#linuxcnc Logs

Nov 25 2021

#linuxcnc Calendar

12:43 AM Tom_itx is now known as Tom_L
01:15 AM Deejay: moin
01:27 AM randy: morgen
01:28 AM randy: aeeh. morning
04:00 AM * Loetmichel_ feels a bit like robinson crusoe... waiting for friday. MAN this week has no end :(
04:49 AM -!- #linuxcnc mode set to +v by ChanServ
04:49 AM -!- #linuxcnc mode set to +v by ChanServ
04:49 AM -!- #linuxcnc mode set to +v by ChanServ
04:53 AM JT-Cave: morning
04:53 AM JT-Cave: happy thanksgiving
04:54 AM XXCoder: happy thankgiving
04:54 AM JT-Cave: 52°F and raining
04:55 AM JT-Cave: high today is 53°F lol
05:13 AM Tom_L: morning
05:13 AM XXCoder: happy thankgiving
05:13 AM Tom_L: 33F
05:13 AM Loetmichel_: *wheeze* *pant* Loetmichel, the human trash compactor... Boss threw away about 2 cubic meters of Leitz binders... the dumpster is only 1 cubic meter... nothing a bit of jumping in it the fat guy cant solve :)
05:13 AM Tom_L: happy thanksgiving
05:14 AM Loetmichel_: but MAAN am i out of shape :(
05:16 AM Tom_L: hi 45F
05:16 AM enleth: Loetmichel_: pretty much same here yesterday, I had to get a 1m^3 bulged out bag of plastic cutoffs through a 80cm door
05:17 AM enleth: Loetmichel_: then hoist 6 of those, all chock full, into the dumpster, luckily I added a chain fall attachment point above the loading bay
05:21 AM enleth: turns out, when you go into pro-bono manufacturing of face shields for medical workers and make enough to saturate 1/3 of the nation's need for them, you end up with several cubic meters of waste plastic
05:24 AM Loetmichel_ is now known as Loetmichel
06:45 AM JT-Cave: more shuffling to do in the garage today... it's bigger than I thought
09:38 AM Centurion_Dan1 is now known as Centurion_Dan
10:07 AM Tom_L: JT-Cave, surprised it doesn't have it's own home
10:26 AM -!- #linuxcnc mode set to +v by ChanServ
11:07 AM JT-Cave: ran out of flat spots
11:13 AM Tom_L: went to see my bud couple days ago. he was doing some holes for a client -0.000 +.0001 and found out they were checking them with calipers
11:14 AM Tom_L: they way underbid them and wanted him to basically bail em out
11:14 AM Tom_L: he delivered them on a cold morning and told them not to check them right away
11:17 AM Tom_L: finished them to size with a light hone
11:21 AM Tom_L: not just one size either
11:29 AM roguish[m]: good morning all, and happy holiday.............
11:30 AM roguish[m]: got my $100 primerib to put on the bbq rotisserie
11:55 AM roycroft: happy thanksgiving, usians
11:56 AM roycroft: and happy thursday to the rest of you
12:53 PM t4nk_freenode: so I've glued this new bed for my cnc together
12:54 PM t4nk_freenode: I was planning to drill through everything together, including the actual bottom plate
12:54 PM t4nk_freenode: and put some nuts in, so I can remove the plateau and put a 4th axis in
12:54 PM t4nk_freenode: *sigh*
12:55 PM t4nk_freenode: but I've been holding back, because I'm 'scared to drill in the wrong spot'
12:55 PM t4nk_freenode: it's rather crazy
12:56 PM t4nk_freenode: the limit switches on the y-axes are pretty much fixed in their utmost positions, so those 'will always be exact'
12:56 PM t4nk_freenode: but the x-axis has them set somewhere along the rail
12:57 PM t4nk_freenode: so they're prone to move I guess
12:57 PM t4nk_freenode: ...... youknow, it's just that I can't be sure that I'm drilling anything at the right spot, let alone being able to reproduce it
12:58 PM t4nk_freenode: I have never put a piece I cut flush with '0'... because I felt I couldn't trust it
12:59 PM t4nk_freenode: I did it once, placed along a square bracket I had cut and fit at the origin
12:59 PM t4nk_freenode: ..... but I cut into it ;)
12:59 PM t4nk_freenode: so that dream was short lived
12:59 PM Tom_L: drill it in cad first
12:59 PM Tom_L: then you will know
01:02 PM t4nk_freenode: yeah, well, I got that, of course.. so I have the correct locations in mind
01:02 PM t4nk_freenode: I'll drill the holes manually with g-code though
01:02 PM t4nk_freenode: and I put in a normal 6mm drill
01:04 PM t4nk_freenode: but it doesn't solve the problem of how I can be sure to find the same locations on repeat
01:05 PM t4nk_freenode: if I just fix my piece to the plateau, then it won't really matter where it is located exactly
01:06 PM t4nk_freenode: but I have had to put a piece back to make additions once or twice, and the only way I could be sure was to drill new holes into my waste board that coincided with holes in the piece
01:07 PM t4nk_freenode: I'm probably making a fuss about nothing, but I just don't know if that is the way to go about
01:10 PM Tom_L: i'm guessing it's a router for wood and if so accuracy in the tenths isn't an issue anyway
01:17 PM t4nk_freenode: ....better get my best pair of eyeballs out for this one.
