#linuxcnc Logs
May 29 2025
#linuxcnc Calendar
01:47 AM jpa-: littleshopofrandom@: hardware serial port + RS232-RS485 converter would offer less latency and better reliability, but because spindle doesn't usually need realtime control that USB converter should work
02:48 AM Contract_Pilot is now known as Rhine_Labs
03:20 AM -!- #linuxcnc mode set to +v by ChanServ
03:40 AM -!- #linuxcnc mode set to +v by ChanServ
04:02 AM -!- #linuxcnc mode set to +v by ChanServ
04:31 AM Tom_L: morning
04:55 AM Deejay: hi
05:06 AM -!- #linuxcnc mode set to +v by ChanServ
06:48 AM rdtsc-w: right on jpa - USB is notoriously laggy. although, using a USB MPG and that seems to work fine... but if I miss a pulse there, it's no big deal
07:04 AM JT-Cave: https://www.youtube.com/watch?v=jmZXuxF_Ly0
08:00 AM lcnc-relay: <skunkworks8841@> that is awesome!
08:00 AM lcnc-relay: <skunkworks8841@> You guys rock
10:21 AM lcnc-relay: <littleshopofrandom@> back to the past!
10:21 AM lcnc-relay: <littleshopofrandom@> 😛
10:21 AM lcnc-relay: <littleshopofrandom@> im gonna try this out after this weekend i think
10:34 AM roycroft: happy thursday
10:34 AM roycroft: i just dropped my car off at the shop, and won't have it for a couple days, and i brought some little metal bits home with me from the old shop yesterday
10:35 AM roycroft: so since i have nowhere to go for a while i'm planning on making some limit switch brackets after work today
10:52 AM lcnc-relay: <skunkworks8841@> well - I just sold a 20hp 3 phase electric motor to work...
10:54 AM roycroft: that motor would have been great for my 2x72 belt grinder
10:54 AM roycroft: i would be able to grind the hull off an ocean liner if i had that motor
11:24 AM lcnc-relay: <skunkworks8841@> lol
11:24 AM lcnc-relay: <skunkworks8841@> the starter overhaul kit says it should be here friday. That would be nice
11:30 AM lcnc-relay: <skunkworks8841@> We have a oliver jointer/planer around 18 inch? and that has the motor wired for 480 - running on 220
11:34 AM lcnc-relay: <skunkworks8841@> maybe it was 480 only? I don't remember
11:37 AM rdtsc-w: 480 is kinda "industrial" for woodworking equip, isn't it? well except for logging and milling big stuff I suppose
11:43 AM roycroft: for an 18" jointer 480v would not be out of line
11:43 AM roycroft: that has probably at least a 10hp motor
11:44 AM roycroft: and oliver is industrial gear
12:00 PM lcnc-relay: <skunkworks8841@> it came out of a highschool wood shop
12:01 PM lcnc-relay: <skunkworks8841@> it is nice. Did a lot of planing with it.
12:01 PM roycroft: if i had room for one i would not complain about having it
12:02 PM roycroft: i have an 8" jointer and 15" thicknesser
12:02 PM roycroft: if my shop were large i'd ideally like a 12" jointer and 20" thicknesser
12:02 PM roycroft: but i'm fine with what i have
12:02 PM roycroft: upgrading from my 6" jointer to the 8" a few years ago was a huge improvemen
12:02 PM roycroft: t
12:03 PM roycroft: my first jointer was actually 8" - back when i lived in bellingham
12:03 PM lcnc-relay: <skunkworks8841@> we have an old bellsaw thickness planer.
12:03 PM lcnc-relay: <skunkworks8841@> 12 inch I think..
12:03 PM roycroft: i sold it when i moved to eugene, and got a 6", since my shop was smaller
12:03 PM roycroft: i thought that would be ok, but i was constantly running into capacity issues, so i finally sold the 6" and got another 8"
12:04 PM roycroft: i got one with an extra long bed, and that helps a lot when jointing long boards
12:05 PM roycroft: https://www.grizzly.com/products/grizzly-8-x-76-jointer-with-parallelogram-beds-and-spiral-cutterhead/g0490x
12:05 PM roycroft: that is what i currently have
12:07 PM roycroft: https://www.grizzly.com/products/grizzly-15-planer-with-spiral-cutterhead/g0453zx
12:07 PM roycroft: and that is my thicknesser
12:26 PM lcnc-relay: <littleshopofrandom@> cnc planer
12:26 PM lcnc-relay: <littleshopofrandom@> with robot loading
12:32 PM bjorkintosh: co-bot.
