#garfield Logs

Feb 25 2022

04:49 AM Tom_L: morning
07:46 AM rue_bed: morning
07:46 AM rue_bed: cats got me a few times
07:46 AM rue_bed: garbage day today
07:55 AM Tom_L: :)
08:10 AM Tom_L: i may run a few more before i change setups to test the A12
10:30 AM rue_mohr: I got one more made yesterday!
10:31 AM rue_mohr: and both new bushings printed for my cnc
10:31 AM rue_mohr: they are too tight, I need to hit them with a heatgun a bit
02:29 PM Tom_L: at least they won't be flopping around
04:06 PM miss0r: rue_mohr: I wasn't around in my morning. :)
04:07 PM miss0r: I just replicated the setup from my PCB on a breadboard. Still using thick gauge wire for all the power circuitry mounted on a heatsink externally to the PCB. and it works flawlessly. Theres some ghost haunting on my PCB
04:08 PM miss0r: The only measurement I am not completely proud of is the negative spikes and ringing on the CS wire going to the arduino. But the arduino doesn't seem to care
10:15 PM rue_mohr: wait
10:15 PM rue_mohr: is it not working when you try to use an arduino to run it?
10:35 PM Tom_L: rue_mohr,
10:35 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A9_New/MODS/A9_A10_final_batch.jpg
10:40 PM rue_mohr: whea
10:40 PM rue_mohr: whoa
10:57 PM Tom_L: wanted to finish the loose material i had before i took the setup off
10:57 PM rue_mohr: that looks awesome
10:58 PM Tom_L: i mostly fixed that gouge in the slot on entry
10:58 PM rue_mohr: I'm gonna rest a bit
10:58 PM rue_mohr: I'll probably be up at 11, so I'll just stay up
10:58 PM Tom_L: i'll set up the latch tomorrow
10:58 PM rue_mohr: its the weekend*
10:58 PM Tom_L: i gotta cut all the material for it
10:58 PM rue_mohr: what size blanks?
10:59 PM Tom_L: hang on
10:59 PM rue_mohr: we were just cutting them out of a large block
10:59 PM rue_mohr: choose the next zero and run the cycle
10:59 PM Tom_L: .5 x 1.5 x .3125
10:59 PM rue_mohr: oh my
11:00 PM Tom_L: it lets me run both sides to finish
11:00 PM rue_mohr: hmm
11:00 PM Tom_L: takes longer but i think they look nicer
11:00 PM rue_mohr: hmm
11:00 PM rue_mohr: if I'z sharp I'd make a jig to slot them with the table saw
11:01 PM rue_mohr: do like 8 at a time
11:03 PM Tom_L: i'm wondering if i can cut the materal on the table saw
11:03 PM Tom_L: it's a radial arm though
11:06 PM Tom_L: i don't want it to get away from me
11:07 PM Tom_L: but since i couldn't find small strips of 5/16 material i have to cut it from a sheet
11:07 PM rue_mohr: the chips come off HOT
11:07 PM rue_mohr: if its a carbide blade, fed nice, it'd be ok
11:08 PM Tom_L: i know, i cut some of those 2" steel tubes on it
11:08 PM rue_mohr: steel!?
11:08 PM Tom_L: that didn't go all that well either
11:08 PM rue_mohr: rpms a bit high!?
11:08 PM Tom_L: yeah i was better of cutting it with the angle grinder
11:08 PM rue_mohr: hmm
11:08 PM Tom_L: i had a diamond blade on the saw but it didn't work that well on steel
11:08 PM rue_mohr: damn too far apart, I could make the strips
11:09 PM * rue_mohr grumbles 'barstock'
11:09 PM Tom_L: i _could_ take it out to my buds and use his bandsaw
11:09 PM Tom_L: but i kinda hate to bother him
11:09 PM rue_mohr: bandsaw takes quite a while too
11:09 PM Tom_L: better than a jig saw
11:10 PM rue_mohr: yes..
