#garfield Logs

Sep 01 2023

07:17 AM Tom_itx is now known as Tom_L
08:03 AM rue_mohr: I think in japan you can ecenomically get 1-off parts made
08:03 AM rue_mohr: https://pbs.twimg.com/media/F46bMjUbEAA3gQP?format=jpg&name=small
08:04 AM rue_mohr: I'm seeing this quite often
08:04 AM rue_mohr: like getting a PCB done
08:06 AM Tom_L: what's this needle going to indicate?
08:07 AM rue_mohr: yes..
08:07 AM rue_mohr: oh what
08:07 AM rue_mohr: what/was
08:07 AM rue_mohr: I'm going to put a 0-F hex digit range on it
08:08 AM rue_mohr: its going to be a 4 bit display
08:09 AM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/scaleArt-demo.png
08:10 AM Tom_L: for what?
08:10 AM rue_mohr: its a distraction, they have no purpose
08:11 AM rue_mohr: its like watching a movie, but takes 2 weeks
08:11 AM rue_mohr: usually
08:12 AM rue_mohr: for the drive, I'm going to use threads like an old radio tuner
08:12 AM rue_mohr: I feel wrong saying old in that...
08:13 AM rue_mohr: I have the pullies outlined, I need to design them as parts
08:13 AM rue_mohr: pulleys
08:13 AM rue_mohr: hmm
08:15 AM Tom_L: i think i fixed my needle code
08:16 AM rue_mohr: :]
08:16 AM rue_mohr: gonna do a test run?
08:16 AM Tom_L: probably won't run it again
08:16 AM rue_mohr: heh
08:16 AM Tom_L: it would come out better though
08:16 AM rue_mohr: I'll dig and see if I have a 1/16 cutter
08:16 AM rue_mohr: I dont think I do
08:16 AM rue_mohr: I think I have 1, 1.5, 2, and 3
08:17 AM Tom_L: i don't have a metric tool table set up in my cad
08:18 AM rue_mohr: I think the actual shaft for the pointer will be something like a needle, but I'll leave the hole that size and use an adapter hub
08:18 AM Tom_L: remove the hole and drill one the right size
08:18 AM Tom_L: slide it on with a dot of hotglue
08:18 AM rue_mohr: bit changes are not my friend
08:19 AM Tom_L: run 2 programs
08:19 AM rue_mohr: ...
08:19 AM Tom_L: i did that for a while until i got sick of it
08:19 AM rue_mohr: I'm not even sure what size a needle is
08:19 AM Tom_L: you got calipers sir
08:20 AM rue_mohr: :) but, do I have a needle?
08:20 AM rue_mohr: :)
08:20 AM * Tom_L pokes rue_mohr with one to let him know what it is
08:20 AM rue_mohr: I had to redo the bobbin under the sewing machine and now its got no tension
08:21 AM rue_mohr: not sure whats not right
08:21 AM Tom_L: i was kinda surprised i pulled that off cutting the needle
08:21 AM rue_mohr: :]
08:21 AM Tom_L: without much thought into it..
08:21 AM rue_mohr: the plastic seems to have taken well to it
08:21 AM Tom_L: you saw the first one?
08:21 AM rue_mohr: I think of cd's as really brittle on account of how they shatter
08:22 AM rue_mohr: yep
08:22 AM rue_mohr: too much speed?
08:22 AM Tom_L: no coolant and i halved the rpm to 2000 on the 2nd one
08:22 AM Tom_L: it was 4k
08:22 AM rue_mohr: yep
08:22 AM Tom_L: i used my aluminum tool set
08:22 AM rue_mohr: I find the plastics cut better at crazy low speeds
08:23 AM Tom_L: i could have doubled the feed and got the same result
08:23 AM rue_mohr: yep
08:24 AM rue_mohr: so the new job has its stress moments
08:24 AM rue_mohr: the breaker for the delayed vital power opened and wouldn't reclose
08:25 AM rue_mohr: bit of panic while I reverse engineered it and "forced" it to reclose
08:25 AM Tom_L: heh
08:25 AM rue_mohr: aparently took me like 40 mins
08:25 AM Tom_L: what made it open?
08:25 AM rue_mohr: we dont know
08:25 AM rue_mohr: its known to be faulty
08:26 AM Tom_L: put in a new noe
08:26 AM Tom_L: one
08:26 AM Tom_L: that one is kinda important
08:26 AM rue_mohr: yea, well, $70k I think, has created a stall
08:26 AM rue_mohr: ya
08:26 AM Tom_L: it's a hospital... cough it up
08:27 AM rue_mohr: hopefully they will realize how important the warning messages from maintenance were
08:27 AM rue_mohr: yea
08:27 AM rue_mohr: I think they understand now, we will see what happens
08:27 AM Tom_L: they crashed cnc spindles at my kid's last work that cost that much
08:27 AM Tom_L: several..