12:56 PM pcw--home: ss
01:03 PM roycroft: ther's no need for cnc for thicknessing wood, for the most part
03:01 PM roycroft: i got the right gantry side removed from my mini-router at lunch time today
03:01 PM roycroft: that's where the y axis limit switches will go
03:01 PM roycroft: and will be the easy ones to install
03:03 PM roycroft: i'm thinking i might need to shield those switches, though - they'll be close to the spindle at times and might get gunk on them
03:10 PM xxcoder: always good idea
03:10 PM roycroft: i'll have to figure out a good way to do that, but yeah
03:12 PM Tom_L: hide them. http://tom-itx.no-ip.biz:443/~webpage/cnc/Mill_Steel/Assembly/X_Axis_limit2.jpg
03:13 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/cnc/Mill_Steel/Assembly/Y_Axis_limitswitches1.jpg
03:19 PM roycroft: i haven't found an obviously easy way to mount them away from the swarf zone
03:20 PM roycroft: but i'm going to have another good look at things before i start making parts
03:20 PM xxcoder: 3d print a enclosure for switch?
03:20 PM roycroft: having the machine partially disassembled can give me a different perspective
03:20 PM roycroft: if that's what work
03:20 PM roycroft: or sheet metal
03:21 PM roycroft: or whatever
03:21 PM roycroft: my current thinking is that i'll mount both y limit switches on the gantry upright, with rods on the edge of the bed for them to contact
03:22 PM xxcoder: adjustable rods?
03:22 PM roycroft: yes
03:23 PM xxcoder: yeah it sounded most reasonable to have it adjustable
03:23 PM roycroft: there's a t-channel on the edge of the bed, so it would be easy to mount the rods with bolts and t-nuts
03:23 PM xxcoder: indeed
03:25 PM roycroft: the limit switches i have are pretty much identical to yours, tom_l, including the color
03:26 PM roycroft: a thought that i had when i did the partial disassembly of the machine was that i may be able to mount them underneath, in a protected area, and have the ball screw nut trigger them
03:26 PM roycroft: that's what i'm going to look at further after work
03:34 PM Tom_L: about ten cents a dozen
03:36 PM Tom_L: that's basically what i did
03:37 PM Tom_L: but i mounted a trigger tab for each one
03:41 PM Tom_L: i used the plate itself for Z and rounded the corner a bit so it would roll easier http://tom-itx.no-ip.biz:443/~webpage/cnc/Mill_Steel/Assembly/Z_Axis_Limit1.jpg
03:42 PM Tom_L: i don't think i wired Z- but it may be mounted
04:05 PM rdtsc-w: some good-lookin' welds in there
04:08 PM Tom_L: not near enough practice
04:08 PM xxcoder: grinder makes you a good welder you arent.
04:08 PM Tom_L: bondo
04:09 PM lcnc-relay: <skunkworks8841@> Tom_L: does it ring?
04:09 PM Tom_L: no
04:09 PM xxcoder: nice passthough setup though. I dont like those designs that go into switch. if something goes wrong the switch is goner
04:09 PM lcnc-relay: <skunkworks8841@> nice. Did you throw it in a bon fire?
04:09 PM lcnc-relay: <skunkworks8841@> 🙂
04:09 PM Tom_L: that war brought up when i was building it
04:10 PM Tom_L: maybe should have but no
04:10 PM Tom_L: s/war/was
04:10 PM lcnc-relay: <skunkworks8841@> I thought you started a war..