01:17 PM * t4nk_freenode puts on his glasses
01:42 PM roycroft: i'd like my cnc wood router to be accurate to 0.003" or better
01:42 PM roycroft: i don't think that's an unreasonable expectation
01:43 PM XXCoder: happy thankgiving
01:43 PM roycroft: same to you
01:46 PM roycroft: 0.001" would be nicer, but i'm not sure i'll get there, at least not on my first one
01:46 PM roycroft: better than that i don't think is necessary for a wood router
01:52 PM * t4nk_freenode homes his machine inbetween holes ;)
01:53 PM t4nk_freenode: (there went my drag chain btw....)
01:57 PM roycroft: cranberries are done and in the fridge
01:58 PM roycroft: i can go work in the shop for a couple hours now
02:16 PM t4nk_freenode: well, holes are in place
03:27 PM t4nk_freenode: now I gotta somehow pop a speed bit with a hand drill from the other side
03:27 PM t4nk_freenode: *sigh*
03:27 PM t4nk_freenode: upside down& at an angle
03:28 PM t4nk_freenode: whilst holding up the entire machine with one hand
03:36 PM t4nk_freenode: (smelled nice when drilling though ;) )
03:37 PM t4nk_freenode: spruce I think
03:38 PM roycroft: the first coat of primer is on the underside of my bandsaw stand
03:39 PM roycroft: if i'm rude and duck out for a few minutes a couple times this afternoon/evening i should be able to get it fully painted today, ready to flip over and do the other side tomorrow
03:39 PM roycroft: setting up my bandsaw on sunday actually looks feasible at this point
03:40 PM roycroft: i'm a patient person, but that machine has been sitting in my van for two weeks now
03:40 PM roycroft: i'd like to set it up and see how it runs before too much longer
03:41 PM roycroft: and i have a nice, wide piece of padouk that i'd like to slice into veneers, which will be an excellent test of the saw - padouk is pretty tough wood
03:41 PM roycroft: if it will slice that cleanly it will slice just about anything cleanly
03:58 PM CaptHindsight[m]: padouk sounds like a town in Massachusetts or a name you might call someone that wears a buffalo plaid floppy wool hat
04:00 PM roycroft: it comes from the indian ocean region
04:00 PM roycroft: it's bright orange when freshly cut, and mellows to a beautiful orang-brown color
04:00 PM roycroft: and if it comes from the andaman islands it has a wonderful spicy aroma when cut
04:01 PM roycroft: but andaman padouk is all but extinct now
04:02 PM CaptHindsight[m]: Rangi ya machungwa in Swahili
04:03 PM CaptHindsight[m]: orang-brown, to me that sounds like a more glamorous name than Padouk
04:04 PM roycroft: the stuff i have is african, not andaman
04:04 PM roycroft: but it's still a very attractive wood
04:04 PM XXCoder: dont transplanting work for andaman padouk
04:04 PM XXCoder: ie turn branch into whole tree by a process of cut then force cut to root
04:04 PM CaptHindsight[m]: Padouk is Burmese
04:05 PM CaptHindsight[m]: a grafter?
