#garfield Logs
Jun 08 2020
#garfield Calendar
01:14 PM Tom_L: test
01:20 PM Tom_L: lazy damn bot
06:08 PM rue_mohr: hello
06:09 PM polprog: goodnight
06:09 PM polprog: i still remember the BH meter project
06:09 PM polprog: about*
06:09 PM polprog: dont worry
06:35 PM rue_mohr: oh good, I'd forgotten again
06:35 PM rue_mohr: ok
06:57 PM Tom_L: mmm
06:57 PM Tom_L: me thinks....
06:57 PM Tom_L: d
06:57 PM Tom_L: x
06:57 PM Tom_L: f
07:52 PM rue_mohr: ok!
07:52 PM rue_mohr: yes
07:52 PM rue_mohr: there is a layer called outst-adjust
07:54 PM rue_mohr: http://ruemohr.org/~ircjunk/objects/main.dxf
07:54 PM rue_mohr: outst-adjust is th right set
07:54 PM rue_mohr: I remember your program does not seperate the layers tho
07:54 PM rue_mohr: tell me if I need to remove the other ones
07:55 PM rue_mohr: melting
07:55 PM rue_mohr: I think it can be done with a 1.5mm cutter
07:55 PM rue_mohr: oo no, min radius is .625mm
07:56 PM rue_mohr: oh wait
07:56 PM rue_mohr: thats radius
07:56 PM rue_mohr: 1.25, I'd have to use a 1mm bit
07:56 PM Tom_L: what's the overall length of the part?
07:57 PM rue_mohr: 6mm
07:57 PM rue_mohr: but the last mm is a bit different
07:57 PM rue_mohr: 1 sec
07:58 PM Tom_L: that brought in double lines on both id and od of the part
07:58 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1160386.jpg
07:58 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1160387.jpg
07:59 PM rue_mohr: this is all thats left of the origional
07:59 PM rue_mohr: yea, its mixing the layers on ya
07:59 PM rue_mohr: I'll pair down a version of the dxf
07:59 PM Tom_itx: top view so i can see the hole
08:00 PM rue_mohr: the hole is the layer with the circle
08:00 PM rue_mohr: oh this will take a bit of work
08:00 PM Tom_itx: which set should i use?
08:01 PM Tom_itx: extreme inner and outer or the other set?
08:01 PM rue_mohr: nope
08:01 PM rue_mohr: it would be good if your program didn't just mash all the layers togethor
08:02 PM Tom_itx: that's what happens on a dxf import
08:02 PM rue_mohr: http://ruemohr.org/~ircjunk/objects/fortom.dxf
08:02 PM rue_mohr: its not a good importer :/
08:02 PM Tom_itx: sw can extrude it but it uses the inner set
08:02 PM rue_mohr: the circle is the inside hole at the bottom
08:03 PM rue_mohr: the two wiggles are the edges, those extend down 5 or the 6mm
08:03 PM rue_mohr: they reduce the wiggle to a hole to act as a stop on the bit that fits into the inside
08:03 PM rue_mohr: the great thing is, its plastic
08:04 PM rue_mohr: nylon, so we can set up the cuts accordingly
08:05 PM Tom_itx: that's better
08:06 PM Tom_itx: so the hole is the top right? and the star is the extrude
08:06 PM rue_mohr: I'm gonna say the bottom
08:06 PM rue_mohr: but its a wiggle cup on a cap with a hole
08:07 PM * Tom_itx runs down to australia to see the bottom
08:07 PM rue_mohr: those images, the wiggle bit got eaten out
08:07 PM rue_mohr: <rue_mohr> http://ruemohr.org/~ircjunk/tempimage/p1160386.jpg
08:07 PM rue_mohr: <rue_mohr> http://ruemohr.org/~ircjunk/tempimage/p1160387.jpg
08:07 PM Tom_itx: ok, the gap between the hole and the inner star is solid right?