04:11 PM xxcoder: the bonfire war
04:11 PM Tom_L: it actually turned out pretty straight considering the build environment
04:11 PM Tom_L: it serves it's purpose which is mostly testing things
04:12 PM lcnc-relay: <skunkworks8841@> https://photos.app.goo.gl/duywFGrMo6zT1vtT7
04:13 PM Tom_L: prison :)
04:13 PM lcnc-relay: <skunkworks8841@> I bet it works great
04:13 PM Tom_L: it does
04:13 PM Tom_L: the low end goal was to be better than the sherline i started with and it has far exceeded that
04:14 PM lcnc-relay: <skunkworks8841@> I bet
04:14 PM Tom_L: especially with the updated spindle motor
04:14 PM Tom_L: i'm surprised i didn't burn out the sherline
04:14 PM Tom_L: it got pretty warm a few times
04:15 PM lcnc-relay: <skunkworks8841@> I am still using a stbl amp on the green machine spindle. (800w)
04:15 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/cnc/Mill_Steel/Assembly/spindle_cooler/Cooler5.jpg
04:15 PM Tom_L: then i came up with that bright idea
04:15 PM Tom_L: actually worked pretty well
04:15 PM lcnc-relay: <skunkworks8841@> lol - I bet
04:15 PM Tom_L: fill the bucket with ice water
04:16 PM Tom_L: the new one barely gets warm
04:17 PM rdtsc-w: improvised water-cooling, like it
04:17 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/cnc/Mill_Steel/Spindle/Motor_mounted1.jpg
04:17 PM Tom_L: made a huge difference
04:18 PM Tom_L: just happened to have a pipe the right size
04:18 PM Tom_L: filled the tube with water so it wouldn't collapse
04:18 PM roycroft: you must be homebrewer
04:19 PM roycroft: because that spindle cooler is a mini wort chiller
04:19 PM Tom_L: i do with what i have
04:19 PM Tom_L: but no
04:21 PM roycroft: https://www.amazon.com/dp/B003UCCLG6
04:21 PM Tom_L: heh
04:22 PM roycroft: the difference is that when brewing you put the chiller in a bucket of ice and pump the wort through the coil
04:22 PM Tom_L: didn't know that
04:22 PM roycroft: s/ice ice water/
04:22 PM Tom_L: i've watched a few of those moonshine shows
04:27 PM roycroft: i used a plate chiller when brewing
04:27 PM roycroft: much more effective than an immersion chiller
04:28 PM roycroft: https://roycroft.us/BrewSystem/IMG_1023.JPG
04:45 PM bjorkintosh: was the CO2 bottle costly?
04:47 PM roycroft: are you talking about the brew system picture?
04:50 PM lcnc-relay: <skunkworks8841@> Before I https://youtu.be/PIBVM0Pyxyk?si=mssFCd0W9TdPZMfm
05:00 PM lcnc-relay: <skunkworks8841@> Tom_l: was that around 800w
05:01 PM Tom_L: in the yt?
05:01 PM lcnc-relay: <skunkworks8841@> Your new spindle
05:01 PM Tom_L: yeah 6-800 iirc
05:01 PM Tom_L: oh
05:01 PM Tom_L: the new one is 1.2kw
05:02 PM Tom_L: but unlike most of them, 0-5500rpm instead of 30k :)
05:02 PM Tom_L: allows for things like rigid tapping etc
05:11 PM lcnc-relay: <littleshopofrandom@> anyone want a little 40k spindle? erll
05:11 PM lcnc-relay: <littleshopofrandom@> 50w
05:11 PM lcnc-relay: <littleshopofrandom@> 750
05:35 PM roycroft: well not fun
05:35 PM roycroft: i was ready to start on the limit switch mounts, and found that my bandsaw's power switch broke during the move
05:35 PM roycroft: i have not used it in a year
05:35 PM roycroft: more than a year
05:36 PM Tom_L: hack saw
05:36 PM * roycroft hopes he can find a 10a toggle switch locally, otherwise the project gets delayed again until the weekend
05:36 PM Tom_L: slower but effective
05:36 PM roycroft: too much slower
05:36 PM roycroft: and it would have a negative impact on my back
05:36 PM roycroft: i'm being real careful with personal energy management
05:37 PM roycroft: i'm starting to assume that just about everything i moved here may have problems, and setting expectations accordingly
05:38 PM roycroft: what sucks is that i was having a hard time deciding where to mount the switches, and when i finally made my decision i wanted to get started immediately
05:38 PM roycroft: oh well
05:38 PM * roycroft heads to the hardware store
05:54 PM Tom_L: skunkworks, he did a nice job on that build
05:57 PM slobodan: I want to make CNC from DVD's and add little servo for pen/up down movement but I cant find any slicer for it for current Inkscape, does someone know for any for current Inkscape ?