04:06 PM CaptHindsight[m]: a person that grafts?
04:06 PM roycroft: i'm sure it could be grown elsewhere
04:06 PM roycroft: but if it's in a different bioregion it's going to grow differently
04:06 PM XXCoder: yeah same reason certain wines can only be grown in certain regions
04:06 PM XXCoder: it tastes different out
04:08 PM XXCoder: once had a small brunch of wine grapes. tasted interesting and more taste than store ones
04:08 PM XXCoder: store ones is big and nearly tasteless
04:27 PM Rhine_Labs: Happy Thanksgiving Fellow Americans or Those Abroad that Celebrate.
04:27 PM XXCoder: happy thankgiving
04:49 PM JT-Shop: took down two wire shelving units in the garage at least now I can get around the truck
04:49 PM JT-Shop: but it looks like an explosion of crap in the garage and machine shop now
04:54 PM Tom_L: clear one mess to make another sounds like true progress
04:54 PM JT-Shop: yep, it's gonna take a while to sort through it all and find a new place for it
04:55 PM JT-Shop: I'm putting the 24" deep racks in the big shop, replacing some 18" deep racks
06:08 PM revcane: hi. I have a pile of cnc mill parts im trying to sort through over the winter, I have four geckodrive g320x's, a cnc4pc C23 cnc break out board and a warp9 smoothstepper board. after reading some of the forums and docs it seems that linuxcnc to the smooth stepper over usb is not an option. I want to run a raspberry pi 4 to run the gcode but it doesnt have a parallel port to connect to the C23 board
06:08 PM revcane: with. I was wonder if you guys had any links to someone who has hacked the gpio to talk to a parallel break out board and if not, maybe you could recommend a different break out board that will talk to my geckodrives and work with the pi instead?
06:10 PM roycroft: mesa 7i96
06:11 PM CaptHindsight[m]: revcane: yeah there is a drawing on the forums
06:11 PM CaptHindsight[m]: the Rpi4 on it's own can't step very quickly in real time
06:12 PM CaptHindsight[m]: you can however offload the stepgen to a STM32 or Mesa FPGA
06:13 PM CaptHindsight[m]: there is even a drawing for Rpi4+ stm32 using common BOB's
06:14 PM revcane: i'll do some searching for those, thanks
06:15 PM CaptHindsight[m]: Rpi4 I believe is 3V IO
06:15 PM CaptHindsight[m]: so the LPT ports are 5V logic
06:16 PM revcane: thats right, it would need more hardware inbetween the pi and the c23 board anyhow, i didnt think of that
06:19 PM CaptHindsight[m]: and you don't need the C23 :)
06:19 PM CaptHindsight[m]: sorry I'm doing too many things at once
06:20 PM CaptHindsight[m]: https://forum.linuxcnc.org/18-computer/42276-remora-rpi-software-stepping-using-external-microcontroller-via-spi
06:20 PM CaptHindsight[m]: https://forum.linuxcnc.org/18-computer/43988-remora-1-0-0-rc-released-for-testing
06:23 PM CaptHindsight[m]: the C3 I believe just does some filtering, level shifting and isolation
06:24 PM revcane: ohhhh sweet that skr board is a common 3d printer board
06:24 PM CaptHindsight[m]: http://cnc4pc.com/Tech_Docs/C23R3_1_USER_MANUAL.pdf
06:24 PM CaptHindsight[m]: yeah
06:24 PM revcane: i guess thats what the remora is using, 3d printer boards
06:24 PM revcane: awesome
06:25 PM CaptHindsight[m]: it is starting to support lots of boards
06:25 PM CaptHindsight[m]: will eventually grow to be a swiss army knife of cheap IO boards
06:36 PM CaptHindsight[m]: and there will also be Mesa for building reliable machines
06:39 PM t4nk_freenode: I refuse to sacrifice excitement for reliability.
