#garfield Logs

Mar 25 2018

12:14 AM rue_: A3...
12:17 AM rue_: no redesign done yet
12:17 AM rue_: chewign on all sorts f things
10:52 AM Tom_L: you making A3 - trigger out of plastic right now? was it an option to make a metal one?
10:52 AM Tom_L: and i wanted to verify it's length so i know the cad came in in inch
12:02 PM rue_: ah
12:02 PM rue_: I'll measure one, but there are two lengths
12:02 PM rue_: depending if its an A3 or B3
12:03 PM rue_: the metal ones we just file/sand round, but yea, otherwise their printed
12:03 PM rue_: oh Tom_L , the hole should be 1/4" or 6.5mm
12:04 PM rue_: I think its designed to 1/4 and we drill 6.5
12:30 PM Tom_L: i know the hole size
12:30 PM Tom_L: i wanted the length from end to end on the A3
12:30 PM Tom_L: would a nice chamfer work for the edge?
12:31 PM Tom_L: ends up damn smooth
05:13 PM rue_: to be comfortable, it has to be pretty found
05:13 PM rue_: round
05:48 PM Tom_L: i'll run one and show you
07:23 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A3/A3_fixtures.jpg
07:23 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A3/A3_P2.jpg
07:23 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A3/A3.jpg
07:24 PM Tom_L: i'm gonna make the chamfer a little deeper but it's really smooth like it is
07:49 PM Tom_L: A3.jpg is gone
07:49 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A3/A3_1.jpg
07:49 PM Tom_L: added .020" chamfer: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A3/A3_2.jpg
07:49 PM Tom_L: hit it with some paper and it should be nice
07:49 PM Tom_L: it's smooth as it is
08:30 PM Tom_shop: ok doing a full 2 part run
08:32 PM rue_: :)
08:32 PM rue_: we will get back into it yet
08:32 PM rue_: your jig is perfect
08:33 PM Tom_shop: i'm doing 2 1st position because of the 2nd position.
08:33 PM Tom_shop: just getting programs ready
08:33 PM * rue_ nods
08:33 PM Tom_shop: the last chamfer is better if you want more rounded
08:34 PM Tom_shop: would work as is but you could sand it if you like
08:34 PM rue_: it does need to be pretty round
08:34 PM rue_: oh I' thinking of the jog for the latch, heh
08:34 PM rue_: cool
08:35 PM Tom_shop: nearly done with P1
08:35 PM Tom_shop: no this is the trigger finger you make from plastic now
08:35 PM rue_: I know
08:35 PM Tom_shop: "upgrade"
08:36 PM rue_: :) we made some metal triggers from scrap 1/4"
08:36 PM rue_: not used them yet
08:36 PM Tom_shop: these look pretty nice to me
08:36 PM katsmeow: <blink>
08:37 PM rue_: hi kat
08:37 PM katsmeow: hirue
08:37 PM * katsmeow toasts Tom
08:38 PM katsmeow: weather here said to not travel there tuhnite or tuhmaruh, do tuh wayether
08:38 PM * rue_ checks kats bal
08:39 PM rue_: says 'low' but...
08:39 PM * rue_ taps the guage
08:39 PM * katsmeow tries to right herself
08:40 PM rue_: "write error"?
08:40 PM rue_: kat the 2hp enigne for the mecha works!
08:40 PM katsmeow: yeas, it's that write to hdd over lan bug
08:41 PM katsmeow: great! can you actually hook things to it to use that engine's power band?
08:41 PM rue_: I think a 2:1 gearbox is a good start
08:41 PM katsmeow: sounds heavy, noisey, and needy of perfect alignment, to me
08:42 PM rue_: 2hp?
08:42 PM katsmeow: hook it to a 3000 rpm drill and see how loud it is
08:42 PM rue_: its a boat engine, its loud enough already
08:43 PM rue_: I have to clear the water jacket too, its plugged up
08:43 PM katsmeow: have you considered a short shaft coupled via a flexdrive, and then teethed belts of different flavors coming off it?
