#linuxcnc Logs

Sep 04 2022

#linuxcnc Calendar

07:45 AM perry_j1987: morning
10:51 AM roguish[m]: morning
11:12 AM perry_j1987: how goes it
11:33 AM JT-Shop: another job finished!
11:37 AM perry_j1987: nice
11:48 AM JT-Shop: time for a nap
12:07 PM GTKplusplus6432[: I need some help setting up my 4th axis
12:07 PM GTKplusplus6432[: I thought I had solved it but clearly didn't
12:08 PM GTKplusplus6432[: basically, fusion 360 generates code like it
12:08 PM GTKplusplus6432[: a1
12:08 PM GTKplusplus6432[: a359
12:08 PM GTKplusplus6432[: for it to go 1°cw and 2°CCW
12:08 PM GTKplusplus6432[: testing in MDI (last time I tested, so a couple nights ago), it worked this way
12:08 PM GTKplusplus6432[: now, running the program, it does a 358° cw rotation
12:09 PM GTKplusplus6432[: like if I was using wrapped rotary (which I'm not)
12:09 PM GTKplusplus6432[: I'm fine with either setting up linuxcnc to work this way or fixing the fusion 360 post
12:10 PM GTKplusplus6432[: I just have no idea how. I can't see fusion knowing if it want's a cw direction or a ccw one, and even if I did I don't know why the behaviour is different between mdi more and auto mode
12:10 PM jpa-: sounds weird that fusion 360 would expect A1 -> A359 to go the short way around
12:10 PM GTKplusplus6432[: this is with post having the axis set as cyclic, with no limits
12:11 PM GTKplusplus6432[: if I set it with limits (360;-360) it still produces weird code, I guess
12:11 PM GTKplusplus6432[: which I'm going to try anyway
12:12 PM GTKplusplus6432[: ah, nevermind, that was with range being set
12:12 PM GTKplusplus6432[: it's gonna be one of those days, isn't it?
12:13 PM GTKplusplus6432[: ok, now it's generating a0.205, a-0.196
12:13 PM GTKplusplus6432[: which should work properly in absolute mode, I guess
12:13 PM GTKplusplus6432[: let me try and see what I got wrong
12:14 PM GTKplusplus6432[: also, while we are at it
12:14 PM GTKplusplus6432[: any idea about how to make gmocappy center code on g54 instead of g53?
12:14 PM GTKplusplus6432[: * gmocappy center 4th axis code on
12:14 PM GTKplusplus6432[: it messes the preview way too much
01:02 PM skunkworks: https://photos.app.goo.gl/7Yt23xFqpSvJtfcY9
01:47 PM solarwind: I'm so glad I have machine tools
01:47 PM solarwind: woodworking tools are so dangerous in comparison
01:48 PM solarwind: And for some reason there are no clamping mechanisms for table saws, chop saws, radial arm saws
01:48 PM solarwind: It's somehow _expected_ that you hold the workpiece down with your hands next to a 3,600 RPM blade
01:49 PM solarwind: The fences for these tools are also hostile to clamps. The back side is uneven, making it hard to attach clamps to them.
02:12 PM Tom_L: skunkworks, wtf?
02:23 PM CloudEvil: solarwind: all these problems can be solved in various ways with not the cheapest saw and fence.
02:23 PM CloudEvil: Or, indeed, DIY solutions.
02:27 PM roycroft: i don't get my hands hear the fast, sharp spinny parts of my woodworking machines
02:27 PM roycroft: and my fences accomodate clamps just fine, thank you very much
02:28 PM roycroft: just because some woodworkers are dangerous fools does not make the entire craft dangerous and foolish
02:28 PM roycroft: i'll concede that operating a radial arm saw safely is more challenging than most other woodworking machines
02:28 PM roycroft: and for that reason i do not have one
02:30 PM roycroft: the dangers of radial arm saws are compounded by the fact that one often ends up doing climb cutting operations on one
02:33 PM CloudEvil: Running through the cut in your head, and imagining at any point you may be stung by a bee and distracted I find useful.
02:34 PM CloudEvil: The illusion that you can reliably react to a saw or other tool 'grabbing' is way too prevalant.
