#garfield Logs
Feb 04 2018
#garfield Calendar
12:00 AM rue_shop3: so the activation lever comes thru at an angle
12:03 AM rue_shop3: with that part thicker, the rectangular hole hits the lever
12:03 AM rue_shop3: hmm
12:03 AM rue_shop3: options are moving the spacer back, or buiting the slot for it forward a bit
12:03 AM Tom_L: make the slot longer
12:03 AM rue_shop3: which makes me cringe, cause its weakening everything
12:06 AM rue_shop3: hold up
12:06 AM rue_shop3: the can is higher than I thought
12:06 AM rue_shop3: oh, its ok
12:06 AM Tom_L: still printing?
12:06 AM rue_shop3: yes
12:06 AM rue_shop3: :) next model ready?
12:06 AM rue_shop3: this is the life of 3d printing
12:06 AM Tom_L: no, i'm about to go sleep
12:06 AM rue_shop3: print not finished: but is obsolete
12:06 AM rue_shop3: np, I'll catch ya tommorow
12:06 AM Tom_L: how much longer?
12:06 AM rue_shop3: ;-) unless you unexpectedly go on holidays
12:06 AM rue_shop3: says 25 mins
12:07 AM Tom_L: is A7 plastic?
12:07 AM Tom_L: A3
12:07 AM Tom_L: A18
12:10 AM rue_shop3: 2, 3, and 7 are 3d printed
12:10 AM rue_shop3: BUT, the trigger, A3 is being a problem
12:10 AM rue_shop3: dispite it taking an INSANE amount of force to break them, they are
12:10 AM Tom_L: plastic?
12:10 AM rue_shop3: 3d printed, PLA yea
12:11 AM Tom_L: change to aluminum
12:11 AM rue_shop3: were changing the print params
12:11 AM rue_shop3: but making some aluminum ones too
12:11 AM rue_shop3: we have both machines going flat out
12:11 AM Tom_L: 1/8"?
12:11 AM rue_shop3: no 1/4"
12:11 AM rue_shop3: which were having sourcing issues with
12:12 AM rue_shop3: trying not to buy a 4'x4' peice
12:12 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/local_stock/stock_index.php
12:12 AM rue_shop3: yea, I know
12:13 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/local_stock/15.jpg
12:13 AM rue_shop3: not helping me here!
12:13 AM Tom_L: you're in the wrong spot on the map
12:13 AM rue_shop3: I know
12:13 AM rue_shop3: nobody makes anything here anymore
12:13 AM rue_shop3: you can see it when you try to get stuff like 1/4" bar
12:14 AM Tom_L: they got 2' bar here
12:14 AM rue_shop3: should be an everyday item, its special order
12:14 AM Tom_L: diameter
12:14 AM rue_shop3: sorry 1/4" round steel rod
12:14 AM rue_shop3: for those pins
12:14 AM rue_shop3: A4 and unlabeled
12:14 AM Tom_L: use roll pins
12:14 AM rue_shop3: 15mm long 1/4"
12:14 AM rue_shop3: 8-|
12:14 AM rue_shop3: oh god
12:15 AM rue_shop3: wtf didn't that occur to me?
12:15 AM rue_shop3: the origional guy was using copper pipe
12:15 AM Tom_L: :)
12:15 AM rue_shop3: I can prolly get them from fastness
12:15 AM rue_shop3: I can prolly get them from fastnell
12:15 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/local_stock/9.jpg
12:15 AM Tom_L: chuck that up in your lathe
12:22 AM Tom_L: yeah i was over there the other day
12:22 AM Tom_L: gettin some more M5 screws
12:22 AM Tom_L: my other guy was out
12:23 AM Tom_L: https://www.fastenal.com/products/details/26750
12:24 AM Tom_L: or do you want the slotted pins?
12:24 AM Tom_L: spring type
12:25 AM Tom_L: https://www.asmc.net/1-4-x-5-8-roll-pin-spring-pin-medium-carbon-steel-plain-finish-no-plating-pk-1000/?gclid=EAIaIQobChMI1Pem8M6L2QIVgZJ-Ch1nzQdgEAQYAiABEgLXW_D_BwE
12:25 AM Tom_L: like those
12:25 AM Tom_L: but cheaper
12:33 AM rue_shop3: SO
12:33 AM rue_shop3: right now, material cost, were at 0.12 ea for the pins, untreated steel roll pins are 0.08 and stainless ones are 0.24
12:39 AM rue_shop3: china only has 6mm and they aren't cheaper
12:40 AM rue_shop3: oh its done
12:42 AM rue_shop3: yea
12:42 AM rue_shop3: thats the right curve
12:42 AM rue_shop3: hole is in the right spot
12:44 AM rue_shop3: oh, ok, the back , no, hmmm
12:44 AM rue_shop3: the screw hole wont need that countersink...