08:07 PM rue_mohr: :) I posted the right iamges, yay
08:07 PM rue_mohr: yes
08:08 PM Tom_itx: that's the same damn images you just posted
08:08 PM rue_mohr: yea, I didn't check they were the right ones
08:08 PM Tom_itx: gimmme a straight down from the top view
08:08 PM rue_mohr: I'v oppsed a few times
08:09 PM Tom_itx: see i just need to extrude it a bit so i can post it to my cad cam as a solid, not a dxf
08:09 PM rue_mohr: wow, contrast evil
08:10 PM Tom_itx: the 'star' is 6mm?
08:10 PM rue_mohr: 5mm deep
08:10 PM rue_mohr: then it goes to the hole
08:10 PM Tom_itx: but overall length is 6mm
08:10 PM rue_mohr: yes
08:10 PM Tom_itx: how thick a wall is the 'hole' part of that
08:10 PM Tom_itx: 2mm?
08:10 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1160390.jpg
08:11 PM rue_mohr: 1mm
08:11 PM rue_mohr: see it got torn out?
08:12 PM rue_mohr: inner walls were eaten
08:12 PM Tom_itx: gawd that's dark
08:12 PM rue_mohr: its kinda like a lovejoy
08:12 PM rue_mohr: yea, thats the good image
08:12 PM Tom_itx: ok i see a ring
08:12 PM Tom_itx: how thick is the ring?
08:12 PM rue_mohr: 1mm
08:13 PM rue_mohr: you might be seeing the result of them tapering that 1mm where the hole is
08:13 PM rue_mohr: if I try too...
08:13 PM Tom_itx: one sec
08:14 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1160391.jpg
08:14 PM rue_mohr: the outside is tapered, but its easy enough to do with a file
08:14 PM rue_mohr: that wiggle part is the key
08:14 PM rue_mohr: it looks like I cant do it on my printer, its too thin
08:15 PM rue_mohr: its just a *bit* too thin
08:15 PM rue_mohr: so, if I can do it with a 1mm bit in some plastic, its a win
08:15 PM rue_mohr: oh
08:16 PM Tom_itx: http://tom-itx.no-ip.biz:81/~webpage/rue/widget.jpg
08:16 PM Tom_itx: 6mm overall, 1mm wall on the hole
08:16 PM rue_mohr: yes,
08:16 PM Tom_itx: what are the id radius?
08:17 PM Tom_itx: dunno if i have a cutter that small and deep at the same time
08:17 PM rue_mohr: that small id is .625mm
08:17 PM rue_mohr: radius
08:17 PM rue_mohr: so, too small for my 1.5mm cutters
08:17 PM rue_mohr: I have some 1mm
08:17 PM Tom_itx: .024" ?
08:18 PM rue_mohr: zippo:/morfiles/programming/c/avr/tiny13/loopCtrl1# units 0.625mm inch
08:18 PM rue_mohr: * 0.024606299
08:18 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1160311.jpg
08:18 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1160316.jpg
08:18 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1160327.jpg
08:18 PM Tom_itx: yeah i don't have anything that small
08:18 PM rue_mohr: ^^ more good shots, two of what it fits with
08:18 PM rue_mohr: hmm
08:18 PM rue_mohr: wanna try it blind?
08:18 PM rue_mohr: you make the nc and I'll try running it?
08:18 PM rue_mohr: :)
08:19 PM Tom_itx: it will be in inch
08:19 PM Tom_itx: well, maybe i can do mm
08:19 PM rue_mohr: er
08:19 PM Tom_itx: i have a metric post
08:19 PM rue_mohr: I wonder if mine can do imperial
08:19 PM Tom_itx: but i need the diameter of the tools
08:19 PM Tom_itx: no, i can post metric just fine
08:19 PM Tom_itx: i just never do
08:19 PM rue_mohr: well, lets go with a 1mm flat nose end mill
08:19 PM Tom_itx: where do you want x y zero?
08:20 PM Tom_itx: and where do you want z zero?
08:20 PM rue_mohr: not critical, middle?
08:20 PM rue_mohr: z zero top of material?
