#garfield Logs

Jul 23 2023

12:28 AM rue_mohr: Tom_L,
12:39 AM rue_mohr: http://tom-itx.no-ip.biz:81/~webpage/
12:39 AM rue_mohr: you didn't hand code that site did ya?
03:20 AM rue_shop1: yay, the serial over ethernet works
03:21 AM rue_shop1: my spooler program thinks its dealing with a serial port
03:21 AM rue_shop1: socat pty,link=/dev/ttySEther2,raw,echo=0 tcp:192.168.9.14:44
03:23 AM rue_shop1: hahaha
03:23 AM rue_shop1: I unplugged the ethernet for like 2 seconds and it didn't even notice
03:23 AM rue_shop1: everything just spooled, waited and retried
06:06 AM Tom_itx: rue_mohr, i think i did
06:08 AM Tom_itx: hard to remember now
06:21 AM Tom_itx is now known as Tom_L
11:11 AM polprog: socat rules
12:51 PM rue_mohr: Tom_L, hand coded layouts like that are complex to hand code
12:51 PM rue_mohr: ok, I'm not awake yet
12:53 PM rue_mohr: polprog, omg, tell me thats not a whole raspberry pi just being used to convert a usb keyboard to ... serial?
01:24 PM Tom_L: maybe i used front page to start it
01:24 PM Tom_L: been too long to remember
01:37 PM rue_mohr: :)
01:40 PM Tom_L: probably got a template off the web somewhere
01:44 PM Tom_L: you revising one?
01:44 PM rue_mohr: I'm still poking at the idea of making a blog like thing
01:45 PM Tom_L: having a home server is kinda nice
01:46 PM Tom_L: i mostly just post pics anymore though
01:46 PM Tom_L: then forget where i put them
01:48 PM rue_mohr: tempimage has been working well
01:48 PM rue_mohr: I have a script that takes all the images from a dir, scales and posts them, gives me the links
01:48 PM rue_mohr: and it deletes the old images, so its not a bottomless pit
01:48 PM rue_mohr: I think It keeps the 12 newest images
01:49 PM Tom_L: so what's up with twitter?
01:49 PM rue_mohr: 'rm `ls -1rt public_html/~ircjunk/tempimage/*.{JPG,jpg,png} | head -n-20`'
01:49 PM rue_mohr: 20 iamges
01:50 PM rue_mohr: twitter is a mess, they defeated the reason I'm there (to be found)
01:50 PM rue_mohr: you cant just anonymously browse twitter profiles, you have to be signed up
01:50 PM Tom_L: i didn't know you could *.{,,,} in linux
01:51 PM Tom_L: does that work before the dot too?
01:51 PM rue_mohr: yes, the dot is not special
01:51 PM Tom_L: sure it is
01:51 PM rue_mohr: not on linux
01:51 PM Tom_L: don't make it feel bad
01:51 PM rue_mohr: on dos its king
01:52 PM rue_mohr: except when its prince foo.exe.txt.xls
01:55 PM Tom_L: cnc ready to make parts?
01:59 PM rue_mohr: mostly
02:00 PM rue_mohr: today I want to get it to engrave a front panel for itself.
02:00 PM rue_mohr: I should have painted some plexi yesterday for it tho
02:04 PM Tom_L: my cad does lettering ya know
02:04 PM Tom_L: bbl
02:04 PM Tom_L: limited fonts though
02:10 PM rue_mohr: yep, I'v come to doing raster in something like gimp and vectorizing it in inkkscape
02:10 PM rue_mohr: then any font is an option
02:10 PM rue_mohr: and I just pocket it all
02:11 PM rue_mohr: with a V bit that has a ~0.5mm flat tip
04:55 PM Tom_L: yeah i used one of those on my pendant face
04:55 PM Tom_L: that was back on the sherline and it wasn't completely flat
05:07 PM rue_mohr: ok I did trike stuff
05:08 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1290039.jpg
05:08 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1290042.jpg
05:08 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1290043.jpg
05:08 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1290044.jpg
05:08 PM rue_mohr: moved the basket forward as it was a bit too close to the pedals,
05:08 PM rue_mohr: tipped the seat back
05:09 PM rue_mohr: put on a brake handle that has a 'lock on' feature for a 'parking' brake
05:09 PM rue_mohr: and fixed the bearing that broke loose
05:13 PM Tom_L: big basket
05:13 PM rue_mohr: groceries!