12:45 AM rue_shop3: and it can be taken to a 5mm dia, I'm gonna run an old screw in from the top of the pipe
12:46 AM rue_shop3: huh, my printers alignment is way out
12:46 AM rue_shop3: fix that later
12:50 AM rue_shop3: Tom_L, awesome stuff!
07:10 AM Tom_L: pics or it's just vapor
12:05 PM rue_bed: fergot pics
12:05 PM rue_bed: k
12:06 PM rue_bed: or did I, waking up, please stand by
02:03 PM Tom_L: did it work out better?
02:04 PM Tom_L: i gotta brush up on milling surfaces
02:04 PM Tom_L: it's been eons since i did any
02:14 PM Tom_L: btw, none of those arcs on the end have the same centerpoint
02:17 PM Tom_L: i think it would be quicker to redraw this in my cad cam
02:52 PM rue_shop3: they aren't supposed to, its lapped for the cut
02:53 PM rue_shop3: I cant remember the blade width its set for
02:53 PM Tom_L: would it matter if they were?
02:54 PM Tom_L: how'd that one fit btw
03:12 PM rue_shop3: let me see if I took pics
03:14 PM rue_shop3: I didn't, stand by
03:14 PM Tom_L: meh, i'll sit by
03:41 PM rue_shop4: I thought I took a picture before I cut it
03:45 PM Tom_L: CUT IT!!
03:47 PM rue_: to make it fit the spacer peice that I havn't modified
03:51 PM rue_: http://ruemohr.org/~ircjunk/not_public_dont_open/tom/p1090654.jpg
03:51 PM rue_: I just cut it for now, I have to redesign the blue peice
03:51 PM rue_: http://ruemohr.org/~ircjunk/not_public_dont_open/tom/p1090651.jpg
03:51 PM rue_: http://ruemohr.org/~ircjunk/not_public_dont_open/tom/p1090650.jpg
03:52 PM rue_: ^^ I have to ditch that hole, simplify and move back the shoulder
03:52 PM rue_: http://ruemohr.org/~ircjunk/not_public_dont_open/tom/p1090649.jpg
03:52 PM rue_: http://ruemohr.org/~ircjunk/not_public_dont_open/tom/p1090648.jpg
03:52 PM rue_: see?
03:55 PM Tom_L: how are you liking this one so far?
03:56 PM Tom_L: i don't know why i was thinking it gripped around the fat of the can seal instead of the top
03:57 PM Tom_L: makes me wanna go cut one but i gotta get it programmed first
04:08 PM Tom_L: so send me that plastic trigger part too and we'll make that from alum
04:31 PM Tom_L: rue_shop3, is that piece 1/4" thick or 1/2" ? i think it's 1/4"
04:31 PM Tom_L: A9
05:01 PM rue_shop4: hu?
05:02 PM rue_shop4: the origional A9/10 was 1/8" material
05:02 PM Tom_L: yeah but the new one is 1/4" right?
05:02 PM Tom_L: slowly breaking down the cutter paths
05:03 PM Tom_L: question
05:03 PM Tom_L: would a .750 radius cutter be ok for those corners?
05:03 PM Tom_L: instead of the 87 or whatever it was
05:05 PM Tom_L: then it wouldn't need to be ballnosed
05:05 PM Tom_L: but the radius wouldn't go all the way to the front either
05:06 PM rue_shop4: yea that would work in 1/4"
05:06 PM Tom_L: it probably won't work anyway
05:07 PM Tom_L: because the cutter radius is bigger than the material thickness
05:07 PM rue_shop4: .75, hmm
05:07 PM Tom_L: guess it's ballnose
05:07 PM Tom_L: it would hang past the material .5"
05:07 PM rue_shop4: that top radius can be a bit crude
05:07 PM Tom_L: but it doesn't need to go all the way to the can does it?
05:08 PM Tom_L: can part of that just be square?
05:08 PM Tom_L: i'm just trying to make it easier to mill
05:08 PM rue_shop4: its just got to fit in that pipe
05:08 PM Tom_L: also
05:09 PM Tom_L: does that front part by the can really need to be milled down to 1/8" or can it be 1/4" right up to the ridge?
05:09 PM rue_shop4: has to be milled donw
05:09 PM Tom_L: then cut down to fit the can lip
05:09 PM rue_shop4: did you see those images?
