#garfield Logs

Jun 21 2021

12:42 AM spline: B100D
12:49 AM rue_mohr: ?
12:49 AM spline: I liked the address
12:49 AM spline: made me laugh
03:56 AM polprog: whats that little contraption on that ft233 board rue?
03:56 AM polprog: Also i just realized I have two of these light controller boards from china everyone was hacking
03:56 AM polprog: they have some neat FPGA in them
03:58 AM Tom_L: hi
04:08 AM polprog: hey
08:20 AM rue_mohr: cool
08:20 AM rue_mohr: the thing is just a 3.3V regulator
08:21 AM rue_mohr: the onboard one it fragile
07:29 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_setup_blocks.jpg
07:29 PM Tom_L: blocks cut and ready to go
07:38 PM rue_mohr: hah, yer doing a run!
07:39 PM Tom_L: gotta at least test the program out
07:40 PM Tom_L: takes a bit longer to make the blocks but i think it's safer than cutting them from a plate
07:40 PM Tom_L: the run time should be a bit less
07:42 PM Tom_L: hopefully i'll get that cutter tomorrow
08:10 PM rue_mohr: yay I have the HDMI cable for the beaglebone
08:11 PM Tom_L: oh?
08:11 PM Tom_L: what were you doing with the beaglebone?
08:11 PM Tom_L: i never got one of those
08:11 PM Tom_L: rpi4
08:11 PM rue_mohr: it was gift, I'm not sure yet
08:11 PM Tom_L: i'm getting screw holders for the drill chucks too instead of that drawbar thing
08:12 PM rue_mohr: k
08:13 PM rue_mohr: too bad those wouldn't mill ok
08:13 PM Tom_L: tried making some but never could get the runout good enough
08:13 PM Tom_L: one is fair, i'll keep it as a backup
08:13 PM Tom_L: or if i need a 3rd drill
08:14 PM Tom_L: i've never been so happy with the spindle motor though
08:14 PM Tom_L: doesn't bog down at all now
08:14 PM rue_mohr: :)
08:14 PM Tom_L: the mill itself is the weak point now
08:16 PM rue_mohr: it was 1 HP?
08:16 PM Tom_L: 1.2kw so 1.5 hp?
08:17 PM Tom_L: not sure how the math works on that
08:17 PM rue_mohr: zippo:/files/programming/asm/z80/A-3# units 1.2kW hp
08:17 PM rue_mohr: * 1.6092265
08:17 PM Tom_L: doesn't even get warm now
08:17 PM Tom_L: the sherline would have been too hot to touch
08:18 PM rue_mohr: idle loss
08:19 PM rue_mohr: hah, if I wear out the motor on that one I'm using I might need to buy it
08:19 PM Tom_L: i got 2
08:19 PM rue_mohr: do you have spare sherline belts for it?
08:19 PM Tom_L: no sherline
08:19 PM Tom_L: i burnt em all up
08:19 PM rue_mohr: hah
08:19 PM rue_mohr: the one on this machine is getting old!
08:19 PM Tom_L: went to timing belts and never looked back
08:20 PM rue_mohr: do you know an equiv belt supplier for the sherline one?
08:20 PM Tom_L: i make them work
08:20 PM Tom_L: sewing machine
08:20 PM rue_mohr: hmm
08:20 PM Tom_L: i used to get them at a sewing machine place
08:20 PM Tom_L: there should be a number on it
08:21 PM rue_mohr: ifits seqing I know 2 places I can ask
08:21 PM Tom_L: https://www.sewingpartsonline.com/sewing-machine-belts.aspx?index=1
08:21 PM Tom_L: get the length
08:21 PM Tom_L: most of those tan? yellowish are the same series
08:22 PM Tom_L: i can go see if the number is still on my old one
08:22 PM rue_mohr: its yellow
08:22 PM Tom_L: if i still have it
08:22 PM Tom_L: it might not be the same though because i made a pulley to change the ratio back then
08:23 PM rue_mohr: this has a 3 step pulley
08:23 PM Tom_L: i'll run out and look
08:24 PM rue_shop3: hah I was going to measure the belt, but the machine is running, so I'd only get a few ms as it goes around
08:25 PM rue_shop3: oh, and now its a 2 step pulley
08:25 PM rue_shop3: apparently I'v been universe hopping again
08:31 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/sherline_belt/sherline_belt1.jpg
08:31 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/sherline_belt/sherline_belt2.jpg
08:31 PM Tom_L: those are different sizes one is new and one is good
08:32 PM Tom_L: the 1100 is probably mm length
08:32 PM Tom_L: it's likely the stock one
08:33 PM Tom_L: is that tiny pulley the stock motor pulley?