05:13 PM Tom_L: ahh the store not that far to ride?
05:14 PM rue_mohr: its only 4km
05:14 PM rue_mohr: :/
05:14 PM Tom_L: make sure your welds will get you there and back
05:14 PM rue_mohr: I'm gonna say done with the trike for the day
05:15 PM rue_mohr: heh yea, the 8km trip went perfect
05:15 PM rue_mohr: the weld on the bearing broke just *after* I got back
05:15 PM rue_mohr: gonna go do some weed killin
05:15 PM rue_mohr: maybe after lunch
05:18 PM Tom_L: good life cycle engineering there... :) designed to break at the right time
05:26 PM rue_shop3: hehe
05:26 PM rue_shop3: I'm learning that the things I make tend to be heavy...
05:26 PM rue_shop3: I might take a drill to this later
05:27 PM rue_shop3: shave off 10-20lbs
05:27 PM rue_shop3: not sure how, it doesn't seem heavier built than a bike
05:38 PM Tom_L: thin wall 4130
05:38 PM Tom_L: $$
05:38 PM Tom_L: every hole you add also makes it weaker
06:02 PM rue_mohr: I think its way too strong now
06:59 PM rue_mohr: damnit, I think inkscaped dxf export is messed up
07:12 PM rue_mohr: zero at lower left
07:18 PM Tom_L: hmm
07:18 PM Tom_L: should be upper right no?
07:41 PM rue_shop1: its custom for each job
07:43 PM Tom_L: you use world coordinates
07:44 PM rue_shop1: I put x whereever works easiest to locate for the part I'm making
07:44 PM rue_shop1: :]
07:44 PM Tom_L: so do i but i try to keep some uniformity
07:45 PM rue_shop1: so, I could not pocket the letters
07:45 PM rue_shop1: the cam program said the profiles were not closed
07:45 PM rue_shop1: grr
07:46 PM rue_shop1: so I'm just engraving the outlines
07:46 PM rue_shop1: :/ it needs air and a spindle light
07:47 PM rue_shop1: my spooler allows me to edit on-the-fly
07:47 PM rue_shop1: so I'm playing with feed rates
07:50 PM rue_shop1: looks like 60mm/min was cutting nice
07:53 PM Tom_L: :)
07:54 PM rue_shop1: hard to cut slow enough in plexi
07:54 PM Tom_L: soap
07:54 PM rue_shop1: ah
07:54 PM rue_shop1: I'v used water a few times
07:54 PM Tom_L: too slow will also burn it
07:54 PM rue_shop1: keep it cool, cuts hot
07:54 PM Tom_L: black is horrid
07:55 PM rue_shop1: heh, I'v never
07:55 PM rue_shop1: I need an RPM indicator on here
07:55 PM rue_shop1: I'll have to take the head apart and add mouting stuff
07:56 PM rue_shop1: and see if the water that was in there did any obvious damage
07:57 PM Tom_L: yeah you can't control proper feedrated without knowing the rpm
07:57 PM Tom_L: feedrates
07:57 PM rue_shop1: and I dont even know the ballpark
07:57 PM rue_shop1: I suppose I could measure and mark the dial
07:57 PM rue_shop1: the sherline was like that
07:58 PM Tom_L: crap. the feed page is gone now
07:59 PM Tom_L: https://zero-divide.net/fswizard
07:59 PM Tom_L: that shows 'plastics'
07:59 PM Tom_L: you didn't put that on your phone either did ya???
07:59 PM rue_shop1: the one you showed me earlier?