05:10 PM Tom_L: i don't think it does
05:10 PM rue_shop4: http://ruemohr.org/~ircjunk/not_public_dont_open/tom/p1090654.jpg
05:10 PM rue_shop4: it does
05:10 PM rue_shop4: it fits in the crack
05:10 PM rue_shop4: http://ruemohr.org/~ircjunk/not_public_dont_open/tom/p1090651.jpg
05:10 PM rue_shop4: ^^
05:10 PM Tom_L: right but the rest could be 1/4"
05:10 PM rue_shop4: no
05:10 PM rue_shop4: clasp
05:10 PM Tom_L: i got the flange part... i understand that
05:11 PM rue_shop4: http://ruemohr.org/~ircjunk/not_public_dont_open/p1090632.jpg
05:11 PM rue_shop4: see latch?
05:11 PM Tom_L: the clasp could be 1/4 too
05:11 PM rue_shop4: no it has to overcentre
05:11 PM rue_shop4: its behind the damn lever
05:11 PM Tom_L: ok
05:12 PM rue_shop4: :/
05:12 PM Tom_L: 1/8" it will be
05:12 PM * Tom_L recalculates the programming and machine time costs
05:13 PM rue_shop4: I'll take images of the clasp better
05:14 PM Tom_L: i understand how it works and i still think it would work that way
05:14 PM rue_shop4: just not now, running back and forth to and from the house taking and posting images is wearing me out
05:14 PM Tom_L: pfft
05:14 PM Tom_L: good exercise
05:14 PM rue_shop4: I'll get the PI camera going and be able to have images go stright to the page
05:14 PM Tom_L: i just want to program this once is all
05:14 PM rue_shop4: every time I take a pic I have to go to the house
05:15 PM rue_shop4: transfer the images to the compuiter
05:15 PM rue_shop4: scale them
05:15 PM rue_shop4: post them
05:15 PM rue_shop4: paste links
05:15 PM Tom_L: grab tea
05:26 PM Tom_L: how deep was that groove?
05:26 PM Tom_L: .09something
05:43 PM rue_shop4: its not documented I have to search log...
05:44 PM rue_shop4: er odd, cant find it in the scrollback
05:44 PM rue_shop4: .091" deep radius is .068
05:46 PM Tom_L: yeah i figured it out
06:16 PM rue_shop4: do you think its makeable?
06:16 PM rue_shop4: wow, lots of visitors for a sunday
06:18 PM Tom_L: of course it's manufacturable
10:07 PM ASRock_pc: https://www.youtube.com/watch?v=kh5cNHgPRzw&feature=youtu.be
10:07 PM ASRock_pc: once it's uploaded
10:13 PM rue_: thats one hell of a jog clearance!
10:13 PM rue_: the program I use only does 3mm
10:13 PM rue_: I file the screws down to make sure I clear
10:15 PM Tom_L: you can see the path now
10:15 PM Tom_L: i'm gonna reorder it a bit
10:15 PM Tom_L: i'll file the screws down with the cutter :D
10:16 PM Tom_L: i'll change the jog clearance, i leave it high until i'm done
10:16 PM rue_: brass screws
10:17 PM Tom_L: i think after i do the radius, i'll put the screw back in the slot and do a final depth profile cut
10:17 PM Tom_L: then nothing will fly off it
10:18 PM Tom_L: so i'll move one of those to the last
10:18 PM Tom_L: and i could raise it up .003" to leave a tin foil layer to snap the part out of
10:19 PM rue_: or just a few 1.5mm high by 2mm wide tabs
10:19 PM Tom_L: meh, too much effort
10:19 PM Tom_L: so what do you think?
10:20 PM rue_: cool stuff, can it be made?
10:20 PM Tom_L: i'll try one once i get time
10:20 PM Tom_L: sure it can be made
10:21 PM rue_: with anyting we can get ahold of?
10:21 PM Tom_L: what do you mean?
10:22 PM rue_: well, I'm curious if your machine can make it, I know mine cant
10:22 PM Tom_L: 3/16 EM, spot drill, other drill just for the holddown hole (one time only into the fixture), 3/16 Ball Mill
10:23 PM Tom_L: i wouldn't have spent the time programming if i couldn't make it
10:23 PM rue_: :) I want to see!
10:23 PM Tom_L: first run, no video
10:23 PM Tom_L: all hands on deck
10:23 PM rue_: np
10:23 PM Tom_L: i'll cut a chunk of wood first
10:23 PM rue_: yep
10:24 PM rue_: easy on the bits
10:24 PM Tom_L: i don't think those are agressive cuts
10:24 PM Tom_L: 1/2 the tool diameter depth each pass
10:27 PM Tom_L: i bet it's a hefty size gcode file though
10:28 PM rue_: 1/2 the tool dia and adjust the feed rate to the bits load rating?