08:33 PM Tom_L: i think the one next to it is the one i made
08:33 PM Tom_L: and the big one fits the spindle
08:33 PM Tom_L: but i'd have to measure em
08:34 PM Tom_L: err no both the left & right are spindle
08:34 PM Tom_L: the big one is stock so that big belt should be the stock belt
08:34 PM Tom_L: the MB330
08:35 PM Tom_L: https://www.amazon.com/HONEYSEW-Neoprene-Sewing-Machine-MB-330/dp/B073HX2BYL
08:35 PM Tom_L: count the teeth if nothing else
08:36 PM rue_mohr: yea I can get some info after its finished the cycle
08:36 PM rue_mohr: I dont think I have any numbers left on the belt
08:36 PM Tom_L: no but that's the right series i'm pretty sure
08:36 PM Tom_L: both the belts i have are the same profile
08:36 PM Tom_L: one is shorter for that small pulley i made
08:36 PM rue_mohr: they look good
08:36 PM Tom_L: wanted more rpm
08:42 PM rue_mohr: I'm not sure on whats on there
08:42 PM rue_mohr: and I think you had the 'other' model
08:42 PM Tom_L: one of those 2 i'm sure
08:42 PM Tom_L: yes
08:42 PM Tom_L: that should be the same though
08:42 PM rue_mohr: yep, I'll measure things when its done
08:42 PM rue_mohr: about half an hour
08:42 PM rue_mohr: cool
08:42 PM Tom_L: i bet yours is the MB330
08:42 PM rue_mohr: hah, it looks like I can count the teeth!
08:42 PM Tom_L: yep
08:42 PM Tom_L: https://www.amazon.ca/HONEYSEW-Neoprene-Sewing-Machine-MB-330/dp/B073HX2BYL
08:42 PM Tom_L: canada link
08:44 PM Tom_L: oh, scroll over that grid of belts to the 82 tooth one
08:44 PM Tom_L: same price
08:46 PM Tom_L: dunno where theyre at
08:47 PM rue_mohr: cool!
08:47 PM rue_mohr: I tried the auto store once and they were really confused
08:47 PM rue_mohr: they dont really do fractional horsepower
08:48 PM Tom_L: 25 to ship :(
08:49 PM rue_mohr: "Currently unavailable.
08:49 PM rue_mohr: We don't know when or if this item will be back in stock. "
08:50 PM Tom_L: lots of places have those
08:50 PM Tom_L: check ali
08:50 PM rue_mohr: yea, now I have a lead
08:50 PM rue_mohr: ok, so two of the things on my todo list depend on the 3d print that failed last night
09:05 PM rue_shop3: ok so
09:12 PM Tom_L: you know... i got the timing pulleys i took off when i swapped motors
09:13 PM Tom_L: those would fit right on your setup
09:13 PM Tom_L: the belt was smaller
09:13 PM Tom_L: i wanted a wider belt for this bigger motor
09:13 PM Tom_L: then you'd never need a belt
09:14 PM Tom_L: the belt is used but good and i'm not sure but i might have a spare
09:14 PM Tom_L: i'd have to look
09:15 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/new_pulleys/new_pulley_mounted2.jpg
09:15 PM Tom_L: those
09:15 PM rue_shop3: its not mine
09:15 PM rue_shop3: its on loan
09:15 PM Tom_L: but you can swap them back
09:15 PM rue_shop3: I'm trying to not go crazy with it :)
09:15 PM rue_shop3: no problems with slip yet tho
09:16 PM Tom_L: ok
09:16 PM Tom_L: i just happened to think of that
09:16 PM rue_shop3: :)
09:16 PM rue_shop3: I have another machine in the queue too
09:16 PM rue_shop3: a fill-in for the sherline if its recalled
09:17 PM rue_mohr: I'm a bit edgy about relying on it tooo much
09:17 PM rue_mohr: the owner doesn't ahve space right now for ie
09:17 PM rue_mohr: it
09:18 PM Tom_L: there's some guy in the states that can cut parts in a pinch
09:18 PM rue_shop3: :)
09:18 PM rue_shop3: he has a much better machine too
09:18 PM rue_shop3: cut a few heads at once
09:19 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/new_pulleys/old_pulley1.jpg
09:19 PM Tom_L: yeah, see that's how i had it set up before
09:20 PM Tom_L: look at the back side of the belt... that one is about ready to go too
09:20 PM rue_shop3: I thought that guagrd held the motor
09:20 PM rue_shop3: hmm
09:20 PM Tom_L: no
09:21 PM Tom_L: 2 little phillips and that opens up so you can get to the allen heads
09:22 PM rue_shop3: heh, I have 3 drawers crammed with stm32s
09:22 PM rue_shop3: I'd say I correctly predicated the end of the world on that one
09:22 PM Tom_L: heh
09:54 PM rue_shop3: ok I almost have enough bench space cleared to test a battery
10:15 PM Tom_L: i forgot what that latch did
10:30 PM rue_shop3: yes! I can just make it out!