08:20 PM Tom_itx: dead nuts center of the circle
08:21 PM rue_mohr: I can dry run an imperial file too, I'd be curious if grbl will do it, I dont see why not
08:22 PM Tom_itx: you will probably need to edit out a few gcodes for grbl
08:22 PM Tom_itx: lemme get it to my cad cam and we can go from there
08:22 PM Tom_itx: gimme a few
08:23 PM rue_mohr: yea, I'm just sitting here trying to stay awake
08:23 PM rue_mohr: I got home and cut down a tree
08:23 PM Tom_itx: well don't fall asleep
08:23 PM rue_mohr: got a package from ali, some leds
08:24 PM rue_mohr: those other images give ya some context?
08:24 PM Tom_itx: ok i'll see if sw export will work. it's iges doesn't work well with my cad
08:24 PM Tom_itx: you want inch or metric?
08:25 PM rue_mohr: lets try imperial, I'm curious
08:25 PM Tom_itx: so what's the inch dimension of your cutter then?
08:25 PM Tom_itx: and can you plunge cut?
08:25 PM rue_mohr: zippo:/morfiles/programming/c/avr/tiny13/loopCtrl1# units 1mm inch
08:25 PM rue_mohr: * 0.039370079
08:26 PM rue_mohr: do you manually work out the rpm to use?
08:27 PM Tom_itx: i have mine set to what i can do by trial and error
08:27 PM Tom_itx: but you can change that
08:27 PM Tom_itx: based on chip load what can you do?
08:28 PM Tom_itx: .001" chip load?
08:28 PM Tom_itx: .0005" ?
08:28 PM Tom_itx: per tooth
08:28 PM rue_mohr: I dont know
08:28 PM rue_mohr: 1mm is awefull flimsy
08:28 PM Tom_itx: i'll shoot for .0005" chip load... we'll see
08:28 PM rue_mohr: mine are 2 teeth
08:28 PM rue_mohr: ok
08:28 PM Tom_itx: are you gonna use plastic?
08:28 PM rue_mohr: yes, it has to be plastic
08:28 PM rue_mohr: sacraficial piece
08:29 PM Tom_itx: ok that's pretty forgiving then
08:29 PM rue_mohr: yep
08:29 PM Tom_itx: yay! it came in ok
08:29 PM Tom_itx: shocker
08:29 PM rue_mohr: :)
08:29 PM rue_mohr: its not abuot 25x too big tho, right?
08:30 PM Tom_itx: i'll measure it in a sec. probably
08:30 PM Tom_itx: i can scale it
08:30 PM rue_mohr: :)
08:31 PM rue_mohr: polprog, can you find a mains voltage toroidal transformer?
08:32 PM Tom_itx: so 6mm should be about 1/4" right?
08:33 PM Tom_itx: i need to scale this
08:33 PM rue_mohr: zippo:/home/dan/Downloads# units 6mm inch
08:33 PM rue_mohr: * 0.23622047
08:33 PM rue_mohr: you should install units..
08:34 PM Tom_itx: so if the units are inch and the distance top to bottom is 6 what is the scale factor?
08:34 PM rue_mohr: zippo:/home/dan/Downloads# fraction 0.2362
08:34 PM rue_mohr: Best Match for 0.236200, is 15/64 (0.234375)
08:34 PM rue_mohr: Error is 0.001825
08:34 PM rue_mohr: er, 1 sec
08:35 PM rue_mohr: heh, well 1/25.4
08:35 PM rue_mohr: zippo:/home/dan/Downloads# calc 1/25.4
08:35 PM rue_mohr: 1/25.4 -->> 0.0393701
08:35 PM Tom_itx: i may have to explode these surfaces before i can scale it... i'll try it first though
08:36 PM Tom_itx: 3d distance .2362
08:36 PM rue_mohr: whats a 3d distance?
08:36 PM Tom_itx: top to bottom
08:36 PM Tom_itx: and tip to tip on the star is .3435"
08:36 PM Tom_itx: right?