08:43 PM Tom_shop: 2100 code lines gone away
08:43 PM rue_: its shaft is about 1/2" dia
08:43 PM rue_: it sticks out about 1.5"
08:44 PM katsmeow: "gone away" ? hdd crash ?
08:44 PM rue_: optimized I recon
08:44 PM katsmeow: o
08:44 PM rue_: oh thats something I'm gonna spend money on, that cam software liscence (lol)
08:44 PM rue_: and the gear library form woodgears
08:45 PM rue_: and whats YX8018
09:09 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A3/A3_P1.jpg
09:09 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A3/A3_A9_parts.jpg
09:14 PM Tom_L: all program, no debur
09:14 PM Tom_L: except A9 edges
09:26 PM Tom_L: even if these don't get used, i'm havin fun practicing
09:26 PM Tom_L: i was getting too rusty
09:26 PM * katsmeow has some "arms" she needs made precisely
09:27 PM * Tom_L can't make a human arm
09:27 PM Tom_L: got a scribble?
09:28 PM katsmeow: no,,, but alum , ~6"long , thickness of the bearings, 3 holes to fit the bearings, all 8 arms have a set of 3 holes
09:29 PM katsmeow: and then 8 cross links, all identical
09:29 PM Tom_L: that's alot of parts
09:29 PM katsmeow: 6" arms should be U channel, like the stuff at hardware store for edging plywood
09:30 PM katsmeow: yeas, sorry
09:30 PM Tom_L: just thinking shipping would cost alot
09:30 PM katsmeow: should be less than $20
09:30 PM Tom_L: seems they won't ship a feather for under 15 bux anymore
09:33 PM Tom_L: what you makin?
09:34 PM katsmeow: a doohickey with some 80 bearings in it
09:42 PM katsmeow: this is a thing i made http://designerthinking.com/images/DSCF6814m.jpg
09:43 PM Tom_L: steel?
09:43 PM Tom_L: that's pretty darn good
09:43 PM katsmeow: yeas, steel
09:43 PM Tom_L: this thing doesn't like steel so much
09:44 PM katsmeow: i then drilled a 1/2 inch hole in it, so the outer holes can be seen thru with bearings installed lining that center 1/2 inch hole : http://designerthinking.com/images/DSCF6826m.jpg
09:45 PM Tom_L: confused by that vantage point
09:45 PM katsmeow: and i did this, using stainless steel bolts : http://designerthinking.com/images/DSCF6832m.jpg
09:45 PM Tom_L: oh ok i see now
09:46 PM Tom_L: those must be some small bearings
09:47 PM katsmeow: the ones in the bolt and seen lining the inside of the 1/2 inch hole in the steel hockey puck, are 1/8 ID
09:47 PM Tom_L: if that's a 1/2" hole
09:50 PM katsmeow: wiht a rule for scale : http://designerthinking.com/images/DSCF6797m.jpg
09:51 PM Tom_L: yeah
09:52 PM Tom_L: you got a working lathe now?
09:52 PM katsmeow: no, but it tries to be, no table, no crosslide
09:52 PM katsmeow: no calibrated set ways
09:53 PM katsmeow: you asking how i put the 1/8 id bearings on the ends? drill press
09:53 PM Tom_L: nice
09:58 PM katsmeow: anyhow, that hockey puck with 8 eyebolts totalling 32 ball bearings, was the easy part whenit is about repeatable accuracy over distance
10:03 PM katsmeow: <coff>
10:07 PM Tom_L: bedtime here
10:07 PM katsmeow: so 6 inch arms, hole at each end, hole at 2" from one end
10:08 PM katsmeow: then 88 arms, ~ 2 inch ling, hole at each end
10:08 PM katsmeow: errr
10:08 PM katsmeow: then 8 arms, ~ 2 inch long, hole at each end
10:08 PM Tom_L: all same material?
