#garfield Logs

Jun 17 2021

12:48 AM rue_mohr: canada has an apprentiship completion grant, just managed to file for it
12:55 AM rue_mohr: aandrew, and the switch stays "the line is busy, please hold"
12:55 AM rue_mohr: aandrew, rgb -> HSV?
04:12 AM Tom_L: done in what way done?
04:12 AM Tom_L: water or oil quenched?
04:12 AM Tom_L: (oil is better)
04:19 AM Tom_L: apprentiship for what/
04:19 AM Tom_L: ?
08:31 AM rue_mohr: for making bits like that
08:34 AM aandrew: rue_mohr: no his is monochrome
08:59 AM rue_mohr: 3 channel monochrome?
09:53 AM aandrew: no single channel grayscale - but feeding the signal to three ADCs and triggering them sequentially to maximize overall sampling rate
03:00 PM polprog: i just slept for 5 hours
03:00 PM polprog: the second dose is tough
03:00 PM polprog: blew two demodulators, i have one last left (and 2 more on the way)
03:01 PM polprog: I think it's what Philip says, my dodgy power supply fed the 5V input more than 5V :/
03:01 PM Tom_L: shot?
03:01 PM polprog: vaccine
07:17 PM Tom_L: https://user-images.githubusercontent.com/44880102/122229068-6e83c100-ce86-11eb-9814-1199550dd265.mp4
07:28 PM rue_mohr: ok, so
07:28 PM rue_mohr: I should be able to cast one more
07:29 PM Tom_L: got the lathe part figured out?
07:43 PM rue_mohr: no I want to do the milling first
07:45 PM Tom_L: gonna have to make a wider set of visejaws to make this work
07:46 PM rue_mohr: !!
07:46 PM rue_mohr: oh not vise
07:46 PM rue_mohr: you doing a 3 step in on jaw?
07:49 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/Visejaws.jpg
07:49 PM Tom_L: the left is the same just a little closer together
07:51 PM rue_mohr: arg, gonna doze off if I'm not carefull
07:51 PM rue_mohr: oh ye, I needed a deeper vise
07:51 PM rue_mohr: Tom_L,
07:51 PM rue_mohr: A axis
07:51 PM rue_mohr: that peice could be completely cut with a rotary axis
07:51 PM rue_mohr: well, no hole
07:53 PM rue_mohr: cmon RUe get up..
07:53 PM Tom_L: no you still have to be able to hold it
07:53 PM Tom_L: light a fire under your arse and the alum pot!!!!!
07:53 PM rue_mohr: your right I have to get changed
07:54 PM rue_mohr: frist
07:54 PM rue_mohr: I have to wake up at 5am tommorow
07:54 PM Tom_L: i'll say hello
07:54 PM Tom_L: i'll be up at 4
07:54 PM rue_mohr: not that I havn't been anyhow latley
07:54 PM rue_mohr: but I ahve to stay up
07:56 PM Tom_L: err no that would be 2 your time
07:57 PM rue_mohr: ok, play pants on
07:58 PM rue_mohr: ok
07:58 PM Tom_L: i was kinda surprised i still had that sherline vise set
10:07 PM Tom_L: getting closer: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/Visejaws.jpg
10:07 PM Tom_L: P1 P2 P3
10:07 PM Tom_L: start off like A3 with a rectangular block
10:08 PM Tom_L: how'd the pour go?
10:08 PM * Tom_L bets rue_mohr fell asleep
10:27 PM rue_mohr: no I got it
10:47 PM rue_mohr: Tom_L, you here?
10:49 PM Tom_L: i am
10:52 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1200038.jpg
10:53 PM Tom_L: top one is last?
10:53 PM rue_mohr: actually far left
10:53 PM Tom_L: look pretty good
10:53 PM rue_mohr: I think they will do
10:54 PM rue_mohr: its quite a bit of metal
10:54 PM rue_mohr: about half of each batch I melted down
10:54 PM Tom_L: 20% infill :)
10:54 PM rue_mohr: hah
10:54 PM rue_mohr: I tried a trick from that really old book
10:55 PM rue_mohr: I put pins in the sand in the middle
10:55 PM rue_mohr: worked fine
10:55 PM rue_mohr: those 90 edges still gave me grief tho
10:55 PM Tom_L: well now you got some castings to machine
10:56 PM rue_mohr: yea
10:56 PM rue_mohr: slight hangup with the milling machine
10:56 PM rue_mohr: the guys place its at had his kids move in and fill the garage
10:56 PM rue_mohr: not a permantnt issue, but might be a holdup
10:57 PM Tom_L: just for the base?
10:57 PM Tom_L: and maybe ends
10:57 PM rue_mohr: top and bottom of the base
10:57 PM Tom_L: bring em by..
10:57 PM rue_mohr: heh
10:59 PM Tom_L: i may get a keyslot cutter just to try
10:59 PM Tom_L: would make it 2 positions instead of 4
11:00 PM Tom_L: eyes won't focus
11:00 PM Tom_L: been staring at the cad too long
11:05 PM rue_mohr: :)
11:06 PM Tom_L: can have it for pickup tues
11:06 PM rue_mohr: I have this feeling that if I were young I'd be just building this out of whatever and it would be running somehow
11:10 PM Tom_L: hhe
11:11 PM Tom_L: but you wouldn't learn how to cast parts
11:11 PM Tom_L: what are the bearings actually for?
11:11 PM Tom_L: i don't quite follow what you're doing
11:18 PM rue_mohr: there is a shaft across the width of the machine
11:18 PM rue_mohr: two chains to drive the x axis
11:18 PM Tom_L: oh
11:18 PM rue_mohr: I'd like rack, but
11:18 PM rue_mohr: not at those prices
11:19 PM rue_mohr: I was pondering leadscrew drive to have it cut some racks
11:19 PM rue_mohr: I think its easy to stall from setting bars too high
11:19 PM Tom_L: what were you asking about drill rod for?
11:19 PM rue_mohr: it'll be true feedback
11:20 PM rue_mohr: so it should be ok with a bit of non-linearity
11:20 PM rue_mohr: for you making a cutter
11:20 PM rue_mohr: it would be a project
11:20 PM Tom_L: nothing to grind it with accurately
11:27 PM rue_mohr: what does a descent grinder look like?
11:28 PM Tom_L: special wheels
11:28 PM rue_mohr: diamond disc?
11:28 PM Tom_L: cupped
11:28 PM Tom_L: yes depending on what you're cutting
11:29 PM rue_mohr: why cupped?
11:29 PM Tom_L: for cutter relief access
11:29 PM rue_mohr: oh
11:31 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/cutters/Carbide_rougher4.jpg
11:31 PM Tom_L: how else could you cut that
11:32 PM rue_mohr: edm?
11:33 PM Tom_L: cnc grinder :)