07:59 PM rue_shop1: not yet, there is a whole lot of things to do yet
08:00 PM Tom_L: no there was another that listed different materials and now it's gone
08:00 PM Tom_L: http://www.custompartnet.com/calculator/milling-speed-and-feed
08:00 PM Tom_L: another one
08:02 PM Tom_L: https://www.onsrud.com/Articles/articles.asp
08:02 PM Tom_L: some good info
08:03 PM rue_shop1: not sure how to do a V bit
08:03 PM Tom_L: yeah that's a tough one
08:03 PM Tom_L: probably the tip diameter for the s/f
08:04 PM Tom_L: you push the rest and it may be ok but the tip will break
08:05 PM rue_shop1: oops, test cut says my material isn't big enough
08:05 PM Tom_L: if ppl follow the chip loads even with small cutters they should do ok
08:05 PM Tom_L: shrink the letters
08:07 PM rue_shop1: yea
08:07 PM rue_shop1: the cut can be shallower too
08:08 PM rue_shop1: I did 0.5mm
08:09 PM Tom_L: iirc my 'test cuts' on the pendant were
08:09 PM Tom_L: .025 and .035 iirc
08:09 PM Tom_L: inch
08:09 PM Tom_L: you see some are deeper
08:10 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/pendant/pendant2.jpg
08:10 PM Tom_L: i wasn't sure which would look better so i ran 2 tests
08:10 PM Tom_L: if it were flatter i think either would be fine or halfway between them
08:11 PM Tom_L: the 'start' button is kinda shallow because of it
08:14 PM Tom_L: i should try some again now that the new mill is working
08:15 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1290046.jpg
08:15 PM rue_mohr: rear engraving
08:16 PM rue_mohr: the final piece is painted black on the engraved side (back)
08:19 PM Tom_L: did the plastic try to burn/
08:19 PM Tom_L: ?
08:19 PM Tom_L: looks pretty good from here
08:24 PM rue_mohr: nope, most of the cut is good
08:24 PM rue_mohr: there are a few places the cuts aren't clean cause I was playing with the RPM and feed rate
08:25 PM rue_mohr: I'll have a 3d printed mask and then use LEDs to backlight the bits
08:27 PM rue_mohr: this week I'll tear the head apart and put some mounting holes in it
08:29 PM Tom_L: for coolant?
08:29 PM rue_mohr: head light (I'm addicted), coolant, and an RPM sensor
08:29 PM Tom_L: careful with the bearings, they could be preloaded
08:30 PM rue_mohr: the top plate comes off to service the belt, there are no images of whats in there
08:30 PM Tom_L: i got 4'led strip straight above the mill now
08:30 PM rue_mohr: there was water, there is a lot of oil
08:30 PM Tom_L: i need all the light i can get anymore
08:30 PM rue_mohr: :)
08:30 PM Tom_L: those ikea things do ok
08:31 PM Tom_L: https://www.ikea.com/us/en/p/naevlinge-led-clamp-spotlight-white-20449895/
08:31 PM Tom_L: they were like $4-5 when i got them
08:32 PM Tom_L: i use one on the lathe
08:58 PM rue_shop3: so for that front panel, the next step is a bit more trickey, I want it to cut the pocket in its own front panel for the display
08:58 PM rue_shop3: ah yes, I have some pcb panel like leds I can just attach right under the head (so I think for now)
08:59 PM rue_shop3: I think this is quieter than the sherline
09:02 PM Tom_L: cool
09:02 PM Tom_L: heavier for sure
09:04 PM Tom_L: can you manual cut with the pendant too?
