youtubes been working on that. it pops up but fails to play ads for me on combo of ublock and youtube enchanced
11:32 PM roycroft: i'll have to see if i can update things
11:33 PM roycroft: i mean, i've been willing to deal with the ugliness that is firefox to avoid the ads
11:38 PM XXCoder: i generally dont care about looks, only usablity
11:39 PM roycroft: aesthetics are important to me