10:08 PM katsmeow: alum is fine for proof of concept
10:09 PM katsmeow: needs to be steel for holding any stresses tho
10:09 PM Tom_L: gotta get up early so i'm headin to bed
10:09 PM katsmeow: oh drat,, on 2" arms, need center hole too
10:09 PM katsmeow: k, gnite
10:10 PM katsmeow: i thought i had more pics, but i ran the camera memory one end to end, nothing newer on it
10:10 PM katsmeow: i could go get it and take pics, it's upstairs
10:11 PM katsmeow: someone in other channel now who has held it in his hand
10:11 PM * katsmeow looks blank
10:14 PM katsmeow: afk a few
10:20 PM katsmeow: bak
10:20 PM katsmeow: the steel is showing some rust
10:22 PM rue_bed: which steel?
10:23 PM katsmeow: on the hockypuck of holes
10:23 PM rue_bed: how the hell do I control this sleep thing
10:23 PM rue_bed: oh
10:24 PM rue_bed: I'm catching up
10:24 PM rue_bed: you making a rotary engine?
10:24 PM katsmeow: no
10:25 PM rue_bed: looks also like a heli swashplate
10:26 PM rue_bed: part of the bender?
10:26 PM * rue_bed works on waking up
10:26 PM rue_bed: arg
10:28 PM * rue_bed tries to think
10:28 PM rue_bed: arg, I need food
10:28 PM rue_bed: tommorow is monday :(
10:29 PM rue_bed: what am I supposed to do...
10:29 PM rue_bed: rue!!!!
10:29 PM katsmeow: i took a few more pics
10:29 PM rue_bed: ok, I'll get up
10:33 PM katsmeow: mogrifying them
10:33 PM katsmeow: uploading
10:34 PM katsmeow: http://designerthinking.com/images/DSCF7070m.jpg
10:34 PM katsmeow: http://designerthinking.com/images/DSCF7071m.jpg
10:34 PM katsmeow: http://designerthinking.com/images/DSCF7074m.jpg
10:34 PM rue_: oo
10:34 PM rue_: how does that work?
10:35 PM katsmeow: they just laying in there atm, as you can see in DSCF7074m.jpg , there is nothing to keep the tiny bearings from falling thru
10:35 PM katsmeow: there wasn;t enough metal left down there to allow for shoulders
10:36 PM katsmeow: so i have a press insert to go into the 1/2 center hole to bottom out the holes
10:36 PM katsmeow: oh, it's 5/8, not 1/2
10:37 PM katsmeow: the puck is slightly less than 1/2 inch, the OD of the large bearings is 3/8
10:37 PM rue_: add metal
10:37 PM rue_: your good at that
10:37 PM rue_: ok, that tiny
10:37 PM rue_: wow, cool
10:37 PM katsmeow: so there was just enough hocky puckto put 8 3/8 holes in it, and bore to the center, with 1/4 OD bearins at the center
10:38 PM rue_: which way is up, where is supper
10:38 PM rue_: its part of the bender?
10:38 PM rue_: srry, wakeup shock
10:38 PM katsmeow: no
10:38 PM katsmeow: which way is up where?
10:38 PM katsmeow: did you see the uirls i gave Tom ?
10:39 PM rue_: ok I can stop trying to work out what part of a bender that is
10:39 PM rue_: yes
10:39 PM katsmeow: k
10:39 PM rue_: wonderfully shaped
10:40 PM katsmeow: proof of concept, a real version would be 2x as large
10:41 PM katsmeow: i went small because parts are cheaper
10:41 PM katsmeow: so Tom cannot make the arms
10:42 PM katsmeow: best i can do then is some way to hold the drill bit separately from the drill press, and make jigs, and go/no-go jigs, toss those that fail
10:49 PM katsmeow: it's bee a full 12 months since i worked onit
10:50 PM katsmeow: ...
11:43 PM rue_: srry, cnc machine on the rampage
11:43 PM rue_: erp