06:10 PM JT-MShop: https://gnipsel.com/images/wildfire-lift/
06:11 PM roycroft: i ended up bypassing the switch for now, and power on and off by plugging it in and unplugging it
06:13 PM roycroft: but the shaper session on the new "benchpilot" product is starting, and i want to watch it
06:13 PM roycroft: more importantly, i want to enter the drawing and win one - i could sell it for $1k in an instant, and could use the money :)
06:22 PM roycroft: if i had that lift i might be willing to do some wrenching on cars
06:42 PM rdtsc: oh, you mean that's for lifting cars? and here I was thinking it was adjustable bench-seating for 30 or so students... dang it, who's going to teach them then? with no guidance, they'll have androids doing everything by 2030
06:59 PM lcnc-relay: <skunkworks8841@> it can be an adjustable workbench too
07:08 PM Tom_L: a bit overkill for an oil change
07:11 PM bjorkintosh: roycroft: yes.
07:11 PM bjorkintosh: the brew picture.
07:29 PM roycroft: that was awesome
07:30 PM roycroft: the shaper origin crashed twice during the demo
07:30 PM roycroft: not crash as in machining when something hits something and stuff breaks
07:30 PM roycroft: but crash as in the origin freaked out and had to be rebooted
07:31 PM roycroft: bjorkintosh: that's not a co2 tank - it's an o2 tank
07:31 PM roycroft: and i haven't refilled it in years, but i think it costs about $15 to refill
07:32 PM roycroft: i use it for about 3 minutes at the very end of a brew session, so i do not consume much oxygen
07:33 PM * roycroft gets back to the fabrication project
08:10 PM Tom_L: roycroft, that had to be embarrassing for them
08:12 PM roycroft: it was
08:12 PM roycroft: it's beta code, but still embarrassing
08:13 PM roycroft: and i'm fine with that, jake, and especialy russ, can be rather smug
08:13 PM roycroft: knocking them down a bit is good for them, imo
08:13 PM * roycroft is kind of feeling like he's early on his shop work
08:14 PM roycroft: i just went to drill and tap for the limit switches in their new mounting plate, and i had no m3-0.50 taps in the place where they live
08:15 PM roycroft: i know i have at least a couple, but when i moved they apparently weren't in their home, and now they could be anywhere
08:15 PM roycroft: i recent years i've gotten used to having most of the tools, and many of the fasteners, that i need for just about anything, and could with confidence head out to the shop and just get work done
08:16 PM roycroft: now i seem to be reverting to my youth, where there would usually be several procurement excursions for any project
08:19 PM roycroft: to anyone planning on moving shop: make sure your old shop is spotlessly clean and completely organized, with everything in its place, before beginning the move
08:22 PM Tom_L: i think i used 4-40 on mine
08:22 PM Tom_L: for the switch and don't recall what the mount screws were
08:23 PM Tom_L: simply because i had them
08:31 PM roycroft: that would work, and i'm sure i have a 4-40 tap that i can find
08:31 PM roycroft: but the rest of the machine already uses metric fasteners
08:32 PM roycroft: i don't like mixing units like that if i can help it
08:32 PM roycroft: it just makes maintenance harder
08:32 PM Tom_L: i used a mix on mine
08:32 PM Tom_L: metric on the rails
08:32 PM Tom_L: since they were metric rails
08:32 PM roycroft: i'll wait until saturday, when i'm in town, and pick up an m3 tap
08:33 PM * roycroft is fine with that, as he can find other things to do in the mean time
08:33 PM roycroft: i want to tweak the fan cutouts still, so i can spend a bit of quality cad time this evening doing that
11:47 PM roycroft: john tyler's last grandson has left the building
11:47 PM roycroft: i had no idea he was still alive
11:50 PM roycroft: john tyler was president from 1841 to 1845, in case anyone is unfamiliar with him