11:10 PM Tom_L: that's all i got
11:10 PM rue_mohr: hmm
11:10 PM Tom_L: that or a hacksaw
11:10 PM rue_mohr: what the size of material you got?
11:10 PM Tom_L: i'm not sure but it's like 6" wide
11:10 PM Tom_L: and long
11:10 PM Tom_L: 5/16 thick
11:10 PM rue_mohr: ok, so the whole thing would fit in your machine?
11:11 PM Tom_L: i can cut it with an endmill but it wastes alot
11:11 PM Tom_L: and a .125 would just break
11:11 PM rue_mohr: yes, but what if you do the job a bit different
11:11 PM rue_mohr: you machine supports new-zero-and-run-cycle right?
11:11 PM rue_mohr: what if you mapped out zeros for a bunch of parts
11:12 PM rue_mohr: you have them complety cut out for the second pass anyhow dont you?
11:12 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_P1_1.jpg
11:12 PM rue_mohr: yea
11:12 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_P2_1.jpg
11:12 PM rue_mohr: so you can precut them all out of the sheet?
11:12 PM Tom_L: that's how i do it now
11:12 PM rue_mohr: oh
11:13 PM Tom_L: and yes i have to cut the small blanks to size
11:13 PM Tom_L: that size you see in pic 2
11:13 PM rue_mohr: what if you use that first image jig for the operation in the second image?
11:13 PM Tom_L: i don't follow you
11:13 PM rue_mohr: if you profile them to foil
11:14 PM rue_mohr: then use the shaped jig to hold them and do pass 2
11:14 PM Tom_L: that doesn't work so well for me
11:14 PM rue_mohr: ?
11:14 PM rue_mohr: they could be sloppy knocked out of the foil ...
11:14 PM rue_mohr: ?
11:14 PM Tom_L: i know what you're saying but i'm trying to get away from doing it that way
11:14 PM rue_mohr: ok
11:15 PM Tom_L: it never comes out even
11:15 PM Tom_L: the foil may be thin on one side or the other
11:15 PM rue_mohr: hmm, what if I send you a bunch of blanks?
11:15 PM Tom_L: naw, too much postage
11:16 PM Tom_L: i'll work thru it
11:16 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_P2_2.jpg
11:16 PM rue_mohr: hmm
11:16 PM Tom_L: see doing it like that i can finish the part
11:16 PM Tom_L: chamfered holes etc
11:17 PM rue_mohr: your machine ran about $1500 less the new motor and vfd didn't it?
11:17 PM Tom_L: i mainly need to make sure the slot is right now
11:17 PM Tom_L: probably about that
11:17 PM Tom_L: i didn't keep track
11:17 PM rue_mohr: hmm
11:17 PM Tom_L: the rail kit was ~350
11:18 PM Tom_L: ballscrews & rail
11:18 PM Tom_L: i upgraded the steppers
11:18 PM Tom_L: that was 99
11:18 PM rue_mohr: ---- 450
11:18 PM Tom_L: the material was minimal because it was all scrap
11:18 PM rue_mohr: oh I dont even have room anyhow
11:19 PM Tom_L: oh sure you do
11:19 PM Tom_L: you just might have to rearrange the furniture a bit
11:19 PM rue_mohr: heh, pull a rifraf
11:19 PM Tom_L: one of the best things i ever did
11:19 PM rue_mohr: yea
11:20 PM Tom_L: i built the control and put it on the sherline knowing i would build it some day
11:20 PM Tom_L: made it big enough to handle upgrades
11:20 PM rue_mohr: I have a big box of cnc machine parts
11:21 PM Tom_L: those are 80v 7A drivers
11:21 PM rue_mohr: I think that sherline is wearing out
11:21 PM Tom_L: but i'm not running them that hard
11:21 PM rue_mohr: I'm gonna try to adjust the shims again
11:21 PM Tom_L: the sherline was worn out when you got it
11:21 PM Tom_L: so was mine :)
11:21 PM rue_mohr: not too shure, it didn't have as much play as it does now
11:21 PM rue_mohr: plastic shims...