06:39 PM t4nk_freenode: :b
06:40 PM * t4nk_freenode wonders how all these cuts made their way to my hand btw
06:40 PM t4nk_freenode: strange
06:41 PM t4nk_freenode: 'my bed is made'
06:42 PM t4nk_freenode: my drag chain fixed
06:42 PM t4nk_freenode: spindle power leads are doubly shrinkwrapped to be sure
06:43 PM t4nk_freenode: so I can now fix the bed, or shift it up by 50% to expose 6 nuts in the bottom plate to fix my 4th axis
06:52 PM Tom_itx: t4nk_freenode, excitement causes blood loss
06:53 PM Tom_itx is now known as Tom_L
06:53 PM t4nk_freenode: lol
06:57 PM CaptHindsight[m]: the blood just moves around, it doesn't really get lost
06:58 PM CaptHindsight[m]: like money
07:00 PM CaptHindsight[m]: way too many fats and carbs today, and I'm just cooking and snacking
07:05 PM _unreal_: I'm stuffed
07:40 PM revcane: i see the remora and the board it uses, that stuff is awesome, my 3d printer stuff is all on that deal. those boards use a TMC2209 driver to run the steppers, those are a bit smaller than the one ive got for my mill. its a kelling technology KL34-180-90 nema 34. and i've got these geckodrive G320X dc servo drives to go with it. how do I or what kind of info do i need to lookup to know if the TMC2209
07:40 PM revcane: will drive my servos directly and i can get rid of the geckodrive or do i need to find some kinda wiring for the two to interface together
08:02 PM t4nk_freenode: the 2209's are probably not very good with that I guess
08:04 PM t4nk_freenode: but if those drives have a step/dir interface then I guess you should be fine
08:04 PM CaptHindsight[m]: revcane: http://www.kelinginc.net/KL34-180-90.pdf
08:04 PM CaptHindsight[m]: for dis I dune sees 7.8 cont Amps
08:05 PM t4nk_freenode: and 90volts
08:05 PM t4nk_freenode: heh
08:05 PM CaptHindsight[m]: TMC2209-LA https://www.trinamic.com/products/integrated-circuits/details/tmc2209-la/
08:05 PM CaptHindsight[m]: 2A RMS
08:06 PM t4nk_freenode: but like I said, you can specify step/dir pins and use them, so why not use what you got
08:06 PM CaptHindsight[m]: so not enough juice to run the above stepper at max
08:06 PM CaptHindsight[m]: https://www.geckodrive.com/g320x-digital-servo-drive.html
08:07 PM CaptHindsight[m]: the gecko dune has enough AMPs to drive the nema 34 motors to full max
08:07 PM CaptHindsight[m]: dune/done
08:07 PM CaptHindsight[m]: fergittin me how to write
08:08 PM revcane: i've been reading that gecko link for a while, they have some pretty good documentation there
08:08 PM * t4nk_freenode slaps CaptHindsight[m] and pours some water in his face
08:08 PM revcane: the tmc2209 has step/dir, looks like that could feed the gecko and be good
08:08 PM CaptHindsight[m]: revcane: you can use the SKR to drive the geckos and it turn drive the nema34 steppers
08:09 PM CaptHindsight[m]: just skip the tms2209's
08:09 PM CaptHindsight[m]: you'll just need to run some extra cables
08:09 PM revcane: just plug the gecko where the 2209's would go
08:09 PM revcane: gotcha
08:09 PM CaptHindsight[m]: yup/yes
08:09 PM revcane: it seemed redundant i just didnt know how to go about which one to remove
08:10 PM revcane: too bad i already paid an extra $ for the 2209s :(
08:10 PM t4nk_freenode: they are nice to have revcane ... I got some more on the way myself ;)
08:10 PM CaptHindsight[m]: $3 ea?
08:10 PM CaptHindsight[m]: or thereabouts I reckon
08:11 PM t4nk_freenode: a little more than that these days I guess
08:11 PM revcane: i probably got 30$ in 5 of them off amazon
08:11 PM revcane: but youre right, good to have some on hand
08:11 PM CaptHindsight[m]: but one gecko is $120 or so
08:11 PM t4nk_freenode: I got some v3.1's on the way for 4$ each
08:12 PM CaptHindsight[m]: revcane: is this for a CNC mill?