02:35 PM CloudEvil: A simple sled made out of a couple bits of ply works fine for much workholding in complete safety
02:37 PM CaptHindsight[m]: why not a robot arm like the terminators?
02:39 PM CaptHindsight[m]: solarwind: ^^
02:39 PM CaptHindsight[m]: solarwind: if you weren't so afraid of robots, they could do all the unsafe work for you
02:41 PM CaptHindsight[m]: 68F here today, fall has arrived right on target
02:41 PM roycroft: or you can just get yourself a sawstop, and never have to worry about anything more than a nick to your weiner
02:41 PM XXCoder: here its more like late stage summer. 70-80f, hardly rains still
02:42 PM * roycroft notes that the sawstop does not work if you're not touching your weiner at the point it makes contact with the blade
02:43 PM roguish[m]: already 94. due for 103 today. 110 tomorrow. that's 43.3 for you Roycroft....
02:44 PM CaptHindsight[m]: oh yeah 68F = 20C
02:44 PM roycroft: death valley got up to 53 a couple days ago
02:44 PM roycroft: the highest temperature every recorded on the planet in september
02:45 PM roycroft: we have a slight chance of rain in the long-term forecast
02:45 PM roycroft: very slight, and 10 days out, but at least it's there
02:48 PM CaptHindsight[m]: Portland vs Seattle, how different are they?
02:48 PM XXCoder: one is in oregon. different state ;)
02:49 PM CaptHindsight[m]: like Milwaukee vs Indianapolis
02:50 PM roycroft: in what way do you mean different?
02:50 PM roycroft: climate, terrain, culture?
02:50 PM CaptHindsight[m]: do Oregonians not get along with Washingtonites?
02:51 PM CaptHindsight[m]: mainly culture
02:51 PM roycroft: we pretty much do
02:52 PM roycroft: there's a much bigger cultural divide between western washington/eastern washington and western oregon/eastern oregon than between oregon and washington generally
02:53 PM roycroft: it would be more logical culturally to remove the north-south border between the two states and divide them into two states along the pacific rim trail in the cascades
02:54 PM * roycroft wonders if he can find a usable, affodable led shelving led light strip locally
02:56 PM CaptHindsight[m]: roycroft: from my recent travels to hardware-ish stores they tend to stock only the higher priced items, the online deals have to be ordered
02:57 PM CaptHindsight[m]: and ship-to-store takes longer than ship to your home
03:08 PM skunkworks: Tom_L: had to tweek the ball nut to make it fit on the little emco..
03:23 PM CaptHindsight[m]: brick and mortar stores seem to only cater to old folks, so they lure them in with cheap advertised "stuff" with the expectation of the "mark" buying more things while browsing
03:37 PM skunkworks: CaptHindsight[m]: what did you end up finding on the crash?
03:39 PM CaptHindsight[m]: skunkworks: Monday, he didn't have an older system before he lft
03:39 PM CaptHindsight[m]: left
03:45 PM CaptHindsight[m]: i did test the glass bar feeder several thousand times and was only off by maybe 1/4" without an encoder
03:46 PM CaptHindsight[m]: so might be able to just use some position indicating switches vs closed loop
03:46 PM CaptHindsight[m]: but servo is just cleaner
03:55 PM CaptHindsight[m]: similar to cheap inkjet printers with the steppers and encoder ribbons
03:55 PM skunkworks: neat
03:56 PM CaptHindsight[m]: until he's back I'll also test for the encoder bug on Gentoo LCNC
03:56 PM CaptHindsight[m]: uses 2.9
03:56 PM CaptHindsight[m]: but built different
03:58 PM CaptHindsight[m]: I was thinking about other way to get LPT and encoders working quicker but they turn into a 7i43 pretty quickly
03:59 PM CaptHindsight[m]: http://store.mesanet.com/index.php?route=product/product&product_id=70
04:00 PM CaptHindsight[m]: https://forum.linuxcnc.org/27-driver-boards/44422-colorcnc-colorlight-5a-75e-5a-75b-as-fpga-controller-board is another
04:42 PM * JT-Shop2 separates some kindling from some white oak boards
04:48 PM XXCoder: fun
05:07 PM JT-Shop: took me 5 minutes to walk past the baby deer without spooking it
05:39 PM CloudEvil: :)
05:42 PM _unreal_: Interesting... I have a 56k modem on chip
05:42 PM _unreal_: two of them
05:42 PM _unreal_: I was pulling apart some SAT recivers and they had these ODD cards on them.