08:37 PM rue_mohr: zippo:/home/dan/Downloads# units 6mm inch
08:37 PM rue_mohr: * 0.23622047
08:37 PM Tom_itx: close enough
08:37 PM Tom_itx: ok the scale is ok then
08:37 PM rue_mohr: that wiggle is pretty high tol
08:38 PM rue_mohr: but we can see what we get
08:38 PM rue_mohr: I'm trying not to fall asleep
08:38 PM rue_mohr: the cat wants food
08:39 PM Tom_itx: ok what was the cutter again?
08:39 PM Tom_itx: and does it have enough flute length to make it to the bottom of the part?
08:42 PM rue_mohr: zippo:/home/dan/Downloads# units 1mm inch
08:42 PM rue_mohr: * 0.039370079
08:42 PM rue_mohr: should do, lets see..
08:51 PM zhanx_ is now known as zhanx
08:51 PM rue_shop2: yup 7mm
08:51 PM Tom_itx: ok how many depth passed do you recon you need to avoid breaking the cutter?
08:51 PM Tom_itx: how deep a cut per pass
08:51 PM aandrew: rue_shop2: what is that part off of?
08:51 PM aandrew: I saw the pics but don't recognize the device
08:51 PM rue_shop2: vibration saw
08:55 PM Tom_itx: the .03937 is the diameter?
08:57 PM Tom_itx: there we go... i almost forgot how to do this
08:57 PM Tom_itx: extract polylines from surfaces..
08:59 PM Tom_itx: ok rue_shop2 i need input
08:59 PM Tom_itx: how deep a cut can you take?
09:01 PM rue_mohr: I dont know
09:01 PM Tom_itx: the tool width in depth?
09:01 PM Tom_itx: more?
09:01 PM Tom_itx: less?
09:01 PM rue_mohr: if I said its a 7mm long bit thats 1mm dia, what does your gut say?
09:02 PM rue_mohr: pretty light I think
09:02 PM Tom_itx: 1mm?
09:02 PM rue_mohr: lets try it
09:02 PM Tom_itx: run this in air first
09:02 PM rue_mohr: sure
09:02 PM Tom_itx: we well cut the center star out
09:02 PM Tom_itx: then i will cut a little deeper for the hole unless you wanna drill the hole
09:03 PM Tom_itx: then i will cut the outside
09:03 PM Tom_itx: sound ok?
09:03 PM rue_mohr: yup
09:03 PM Tom_itx: do you need a lead in move or just plunge at the edge of the part and start cutting?
09:03 PM rue_mohr: oh I do like leadins
09:04 PM Tom_itx: ok, center to the inner profile then
09:05 PM rue_mohr: all one job?
09:05 PM rue_mohr: I'll just mill it from a block
09:05 PM Tom_itx: why not?
09:06 PM rue_mohr: yea
09:06 PM Tom_itx: then mill the bottom off to get the part out?
09:06 PM rue_mohr: yup
09:06 PM Tom_itx: you can do that manually?
09:06 PM rue_mohr: yup
09:08 PM rue_mohr: want to code and take circuit boards apart
09:08 PM rue_mohr: cant keep eyes open
09:08 PM rue_mohr: its only monday!
09:10 PM Tom_itx: i can give you some code to look at but it's not done
09:10 PM Tom_itx: just if you wanna test it
09:13 PM Tom_itx: http://tom-itx.no-ip.biz:81/~webpage/rue/coupler/
09:16 PM Tom_itx: that's inch output
09:16 PM rue_mohr: is it the first part of the spline?
09:16 PM Tom_itx: it's the inner star
09:16 PM rue_mohr: I can test it on the cnc
09:16 PM rue_mohr: but latter tonight
09:16 PM Tom_itx: top to bottom
09:16 PM Tom_itx: looks like 5 passes
09:17 PM Tom_itx: umm, zero z is the bottom of the part
09:17 PM Tom_itx: i should fix that
09:18 PM rue_mohr: hahah
09:18 PM rue_mohr: pls
09:18 PM Tom_itx: trying to convert and program both
09:18 PM rue_mohr: I dont get it, I' think its mental exhaustion
09:19 PM rue_mohr: lots of stress thinking at work
09:19 PM rue_mohr: its the only difference
09:19 PM Tom_itx: ok to verify, the part is 6mm thick?