08:12 PM revcane: I got 4 geckos already
08:12 PM revcane: CaptHindsight[m]: yes
08:12 PM CaptHindsight[m]: Nema34's are rather large for most CNC glue gun printers
08:13 PM CaptHindsight[m]: sorry i was in #reprap for a bit earlier today and I'm still shaking it off
08:13 PM Tom_L: let's hope it wears off like a hangover
08:14 PM CaptHindsight[m]: like spending the day at tom's
08:15 PM Tom_L: not _that_ bad am i?
08:15 PM t4nk_freenode: _unreal_, did they ever catch the guy who did it?
08:15 PM CaptHindsight[m]: nobuddy done says you be ein bad
08:16 PM CaptHindsight[m]: t4nk_freenode: did you hear the other Florida news today?
08:16 PM t4nk_freenode: euh
08:16 PM t4nk_freenode: no?
08:16 PM Tom_L: it's still there?
08:17 PM CaptHindsight[m]: https://www.miamiherald.com/news/state/florida/article256086977.html not the Onion
08:19 PM CaptHindsight[m]: good guy with a gun
08:20 PM Tom_L: well there goes all our gun totin rights
08:20 PM CaptHindsight[m]: shootin irons
08:20 PM Tom_L: have to go back to bow n arrow or hatchet
08:20 PM CaptHindsight[m]: werds matter
08:21 PM CaptHindsight[m]: it's more legaler to open carry than conceal a knife over 3" in many areas
08:24 PM CaptHindsight[m]: oh golly geez, nema34 dc servo
08:25 PM CaptHindsight[m]: see my brain is broken
08:25 PM CaptHindsight[m]: TMC2209 is a motor driver IC for two phase stepper motors.
08:25 PM t4nk_freenode: bah, that is so sick man... what's wrong with the world
08:25 PM CaptHindsight[m]: so that would never work anyway
08:26 PM CaptHindsight[m]: G320X Digital Servo Drive for servo motors
08:26 PM CaptHindsight[m]: t4nk_freenode: git yer hands of my shootin irons
08:27 PM CaptHindsight[m]: well it's why we used to have more sane gun laws, because you can't trust poorly developed people with them while loaded
08:29 PM CaptHindsight[m]: then again one less parent with a lack of self control out loose
08:30 PM CaptHindsight[m]: maybe that is the new goal, let all the people with a lack of self control just shoot it out like the old west
08:34 PM CaptHindsight[m]: Concealed Carry Permit Exam Question #14: When raging on the highway you should never A) Blow raspberries at motorcycle riders. B) Aim your loaded weapon at another driver or rider unless you have the drop on them. C) Fire at empty bottles in the gutter. D) all the above
08:36 PM CaptHindsight[m]: revcane: sorry first misread the nema34 as a stepper vs servo
08:36 PM CaptHindsight[m]: you need a DC servo driver vs stepper driver anyway
08:44 PM roycroft: well hopefully i'll be able to start painting color in a few minutes
08:45 PM roycroft: even though it was relatively warm today, and i've had the heater on in my garage for the past 12 hours, paint is drying really slowly
08:45 PM roycroft: it must be that 147% humidity
08:45 PM CaptHindsight[m]: roycroft: have you tied painting in Arizona?
08:46 PM CaptHindsight[m]: tied/tried
08:46 PM roycroft: no, i do not go to arizona
08:46 PM roycroft: i should imagine that paint would dry before it comes out of the can there
08:47 PM CaptHindsight[m]: where powder coatings were first developed
08:47 PM CaptHindsight[m]: not true but sounds good
08:47 PM roycroft: it's a beautiful state, but there are too many people with an ugly temperment there
08:47 PM roycroft: and the climate there does not suit me
08:47 PM CaptHindsight[m]: known to hate Mexcicans
08:48 PM roycroft: i've been using kilz as the primer, because most of the base is made of mdf, and kilz seals that stuff like nothing else
08:48 PM roycroft: kilz usually dries really fast
08:49 PM roycroft: which is one reason it seals so well
08:49 PM roycroft: it's the shellac that is in the stuff
08:50 PM roycroft: anyway, guests have moved to the living room and are on the verge of their post-meal nap
08:50 PM CaptHindsight[m]: if the MDF was damp it will take longer as well
08:50 PM roycroft: i'll put something boring on the telly and then i can go paint
08:50 PM roycroft: i just bought the mdf a few days ago
08:50 PM roycroft: and it was stored indoors
08:51 PM roycroft: but as the humidity has been high the whole time since i bought it, it's certainly picked up some moisture
08:51 PM CaptHindsight[m]: is it possible for you to cobble together some sort or rudimentary curing oven?