10:30 PM rue_shop3: MB 330
10:32 PM Tom_L: awesome
10:32 PM rue_shop3: I just restarted it, I wasn't going to measure anything else was I?
10:33 PM Tom_L: not that i'm aware of
10:33 PM Tom_L: you know what belt you need
10:36 PM rue_shop3: oh welder timer
10:36 PM rue_shop3: well now I know its a sewing machine belt
10:37 PM Tom_L: i used to use those alot on my model boat when i was racing them
10:37 PM Tom_L: alot longer but the same belt style
10:38 PM rue_shop3: hah you did rc boat racing!?
10:39 PM Tom_L: yeah
10:39 PM rue_shop3: cool
10:39 PM Tom_L: for a while
10:39 PM rue_shop3: I have a tiny engine from my dads stuff when he was a kid
10:39 PM rue_shop3: but the crankshaft is bent
10:39 PM Tom_L: odd i have no pics of them that i know of
10:39 PM rue_shop3: its a outboard boat engine
10:40 PM Tom_L: kindof an expensive hobby
10:40 PM rue_shop3: alternate spelling of boat is $$$$
10:40 PM rue_shop3: the plural is $$$$$
10:41 PM Tom_L: https://www.ebay.com/itm/255020580841?hash=item3b60693fe9:g:NV8AAOSwi8Zgy64a
10:41 PM Tom_L: like that?
10:41 PM Tom_L: that's what most of the outboard guys used
10:42 PM Tom_L: that or the smaller one
10:42 PM rue_shop3: smaller, but yea
10:45 PM Tom_L: https://www.picclickimg.com/d/l400/pict/203206549469_/EXCELLENT-OLDER-ITALIAN-OPS-67-RIRE-R-C-NITRO.jpg
10:45 PM Tom_L: i had a handfull of those
10:48 PM rue_shop3: hmm no its an outboard
10:48 PM rue_shop3: I'll see if I can find it for a pic
10:53 PM Tom_L: that first one was an outboard
10:53 PM Tom_L: the 2nd one was the type i had
10:54 PM Tom_L: just about all the outboard guys used K&B
10:56 PM Tom_L: https://www.amazon.com/BQLZR-Copper-Propeller-Diameter-Pitch1-4MM/dp/B01MPY8WQV
10:56 PM Tom_L: i had a bunch of those copper propellers i'd cut and balanced for different uses
10:56 PM Tom_L: polished etc
10:58 PM rue_shop3: :)
10:59 PM Tom_L: ported the engine, special tuned pipe etc
10:59 PM rue_shop3: hahah
10:59 PM Tom_L: probably put out a good 20hp
10:59 PM rue_shop3: coool
10:59 PM rue_shop3: (too much time tho eh?)
11:00 PM Tom_L: for a .67cc engine that's quite a bit
11:00 PM rue_shop3: did you do races with them?
11:00 PM Tom_L: yes
11:00 PM Tom_L: that's what i did
11:00 PM Tom_L: got a box of trophies in the attic somewhere
11:00 PM rue_shop3: hahah yooz collects them all!
11:01 PM Tom_L: a few
11:01 PM rue_shop3: so this spot welder
11:01 PM rue_shop3: I need a button that does 1 20ms pulse nomatter how bad you screw up pressing it
11:02 PM Tom_L: that's pretty short for a button
11:03 PM Tom_L: needs to basically trip on it's own
11:03 PM Tom_L: and or be digitally filtered
11:04 PM rue_shop2: I'm thinking a dpdt debounce, and two monostables
11:04 PM rue_shop2: one as a lockout for about 1 second, and one to do the pulse
11:04 PM Tom_L: oh for the battery tab welder
11:04 PM rue_shop2: yup
11:05 PM rue_shop2: I got an SSR and will try it with 120AC
11:05 PM rue_shop2: not expecting lots
11:05 PM rue_shop2: but I need to bring down the bar, I'm failing
11:07 PM Tom_L: gnite
11:16 PM rue_shop3: gnight