10:29 PM Tom_L: 41k file
10:29 PM Tom_L: not that bad
10:30 PM Tom_L: your prints are probably alot bigger than that
10:30 PM rue_: 41878 bytes for my version
10:31 PM rue_: of the front assembly
10:31 PM rue_: its the largest
10:31 PM rue_: the normal lever is the smallest at 15k
10:49 PM Tom_L: if i'd have redrawn that it would have been 1/10th that size because of all the poly lines
10:49 PM Tom_L: they would have been arcs and lines
10:49 PM Tom_L: lots bigger segments
10:51 PM rue_shop3: dont understand why they didn't import as arcs
10:51 PM rue_shop3: they are in the dxf
10:51 PM Tom_L: remember, dxf is flat
10:52 PM Tom_L: i had to make it non flat to import it
10:52 PM Tom_L: that converts it all to polylines
10:52 PM Tom_L: even if they aren't
10:52 PM Tom_L: or surfaces rather
10:52 PM Tom_L: then i convert them to polylines in the cad cam
10:52 PM Tom_L: that's just how 3d works
10:56 PM Tom_L: just checked... i've got a 6 x 18 chunk of 1/4" out there to try one
10:56 PM rue_shop3: the flat dxf uses arcs
10:56 PM Tom_L: yep
10:56 PM rue_shop3: just seems odd to me
10:56 PM rue_shop3: esp the low resolution
10:56 PM Tom_L: heh, that's just how it works
10:57 PM rue_shop3: k
10:57 PM rue_shop3: I made a step on my optical encoder project
10:57 PM rue_shop3: .. I'll take a pic...
10:57 PM rue_shop3: maybe I need an image stream....
10:57 PM rue_shop3: its a 3d printed part fit over a cnc'd part
10:58 PM rue_shop3: worked quite well
10:58 PM rue_shop3: lots of deisgn issues yet for an encoder, but I'm making progress
10:59 PM rue_shop3: ok back to 4 machines running, back to my room...
11:03 PM Tom_L: kinda fun, i had to remember how surfaces worked. it'd been so long
11:03 PM Tom_L: takes longer in that old software over new stuff
11:03 PM Tom_L: all the new stuff auto updates paths when you make a geometric change
11:03 PM Tom_L: this doesn't
11:04 PM Tom_L: that's why i wanted to be sure of the model first
11:05 PM rue_: so I need to send you some 3d printed parts
11:06 PM Tom_L: why?
11:06 PM rue_: to build one :)
11:06 PM Tom_L: sell it to someone
11:07 PM rue_: is it ok to sell a prototype?
11:07 PM rue_: your ONLY one?
11:07 PM Tom_L: i'd like to find something this thing could make some cash doing
11:07 PM Tom_L: and find the time to do it
11:07 PM rue_: :( they dont make bearings with a 7.5mm OD
11:07 PM Tom_L: what for?
11:07 PM rue_: well, we would be ahppy to pay ya to make em if all the costs work
11:08 PM rue_: well, I had an idea
11:08 PM Tom_L: what's it cost to make the one you make?
11:08 PM rue_: I want ot make little encoders, the idea occured to me before I woke up this morning to use those little pipes from lamps (externally threaded pipe)
11:08 PM rue_: the idea was to bore it out to the nearest proper size and push in some beraings
11:09 PM Tom_L: hmm
11:09 PM rue_: their thin, and they are just under 7.5,,
11:09 PM rue_: 7.5mm
11:09 PM rue_: Tom_L, I'll have to work on what it costs, material is easy
11:09 PM Tom_L: that's almost .3"
11:09 PM rue_: I'm not sure on all the labour, we have guestimates
11:09 PM rue_: units 7.5mm inch
11:09 PM rue_: * 0.29527559
11:09 PM Tom_L: slotcar bearings or such
11:10 PM Tom_L: something like that
11:10 PM rue_: fraction .295
11:10 PM rue_: Best Match for 0.295000, is 19/64 (0.296875)
11:10 PM rue_: Error is -0.001875
11:11 PM Tom_L: i was gonna make a roller for my way cover too but i'm not sure if that'll ever get done
11:11 PM rue_: yea, you were talking about likea blid
11:11 PM rue_: blind
11:12 PM Tom_L: i got the neoprene free the other day
11:12 PM rue_: can you find some old roll blinds at a garage sale and try modifying them?
11:12 PM Tom_L: maybe
11:12 PM Tom_L: i was hoping for something smaller diameter
11:13 PM Tom_L: you should send that trigger file too so i can model it in alum
11:13 PM Tom_L: A3
11:14 PM Tom_L: A7 is the part you'll have to mod for this right?