08:51 PM roycroft: it sanded nice and smooth though - smoother than is typical when it's really wet
08:51 PM CaptHindsight[m]: or/of
08:51 PM roycroft: no
08:51 PM roycroft: it will dry
08:51 PM roycroft: it just might take longer than usual
08:51 PM CaptHindsight[m]: whicj verion of Kilz are you using?
08:52 PM roycroft: the water base version
08:52 PM roycroft: and when i checked right before dinner it was fairly dry
08:52 PM * CaptHindsight[m] is not allowed to make it through a sentance without a typo this evening
08:52 PM roycroft: just not dry enough to sand on it yet
08:52 PM roycroft: i want to put color on the bottom of the stand tonight - both coats
08:52 PM roycroft: so tomorrow i can mount the casters on the bottom, flip it over, and paint the rest of it
08:53 PM roycroft: i'm hoping that the color will be able to dry overnight before i install the casters
08:53 PM roycroft: and i'm not going to leave the heat on overnight - i can't afford that
08:54 PM roycroft: i put the second coat of kilz on about 3 hours ago - usually i can sand in an hour and a half
08:54 PM roycroft: in the summer more like a half hour
09:08 PM roycroft: well, i was fortunate - it was dry enough to sand and coat with color
09:10 PM roycroft: and i should be able to apply the final coat in a couple hours, after people have left
09:11 PM CaptHindsight[m]: if the sandpaper don't clog it's good to go?
09:13 PM roycroft: that's been my experince
09:14 PM roycroft: and this is the underside of a machine stand
09:14 PM roycroft: the only eyes that will ever see it will be attached to mice and snakes and bugs
10:04 PM tiwake[m]: so, all your friends?
10:09 PM Tom_L: friends?
10:09 PM Tom_L: what's that?
11:41 PM roycroft: well, folks are gone, my kitchen is semi-tidied, and i've applied the final coat of paint, so life is good
11:43 PM XXCoder: yay time to wheck it by party then heh
11:43 PM XXCoder: how was your thankgiving
11:43 PM XXCoder: it was pretty decent for me
11:43 PM roycroft: it was nice
11:43 PM roycroft: very low key
11:43 PM roycroft: i had two friends over
11:44 PM roycroft: and they were ok with my sneaking out to the shop for 10 minutes at a time
11:44 PM XXCoder: lol
11:44 PM XXCoder: they know you :P
11:44 PM roycroft: yes
11:44 PM roycroft: and i cooked them a lot of food
11:45 PM roycroft: and it was literally 10 minutes every few hours
11:46 PM roycroft: that's actually one of my biggest frustrations when finishing shop projects - most of the time it takes days to get it done, but only a few minutes of work at a time
11:47 PM roycroft: i really need a bigger shop with a dedicated finishing room, so i can use the rest of my shop while finish is drying
11:47 PM roycroft: instead, i have to try to plan on doing finish when i'm busy with not shop things, so that i'm not waiting on the finish to dry before i can do anything else
11:48 PM roycroft: i got to try my new battery router today for the first time
11:48 PM roycroft: it's the milwaukee m18 fuel trim router
11:49 PM roycroft: it was very comfortable to use, and the extraction was outstanding
11:49 PM roycroft: i was just doing a simple roundover, but there was virtually no dust on the surface after
11:51 PM XXCoder: nice
11:51 PM XXCoder: sounds like effecient vac system
11:52 PM roycroft: yeah, i used my festool extractor
11:52 PM roycroft: and the clip-on hood on the router worked great
11:53 PM XXCoder: nice