#linuxcnc Logs
May 03 2023
#linuxcnc Calendar
12:49 AM -!- #linuxcnc mode set to +v by ChanServ
08:04 AM -!- #linuxcnc mode set to +v by ChanServ
12:46 PM JT[m]: I'll have to check them out
12:46 PM Lcvette[m]: They also have dhl, fedex, ups and a bunch of others built into their module
12:46 PM Tom_L: Cool fort
12:52 PM JT[m]: Downtown San Juan looks like the French Quarter in New Orleans
01:33 PM -!- #linuxcnc mode set to +v by ChanServ
01:35 PM Unterhausen: is there a leetcode irc client that gives you 3sp3cialky instead of especially?
01:35 PM Unterhausen: I need a leet spell checker code
01:38 PM rmu: 7h47 \/4r|4n7 0f l337 |5 n07 kn0wn 70 m3
02:25 PM roycroft: i believe there is an irc mode for emacs, as well as a 31337 mode
02:25 PM roycroft: i do not know if the two get along well
02:27 PM roycroft: https://www.maketecheasier.com/use-irc-in-emacs-with-erc/
02:28 PM roycroft: i'm not seeing the 31337 mode offhand, though
02:28 PM roycroft: i'm sure it used to exist, but that was a good 25 years ago, so it may no longer be
02:28 PM roycroft: it shouldn't be difficult to write one, though - it's just a small minor mode that does some character translations
02:51 PM -!- #linuxcnc mode set to +v by ChanServ
03:32 PM -!- #linuxcnc mode set to +v by ChanServ
03:35 PM Tom_L: JT-Shop, Yeah we walked through town on the way back
03:35 PM Tom_L: Internet is not great right now
03:46 PM JT-Shop: a little bit is better than nothing
03:49 PM -!- #linuxcnc mode set to +v by ChanServ
03:51 PM roycroft: welcome to amercia
03:51 PM roycroft: one mass-shooting manhunt has ended
03:51 PM roycroft: another mass-shooting manhunt has just begun
03:52 PM Tom_L: Plenty to go around
04:03 PM JT-Shop: fucking windblows sucks no internet connection again and linux has no problem
04:06 PM Loetmichel: Scopeuk: yeah, ironic for sure. But a consequence of the old bosses "budget grant" policies. aka: "do it with no budget at all or pay it from your pocket, not my problem"
04:06 PM Tom_L: Win 10?
04:06 PM JT-Woodshop: 7
04:06 PM Loetmichel: there is a reason that the 4 printers are Ender3s and not prusas.
04:07 PM Tom_L: Never had a problem with 7 internet
04:08 PM Tom_L: Just out here in the middle of nowhere
04:09 PM JT-Woodshop: where to next?
04:09 PM Tom_L: Umm.. St Maarten
04:10 PM Tom_L: Still in port here till 6:30edt
04:13 PM Tom_L: Oh.. I did get a behind the scenes ship tour. Did that once before when the boys were younger.
04:14 PM Tom_L: Youngest got to steer the ship a bit
04:15 PM roycroft: i don't know if this is still the case, but i used to have issues with windows networking all the time when using windows home edition, but those problems would go way when i switched to the same version of windows pro
04:15 PM JT-Shop: that's pretty cool
04:15 PM Tom_L: Last day event
04:15 PM JT-Shop: win 7 pro
04:15 PM roycroft: i've been using windows pro exclusively for several versions now, so that may be something they improved or fixed
04:15 PM Tom_L: It was their idea
04:15 PM JT-Shop: and it's fucked up so maybe I need to reinstall again... and again and again
04:16 PM Tom_L: I'm running 7 pro
04:17 PM Tom_L: Did you try reinstalling the driver
04:17 PM JT-Shop: what driver?
04:18 PM Tom_L: For the card
04:18 PM JT-Shop: hmm onboard nic
04:18 PM Tom_L: In Device manager
04:19 PM Tom_L: Ma or may not help
04:19 PM JT-Shop: windblows thinks the driver is up to date
04:24 PM roycroft: https://roycroft.us/ReinstallingWindows.mp3
04:26 PM Tom_L: :) site can' t be reached from here... no real surprise
04:28 PM roycroft: it'll still be there when you get back to kansas
04:28 PM roycroft: but i'm not blocking it, i don't think
04:28 PM Tom_L: No, I'm sure it's on this end
04:29 PM rmu: windows networking always had strange issues. like closing all TCP connections upon link loss for the shortest amount of time
04:30 PM roycroft: microsoft shamelessly took the bsd networking code, stripped it of its copyrights, added their own, and then broke it
04:31 PM JT-Shop: I don't keep any data on the windblows pc so no prob just reinstall the crappy os
04:31 PM roycroft: so you're the guy in the poem i just posted
04:31 PM * roycroft never knew jt-shop was from manchester
04:31 PM rmu: i vaguely remember a procedure like removeing ACPI root from device manager or something like that, that would cause all drivers to be "reinstalled"
04:32 PM JT-Shop: quite possibly but I have my new wheels on order and he does not
04:33 PM JT-Shop: anyway time to make some chicken crack
04:39 PM Tom_L: Later...