11:21 PM Tom_L: i never could hold any sort of tolerance on it
11:22 PM rue_mohr: er, the shiv
11:22 PM rue_mohr: cast, not even a good quality one either
11:22 PM Tom_L: but i suppose i always thought bigger than it could handle
11:22 PM rue_mohr: I made the new slides for the cnc I built, It'll take some effort to install them
11:23 PM Tom_L: if i was on top of the tool changes i ran some at 11 min 30 sec
11:23 PM Tom_L: average was probably 12 min
11:23 PM rue_mohr: the size is slighty out so I need to heat them up and set them a bit
11:23 PM rue_mohr: showoff :)
11:23 PM rue_mohr: I got the cycle down to about an hour!
11:23 PM Tom_L: spindle time costs money
11:23 PM Tom_L: keep it low
11:23 PM rue_mohr: heh
11:24 PM Tom_L: the soap helped you alot
11:24 PM rue_mohr: its kinda relative
11:24 PM rue_mohr: yes, I need to set up the auto coolant puffer
11:24 PM Tom_L: to give you an idea, i went thru about 1/2 gal of coolant on all those
11:25 PM Tom_L: i don't bother trying to capture it all from the chips etc
11:25 PM Tom_L: i get what i can easily and let the rest go
11:25 PM Tom_L: i did hit the edges with sandpaper and did the holes a bit but you may want to run these thru your tumbler a bit
11:29 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/cutters/Slitting_saw1.jpg
11:29 PM Tom_L: i wish i could get those to work decent
11:30 PM Tom_L: i could cut the material with them
11:30 PM Tom_L: but they don't work so well
11:35 PM rue_mohr: 90 degrees out
11:36 PM rue_mohr: just dont get hurt working on something like this project
11:36 PM rue_mohr: !!
11:38 PM Tom_L: i have no such plans
11:39 PM Tom_L: if those would work i could stand the material up in the vise but they cut way too slow
11:44 PM Tom_L: i tried using them when i had the sherline spindle motor and it wouldn't handle them at all
11:48 PM rue_mohr: remmeber that platic shaft coupler thing that had the wavy shape?
11:48 PM Tom_L: tiny part?
11:48 PM Tom_L: yes
11:48 PM rue_mohr: he's never said it failed, I think its still good
11:48 PM rue_mohr: (I'm going thru old pics)
11:48 PM Tom_L: hah
11:48 PM Tom_L: we gave him 2
11:49 PM rue_mohr: oh yea there was a spare
11:50 PM rue_mohr: huh in 2020 I changed the tea machine element
11:50 PM Tom_L: i planned on sending you some copper when i ship these if you want it
11:50 PM Tom_L: just don't want shipping to get too crazy
11:51 PM rue_mohr: hah
11:51 PM rue_mohr: I wonder how the plan works, I remmeber it used to basically have a step
11:52 PM Tom_L: i'll never use it and somebody may as well get some good from it
11:52 PM rue_mohr: I want to come over and pick it up
11:53 PM rue_mohr: :)
11:54 PM rue_mohr: I only built the tea maker in 2019!?
11:54 PM Tom_L: gas has gone up $.60 or so since ... russia
11:55 PM Tom_L: was 2.89 now it's 3.49
11:57 PM rue_mohr: do you think I could sand cast a big set of triggers?
11:57 PM rue_mohr: oh their just using it as an excuse
11:58 PM rue_mohr: your still 1/3 the cost it is here
11:58 PM rue_mohr: $1.70/L
11:58 PM Tom_L: they're getting kicked out of the global trade market and are pissed off
11:59 PM Tom_L: they're trying to start WW3
11:59 PM rue_mohr: they might succeed
11:59 PM Tom_L: china would follow
11:59 PM Tom_L: they want tiawan