05:42 PM _unreal_: there is like 2 IC's a bridge and a few resistors etc... and the phone jack. thats it
05:43 PM _unreal_: si2493 is the chip
05:43 PM _unreal_: Interesting. ok so the I/O is 3.3v
05:43 PM _unreal_: would be interesting to interface them :)
05:44 PM _unreal_: I'm not likely to. prob just going to TOSS. but still interesting
05:59 PM CloudEvil: So many neat chips you wish you could ship back to yuounger you.
06:06 PM JT-Shop: wow I won the Official BYC 2022 Summer Fair Farm Machinery Show
06:06 PM JT-Shop: https://www.backyardchickens.com/threads/official-byc-2022-summer-fair%E2%80%94farm-machinery-show.1537253/page-8#post-26116956
06:07 PM XXCoder: congats
06:07 PM Tom_L: :)
06:09 PM JT-Shop: you gotta love random number judging lol
06:10 PM XXCoder: its 100% fair
06:10 PM JT-Shop: chance of rain through Wednesday night here but temps are much nicer
06:10 PM JT-Shop: if it's a good random number generator
06:11 PM XXCoder: wow new weird knife material video. meat this time. its been a while since last video
06:11 PM JT-Shop: found a pile of red oak half processed this evening that I forgot about
06:11 PM XXCoder: https://www.youtube.com/watch?v=Q1VWUL0G0uU
06:12 PM JT-Shop: I think I stashed it waiting for the powermatic planer
06:12 PM roguish[m]: just hit 100.9 here......
06:12 PM JT-Shop: early in the month can't watch videos during non free time... come on with that star link!
06:12 PM JT-Shop: 83°F here
06:12 PM JT-Shop: roguish[m], you get your pc sorted out?
06:13 PM roguish[m]: JT-Shop: sent that chicken link to my friend with the fluffy chickens.
06:13 PM JT-Shop: which link?
06:13 PM roguish[m]: yeah. got it all sorted. little help this morning from pere and seb.
06:14 PM roguish[m]: BYC
06:14 PM JT-Shop: ah
06:14 PM JT-Shop: where is your friend located at?
06:15 PM roguish[m]: Livermore, CA about 25 miles from me.
06:15 PM JT-Shop: should be a local thread here https://www.backyardchickens.com/forums/where-am-i-where-are-you.26/
06:15 PM JT-Shop: I'm on the missouri thread a lot
06:15 PM roguish[m]: about a mile from Lawrence Livermore National Lab.
06:16 PM JT-Shop: is that southern cali?
06:16 PM roguish[m]: I also sent your profile link....
06:16 PM JT-Shop: https://gnipsel.com/chickens/index.html
06:16 PM JT-Shop: and I see bay area
06:17 PM roguish[m]: https://www.google.com/maps/place/Lawrence+Livermore+National+Laboratory/@37.6821791,-121.7359437,15z/data=!4m5!3m4!1s0x808fde1cf96c9a41:0xf7e280030f00ed38!8m2!3d37.6869634!4d-121.7058752
06:18 PM JT-Shop: https://www.backyardchickens.com/threads/bay-area-bycers.292725/page-1029
06:19 PM XXCoder: hah that guys as weird as ever
06:19 PM roguish[m]: you chicken folks are tooooo much.
06:19 PM XXCoder: (the knives guy)
06:22 PM * JT-Shop wanders inside...
07:42 PM cnc4life7171[m]: Test, showing locked...
08:06 PM XXCoder: pretty cool. wood frame https://youtu.be/H1WQmDNjhWw
08:07 PM XXCoder: cnc4life7171[m]: what is showing as locked?
08:46 PM xxcoder[m]: ah you meant the lock on channel icons? yeah its open to everyone who agreed to CoC and got member role. without it you would be only able to see Welcome and lost members channels
09:22 PM _unreal_: just came down from the roof. just watched the space x launch