09:19 PM Tom_itx: top to bottom
09:19 PM rue_mohr: yes
09:20 PM rue_mohr: the wiggly part is 5mm
09:20 PM Tom_itx: well it's gonna be wiggly clear to the bottom on the outside
09:21 PM rue_mohr: ok
09:22 PM Tom_itx: ok the model now shows the top as zero
09:22 PM Tom_itx: is that how you set your tools?
09:22 PM rue_mohr: I do a lot of profile cuts, so I tend to set the zero 0.25mm over the top
09:22 PM rue_mohr: and then overcut them
09:23 PM Tom_itx: you want zero .0098" above the part?
09:25 PM rue_mohr: no, I'll put it dead on
09:25 PM Tom_itx: ok
09:26 PM Tom_itx: i'll give it about .1" z clearance
09:26 PM rue_mohr: k
09:26 PM Tom_itx: for tool moves
09:26 PM rue_mohr: I think I jog at 3mm
09:26 PM Tom_itx: i like lots of clearance for fuckups
09:26 PM rue_mohr: units 3mm inch
09:26 PM rue_mohr: * 0.11811024
09:26 PM rue_mohr: yep
09:28 PM Tom_itx: is .039" too deep a cut per pass?
09:29 PM rue_mohr: hmm
09:29 PM rue_mohr: its plastic
09:29 PM rue_mohr: sure
09:29 PM Tom_itx: (tool diameter) is what the cad calculates for depth
09:30 PM Tom_itx: ok, posting the center star
09:31 PM Tom_itx: looks like it does a 45deg plunge cut. not straight down
09:31 PM rue_mohr: the wiggle is straight down
09:32 PM Tom_itx: grab that file
09:32 PM rue_mohr: ...
09:32 PM Tom_itx: http://tom-itx.no-ip.biz:81/~webpage/rue/coupler/
09:32 PM Tom_itx: that's just the inside star
09:32 PM Tom_itx: 5 passes
09:32 PM rue_mohr: ok
09:32 PM Tom_itx: you will probably need to edit out some gcodes maybe
09:33 PM Tom_itx: stuff grbl doesn't support
09:33 PM Tom_itx: the path will work
09:33 PM rue_mohr: k
09:35 PM rue_mohr: I'm gonna try it when I wake up
09:36 PM Tom_itx: you think you can cut the hole in 1 pass?
09:36 PM Tom_itx: 1mm
09:36 PM rue_mohr: everythign else is 1mm
09:38 PM Tom_itx: starting over. crashed
09:38 PM rue_mohr: ouch!
09:38 PM rue_mohr: didn't save!?
09:38 PM Tom_itx: i got most of it
09:38 PM Tom_itx: not the cuts
09:43 PM rue_mohr: you build the cuts in the same program as the object eh?
09:43 PM Tom_itx: of course
09:43 PM Tom_itx: it's called cad cam
09:43 PM Tom_itx: you should try it :)
09:46 PM rue_mohr: damnit, I dont wanna sleep
09:46 PM rue_mohr: its like being drugged tom
09:49 PM Tom_itx: almost done
09:59 PM Tom_itx: ok i posted the whole program
09:59 PM Tom_itx: inside star, bottom hole then outside
10:20 PM Tom_L: no leadin on the outside profile
10:21 PM Tom_L: i can add one if needed but i didn't know where the edge of your material would be
10:28 PM Tom_L: rue_mohr checked out on me...
10:29 PM Tom_L: zero is top center of the part
10:39 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/coupler/widget.jpg
10:39 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/coupler/widget2.jpg
10:40 PM Tom_L: looks like 5 passes on the inside, one on the circle and 6 on the outside
10:42 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/coupler/widget3.jpg
10:42 PM rue_mohr: ok!
10:42 PM Tom_L: blue is the cutter path
10:43 PM Tom_L: you need it broke up into 2 or 3 programs i can..
10:43 PM rue_mohr: na, 1 tool
10:44 PM Tom_L: well that _should_ make a part
10:44 PM rue_mohr: :) I'll try a dry run in a bit
10:44 PM rue_mohr: I'd do it now but I'm groggy and cold
10:45 PM Tom_L: i'm waiting for laundry to dry so i'll be up a little while.