09:04 PM Tom_L: i use mine as a conventional mill quite a bit
09:08 PM rue_shop1: ~yes
09:08 PM rue_shop1: I do not have the pendant set up for calibrated motion
09:08 PM rue_shop1: so its little more than an unmarked handwheel
09:09 PM rue_shop1: my step intercetor code does not have the ability to do pulse rate conversion for the multipliers
09:14 PM Tom_L: hmm, that would be a very handy thing to have
09:27 PM rue_shop1: ok, for good, attempt 1
09:30 PM rue_shop1: I would like to do a semi-autonomous setup one day, "with current pos as the centerpoint, cut a circle with a 2cm diameter thats 1.75mm deep
09:30 PM rue_shop1: "
09:33 PM Tom_L: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Simple_LinuxCNC_G-Code_Generators
09:33 PM Tom_L: not the one i was after but good
09:37 PM rue_shop1: I set up as a dxf
09:37 PM rue_shop1: iirc last time I checked on dxg2gcode it wasn't looking good
09:37 PM Tom_L: he had a set of python routines to do simple tasks
09:37 PM rue_shop1: yep
09:37 PM rue_shop1: the one I was writing in C ran into gui issues
10:10 PM rue_shop3: OOO nice!
10:11 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1290047.jpg
10:12 PM rue_mohr: my other trick is to multi-stage it, and make dividers and stuff that are filled with silver
10:12 PM rue_mohr: its a few layers of stuff
10:12 PM Tom_L: is that one smaller?
10:12 PM rue_mohr: slightly
10:12 PM Tom_L: looks good
10:15 PM Tom_L: didn't you make some of those machine labels for somebody? or was that somebody else
10:16 PM Tom_L: i thought it was you
10:16 PM rue_mohr: it was me!
10:16 PM Tom_L: multi layer plastic
10:16 PM rue_mohr: I did some before for other equipment
10:16 PM rue_mohr: oh, the labels
10:16 PM rue_mohr: yea, for the place I used to work
10:16 PM Tom_L: i remember those
10:16 PM rue_mohr: lamacoids
10:16 PM rue_mohr: they asked for like 20 types one day
10:16 PM rue_mohr: its a freaking involved process
10:16 PM Tom_L: what were those speed/feed settings?
10:17 PM rue_mohr: slower
10:17 PM Tom_L: different plastic but close i bet
10:17 PM rue_mohr: 30mm/min
10:17 PM rue_mohr: I was just using 60
10:17 PM Tom_L: you can push this one alot more
10:17 PM rue_mohr: yes, but can I push the material?
10:17 PM rue_mohr: at some point the bit gets hot and things go wrong
10:19 PM Tom_L: chip loads... coolant
10:22 PM rue_mohr: yep
10:22 PM Tom_L: my kid runs aluminum @400 ipm
10:22 PM rue_mohr: I need to 3d print a mask for this
10:22 PM rue_mohr: oof
10:22 PM Tom_L: chip loads
10:22 PM Tom_L: 20-24k rpm too
10:22 PM rue_mohr: yea, I'm interested in what I can do with this
10:22 PM rue_mohr: brass and steel! mmmm
10:23 PM Tom_L: brass is harder than you think
10:23 PM Tom_L: i'd cut it about like steel on that
10:23 PM rue_mohr: but its self-lubricating
10:23 PM rue_mohr: hmm
10:23 PM rue_mohr: brass chips nice
10:23 PM Tom_L: you get a better finish with coolant
10:23 PM rue_mohr: k
10:23 PM Tom_L: remember the brass threads i sent?
10:24 PM rue_mohr: the couplers?
10:24 PM rue_mohr: no
10:24 PM Tom_L: the extinguisher cap
10:24 PM rue_mohr: oh yes.
10:24 PM rue_mohr: damn, they will never know what that is worth
10:25 PM rue_mohr: they wont even care }:[
10:25 PM rue_mohr: ok I need to not think about that
10:25 PM Tom_L: heh
10:28 PM rue_mohr: the longer I work the less I want to do anything extra to help :(
10:29 PM Tom_L: especially when nobody notices
10:29 PM rue_mohr: or cares what its done for them
10:32 PM Tom_L: my kid is experiencing that a bit now
10:32 PM rue_mohr: :(
10:32 PM Tom_L: there's always that one guy...
10:33 PM Tom_L: old school guy that can't be told anything
10:33 PM Tom_L: been proven wrong multiple times
10:45 PM rue_mohr: ok, mask designed...
10:47 PM rue_mohr: go and print that up...
10:47 PM Tom_L: gnite
10:54 PM rue_shop1: night