08:27 AM rue_mohr: heh, yea.. material wasn't cheap neither was it?
08:27 AM Tom_L: just shruged it off and kept going
08:28 AM rue_mohr: oof
08:28 AM Tom_L: no
08:28 AM Tom_L: they make some expensive parts
08:28 AM rue_mohr: did I show you my huge pile of aluminum biscuits?
08:28 AM Tom_L: dunno
08:28 AM Tom_L: he likes his new job alot better
08:29 AM rue_mohr: cool!
08:29 AM Tom_L: except for one old dude he hates
08:29 AM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1290243.jpg
08:29 AM rue_mohr: I only make 2-4 per pour
08:29 AM rue_mohr: averaged
08:29 AM Tom_L: dam dude!
08:29 AM rue_mohr: so, where are all the castings that went with them?
08:29 AM Tom_L: is it necessary to convert it to biscuts before making parts?
08:29 AM Tom_L: seems like a waste of propane
08:30 AM rue_mohr: no, and yea, it would be a waste, so i dont
08:30 AM rue_mohr: they are the safety overstock from each pour
08:30 AM Tom_L: oh
08:30 AM rue_mohr: like, you make sure you have more than enough
08:30 AM rue_mohr: for the pour..
08:30 AM Tom_L: better than coming up short.. like on a concrete pour :)
08:30 AM rue_mohr: exactly
08:31 AM rue_mohr: as such, I almost never go back for them
08:31 AM rue_mohr: I'll need to one day, I think...
08:33 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/pointer/Pointer.txt
08:34 AM Tom_L: the new file
08:34 AM rue_mohr: ok
08:34 AM Tom_L: note i added some op stops
08:34 AM Tom_L: that's automatic in my post
08:34 AM rue_mohr: yea I need to make my spooler a bit smarter
08:35 AM rue_mohr: hmm 1/16" is close to 1.5mm
08:35 AM rue_mohr: -1.04
08:36 AM rue_mohr: is that mm or inches?
08:36 AM rue_mohr: z
08:36 AM Tom_L: inch
08:36 AM Tom_L: i set the tool 1" above the top of the cd
08:37 AM rue_mohr: so zero is 1" over?
08:37 AM rue_mohr: ok
08:37 AM Tom_L: i set the tool always like that
08:37 AM Tom_L: safe zone
08:37 AM rue_mohr: hmm
08:37 AM Tom_L: always!
08:37 AM rue_mohr: the cam I use does a 3mm clear for jogging
08:37 AM rue_mohr: which is a bit too tight for mounting scerw heads
08:37 AM Tom_L: the cd is .0485 thick
08:38 AM rue_mohr: oh, no overcut?
08:38 AM Tom_L: N8 G01 Z-1.0485 F3.0
08:38 AM Tom_L: one pass and done
08:38 AM rue_mohr: yep, I did 2mm to overcut
08:38 AM rue_mohr: 0.07874
08:38 AM rue_mohr: "
08:39 AM rue_mohr: but the wood cutblock is warping, which is part of the reason for huge margins
08:39 AM Tom_L: <rue_mohr> yea I need to make my spooler... better yet switch to linuxcnc :)
08:39 AM rue_mohr: I have to relevel it
08:39 AM rue_mohr: hah
08:40 AM Tom_L: you wouldn't regret it
08:40 AM rue_mohr: its not the software I have an issue with, its what it takes to get descent performing hardware working with it
08:40 AM rue_mohr: right now its literally just a $5 arduino
08:41 AM rue_mohr: I have a small stack of them on the shelf
08:42 AM Tom_L: https://mesaus.com/product/7i96s/
08:42 AM Tom_L: ethernet solution
08:42 AM rue_mohr: not $5
08:42 AM rue_mohr: :/
08:42 AM Tom_L: i got one of those to test with
08:42 AM rue_mohr: :)
08:42 AM Tom_L: no but you get much better performance
08:42 AM rue_mohr: I feel really comfortable having spares
08:43 AM Tom_L: and sserial interface rs485 i think for as many io as you need
08:43 AM rue_mohr: yes,
08:43 AM Tom_L: or the 26pin expansion header
08:43 AM rue_mohr: if I had $1M I'd also get gecko DC servo drives
08:43 AM Tom_L: and jt has written a config tool to make it very easy
08:44 AM Tom_L: the new mill deserves it !
08:44 AM Tom_L: it's probably a better mill than mine
08:45 AM rue_mohr: I'll finish the basics first...
08:45 AM rue_mohr: light, cooling, rewire
08:45 AM rue_mohr: I'm away to work
08:45 AM rue_mohr: ugh I'm "late"
08:45 AM Tom_L: me too soon
08:45 AM Tom_L: later