10:45 PM Tom_L: not long
10:45 PM Tom_L: tea
10:45 PM Tom_L: make tea
10:45 PM rue_mohr: drinking it already
10:51 PM Tom_L: says it should take about 7 min to cut
10:51 PM Tom_L: at those feeds
10:51 PM rue_mohr: the target volume is 1
10:52 PM rue_mohr: so far I'v failed to be able to 3d print it :)
10:52 PM Tom_L: just make sure the plastic is thicker than you need so you can cut the bottom off
10:53 PM rue_mohr: about 6.35mm?
10:53 PM Tom_L: it's 6mm so i suppose
10:53 PM Tom_L: if the table is flat
10:54 PM Tom_L: should be about .0005" chip load
10:54 PM rue_mohr: ok
10:55 PM rue_mohr: what rpm did it call for?
10:55 PM Tom_L: i set it for 3500 iirc
10:55 PM rue_mohr: ok
10:55 PM Tom_L: or 3000
10:55 PM Tom_L: i forget
10:56 PM Tom_L: 3500
10:56 PM Tom_L: 3.5 ipm
10:56 PM Tom_L: plunge feed is 1.75
10:58 PM rue_mohr: I lost the browser tab with it, just went thru all the iwndows, the browser is crashng and its slow as all hell
10:58 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/coupler/
10:59 PM rue_mohr: 3500
11:00 PM Tom_L: you need something else?
11:00 PM rue_mohr: hah
11:00 PM rue_mohr: sorry, I'm good
11:13 PM rue_shop3: it doesn't like G43, is that set local 0?
11:13 PM Tom_L: tool length offset
11:13 PM Tom_L: used with the "H" word
11:13 PM rue_shop3: hah, it really rips thru that gcode
11:14 PM Tom_L: cause it was done from a surface
11:14 PM Tom_L: converted to polylines
11:15 PM rue_shop3: oh it short-forms the g commands into co-ordinate streams, neat
11:15 PM Tom_L: ?
11:15 PM Tom_L: oh, yeah it doesn't repeat modal commands
11:16 PM Tom_L: i could have turned line numbers off but i kinda like to see them
11:18 PM rue_shop3: does it exit/reenter the hole in the middle a few times?
11:18 PM Tom_L: no
11:18 PM Tom_L: no need, the star clears out the hole
11:18 PM Tom_L: then it goes to the center of that level and cuts the hole from the center out
11:19 PM Tom_L: it was only 1mm deep right?
11:19 PM rue_shop3: ok, interesting, its pulled the bit out a few times
11:19 PM Tom_L: pulled the bit out?
11:19 PM rue_shop3: hhaha
11:19 PM rue_shop3: 7 mins, 8 seconds
11:19 PM Tom_L: each pass it goes to z clear which is .1"
11:20 PM rue_shop3: ok
11:20 PM Tom_L: ran ok?
11:20 PM rue_shop3: well, let me theck the air-prototype....
11:20 PM rue_shop3: :)
11:20 PM Tom_L: but did it seem too fast?
11:20 PM rue_shop3: I squished it with the calipers :)
11:21 PM rue_shop3: it seemed fast, but material, so, I dunno
11:21 PM rue_shop3: if I break a bit we can back it off a lot?
11:21 PM Tom_L: i can edit the tool parameters if you want
11:21 PM rue_shop3: I'll find material tommorow, hound me eh?
11:22 PM Tom_L: the scale look ok?
11:22 PM rue_shop2: yes
11:22 PM rue_shop2: part of why it was ripping thru the commands so fast
11:23 PM rue_shop2: I think it actaully taxed the serial connection
11:23 PM Tom_L: so you removed the whole g43 line?
11:23 PM rue_shop2: no, it just says ERROR and keeps going
11:23 PM rue_shop2: biab
11:36 PM Tom_L: ok, laundry done. off to bed
11:39 PM MoonyMoon: rue_shop2: Got my caps today :)