04:44 PM JT[m]: Ok
04:45 PM JT[m]: JT gives up on the irc for the night and watches the dead pine tree
04:48 PM * JT[m] uploaded an image: (230KiB) < https://libera.ems.host/_matrix/media/v3/download/matrix.org/PCOJCiZvzMgTIdeXDmcTxTnG/20230503_164806_5479041622468337778.jpg >
05:39 PM CloudEvil: https://www.youtube.com/watch?v=wRRcd5AMjko
05:39 PM CloudEvil: Designing High-Performance Linear Actuators: Speed & Stiffness for my Juggling Robot | PDJ#19
05:55 PM JoseIgnacioRomer: I keep getting joint following errors on a machine with mesa card
06:19 PM roguish[m]: Jose Ignacio Romero: Servo or stepper ???
06:57 PM Unterhausen: doesn't that sometimes point to a communications problem depending on the mesa card?
07:01 PM roycroft: today is cinco de mayo eve eve
07:01 PM * roycroft heads off to the mexican restaurant to meet his friends for dinner
07:01 PM roycroft: there is no star wars themed restaurant in town, so we could not do a may the fourth be with you eve dinner
07:09 PM CloudEvil: Technically, isn't any restarant in a wretched hive ond villany star-wars themed?
07:10 PM skunkwor1s: JoseIgnacioRomer: This is usually caused by the stepgen max accelleration not 20% or more higher than the axis accelleration
07:12 PM JoseIgnacioRomer: Stepper and nice pointer skunkwor1s
07:14 PM JoseIgnacioRomer: How do i check stepgen acceleration?
09:41 PM JoseIgnacioRomer: oh found it in the ini file
09:42 PM JoseIgnacioRomer: why would there be a second limit on the stepgen since the linuxcnc motion controller is in control?
09:42 PM JoseIgnacioRomer: is this to act as a check against linuxcnc?
09:44 PM Unterhausen: a joint and an axis aren't always the same thing
09:44 PM JoseIgnacioRomer: yeah i know, but why enforce accel limits at the step generator?
09:44 PM JoseIgnacioRomer: linuxcnc already limits joint acceleration
09:48 PM -!- #linuxcnc mode set to +v by ChanServ
09:54 PM CaptHindsight[m]: Jose Ignacio Romero: might have just been a developers choice, it works, so they went on to something else
09:55 PM CaptHindsight[m]: doesn't hurt anything
09:56 PM JoseIgnacioRomer: the machine estoping in the middle of the cut tells me otherwise :D
09:57 PM JoseIgnacioRomer: i am gonna get a better pc for this though, the heart of it is probably still that it is too jittery in the servo thread and sometimes it gets unlucky. it usually happens when there is a lot of short moves
09:57 PM JoseIgnacioRomer: using G64 with some parameters seems to help
09:58 PM CaptHindsight[m]: Jose Ignacio Romero: are you software stepping with the LPT port?
09:58 PM JoseIgnacioRomer: no, mesa ethernet
09:59 PM CaptHindsight[m]: what rate is your servo thread?
09:59 PM JoseIgnacioRomer: servo thread is jittery though, i had to increase the period to 1.5ms to not get comms dropouts :3
09:59 PM CaptHindsight[m]: oh then maybe
09:59 PM JoseIgnacioRomer: i guess i could make it even slower, the maximum rapid is 100IPM
10:01 PM CaptHindsight[m]: Jose Ignacio Romero: just curious, what work area is this mill?
10:01 PM JoseIgnacioRomer: 12x6x8"
10:02 PM JoseIgnacioRomer: i am limited by the crappy steppers that are in there, they need much higher voltage if i wanted to push them faster
10:02 PM JoseIgnacioRomer: right now im at 48v
10:02 PM JoseIgnacioRomer: still i am super stoked with 100IPM rapids. i am still learning CNC and the original controller on the machine could only do 40IPM max
10:03 PM CaptHindsight[m]: more better for crashing as well :p
10:04 PM JoseIgnacioRomer: yeah i don't need it to be scary, it runs out of travel pretty fast
10:05 PM CaptHindsight[m]: I goofed the other day and broke a brand spanking new 3/8" endmill using the MPG
10:05 PM JoseIgnacioRomer: ouch
10:05 PM JoseIgnacioRomer: i did that when i didnt see that my idiot postprocessor put a g0 move before turning TLO back on
10:05 PM JoseIgnacioRomer: and my tool offset was over an inch
10:05 PM JoseIgnacioRomer: it rammed the tool into the table
10:05 PM CaptHindsight[m]: I though I had pressed the Z axis button but it was still in X, spun the handle and snap
10:06 PM CaptHindsight[m]: s/though/thought/
10:08 PM JoseIgnacioRomer: one crazy project i have in my mind and i want to do some day is to make a "sensitive" MPG. basically use a small servomotor instead of a simple encoder, and feed back force from the internal state of the machine in linuxcnc. if the machine is all servos you could actually feed back a scaled version of the torque needed to command the position change
10:09 PM CaptHindsight[m]: I'm going to connect a racing wheel and pedals, or a flight stick and have milling races
10:09 PM JoseIgnacioRomer: but even for stepper machines you could at least simulate the inertia and aceleration limits so you cannot spin the wheel faster than what the machine can keep up, and coarser feed would feel as a higher gear ratio on the handle
10:10 PM JoseIgnacioRomer: another silly thing would be in auto mode use the wheel as a feed override. it will spin at a proportion of the feed rate and you can slow it down by actually grabbing the wheel
10:10 PM JoseIgnacioRomer: and overpowering it
10:10 PM CaptHindsight[m]: how about a force feedback fishing reel?
10:11 PM CaptHindsight[m]: I'm off
10:14 PM JoseIgnacioRomer: haha
10:14 PM JoseIgnacioRomer: well yeah why not