11:19 PM Tom_L: early day.. gnite
11:20 PM rue_: ah ok, catch ya later
11:21 PM rue_: dunno where my blowup pdf went
11:21 PM rue_: :) your having fun
11:22 PM Tom_L: http://ruemohr.org/~ircjunk/not_public_dont_open/tom/Blowup.pdf
11:22 PM rue_: there might be a solidworkd file for the trigger
11:22 PM rue_: can you open a solidworks file?
11:22 PM Tom_L: sure
11:22 PM rue_: ok I'll check into it tommorow
11:22 PM Tom_L: can you?
11:23 PM rue_: most of the 3d printed stuff was origionally done in solidworks
11:23 PM rue_: by thejester
11:23 PM Tom_L: oh
11:23 PM rue_: who had a stroke and cant use his right hand currently
11:23 PM Tom_L: see you need to keep prints for all this stuff
11:23 PM rue_: hah
11:23 PM Tom_L: that sucks
11:23 PM rue_: yea
11:24 PM rue_: its really hitting him hard emotionally
11:24 PM Tom_L: it would bother me i'm sure
11:24 PM rue_: no mouse
11:24 PM Tom_L: after the pinched nerve my left index is numb
11:24 PM Tom_L: makes it hard to find the keyboard keys
11:24 PM rue_: damn
11:25 PM rue_: where did the nerve get pinched?
11:25 PM Tom_L: just makes it slower
11:25 PM Tom_L: c6-7
11:25 PM rue_: just in your neck?
11:25 PM Tom_L: yeah but it went down my side and arm
11:25 PM rue_: ok I cant use threaded lamp rod, if I'm going to do this it'll have to be borring out some high pitch bolt
11:25 PM Tom_L: it's better now but not 100%
11:26 PM Tom_L: anyway. later
11:26 PM rue_: I remembered my grandmother with her right arm in a sling
11:26 PM rue_: ma says she had a stroke and lost use of it for 2 years
11:26 PM Tom_L: aging sucks
11:26 PM rue_: "for supper, I want to be a robot that dosn't need to eat"
11:26 PM rue_: @$%^@#$% supper...
11:26 PM Tom_L: i need to get a good vise for the cnc now
11:27 PM rue_: did you see the little one I made?
11:27 PM Tom_L: 4" i think
11:27 PM Tom_L: yeah
11:27 PM rue_: I was impressed
11:27 PM Tom_L: gonna get a good one though
11:27 PM Tom_L: kurt are $$$$
11:27 PM Tom_L: but nice
11:27 PM rue_: http://ruemohr.org/~ircjunk/projects/vise/p1090461.jpg I didn't quite get the movable jaw tight enough
11:27 PM rue_: lifts some
11:28 PM rue_: and its all welded, so no going back
11:28 PM Tom_L: that's what i wanna avoid
11:28 PM rue_: that milling machine I got
11:28 PM rue_: the vise on it was worth what I paid for everything
11:28 PM rue_: GO TO BED!
11:28 PM rue_: :)
11:29 PM Tom_L: http://www.shars.com/products/toolholding-workholding/vise/4-440v-cnc-milling-machine-vise-0-0004-1
11:30 PM rue_: I wonder if I can make a better one...
11:30 PM Tom_L: https://www.ajaxtoolsupply.com/kurtd40.html?cmp=googleproducts&kw=kurtd40&gclid=EAIaIQobChMI49G6rYWO2QIVwZd-Ch0VTAl5EAQYBCABEgKnlfD_BwE
11:30 PM Tom_L: comparted to kurt
11:31 PM Tom_L: my bud said he has a kurt 6" i can have but i don't think it will fit the machine
11:33 PM rue_: both those seem kinda low priced
11:33 PM rue_: I wonder where I was looking at $600 vises
11:33 PM rue_: oh 4"
11:33 PM rue_: I was prolly looking at 6" or 8"
11:33 PM Tom_L: shars is a 'quality' chinese knockoff
11:33 PM Tom_L: the 4" kurt is actually more than the 6"
11:33 PM rue_: I was gonna say it kinda looks like it
11:33 PM Tom_L: because the 6" are so common
11:34 PM Tom_L: https://www.ajaxtoolsupply.com/4kustcncsuvi.html?cmp=googleproducts&kw=4kustcncsuvi&gclid=EAIaIQobChMI49G6rYWO2QIVwZd-Ch0VTAl5EAQYAiABEgJuy_D_BwE
11:34 PM Tom_L: was another one i was looking at