#garfield Logs

Jun 19 2021

01:40 AM rue_shop3: I'll get it all sorted yet
01:51 AM rue_mohr: the jukebox repair is being especially hard cause an installer overwrote some stuff when I told it to install over the old main partition
01:51 AM rue_mohr: I stopped it, but it'd already done some damage
03:44 AM rue_shop2: shop jukebox working again
03:44 AM rue_shop2: its a bit upset, but running
04:07 AM Tom_L: morning
04:10 AM Tom_L: seems you're working on that every few months
04:16 AM rue_shop3: no it took me that long to get to fixing it
04:17 AM rue_shop3: lots of things I can only do if I have about 4 hours clear
04:17 AM Tom_L: heh
04:17 AM rue_shop3: and I only get that friday night and the weekend
04:17 AM Tom_L: i know that feeling
04:17 AM rue_shop3: by the end of the weekend I know all the little thigns I want me to work on during the week
04:17 AM rue_shop3: so I make up a list
04:18 AM Tom_L: finally got this fixture/part programmed
04:18 AM rue_shop3: list casting the blocks
04:18 AM rue_shop3: 3 stages eh?
04:18 AM Tom_L: 2
04:19 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_Position1.jpg
04:19 AM Tom_L: the yellow line will cut the slot
04:36 AM rue_shop2: huh
06:29 AM polprog: :)
06:29 AM polprog: .log
06:30 AM polprog: I've been looking at the disassebmly of the thin client bios to understand it better
06:30 AM polprog: it's starting to make a picture
07:06 AM rue_mohr: what do you see?
11:22 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_Visejaws1.jpg
11:22 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_Visejaws2.jpg
11:22 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_Visejaws3.jpg
01:04 PM polprog: rue_mohr: ims tarting to see where it start to load the OS, but im afraid that all the dc ds es stuff will be convoluted too much (it uses real mode)
01:04 PM polprog: but for example I found a function that sole purpose is to set cs to 1000h
01:04 PM polprog: im atking notes
01:04 PM polprog: taking*
01:05 PM polprog: in an unrelated note, drew a filter for the feedback in my pierce oscillator
01:05 PM polprog: so that only the 100mhz harmonic gets thru to the gate of the jfet
01:34 PM rue_bed: morning
01:34 PM rue_bed: so, I was digging,
01:35 PM rue_bed: I have a few xcs05 fpgas
01:35 PM rue_bed: most of them are bga tho
01:35 PM rue_bed: I think I'd need to make a breakout board
01:35 PM rue_bed: tho I suppose I could go dead bug
01:35 PM rue_bed: hmmmm
01:36 PM rue_bed: need to find a good cpld project
01:38 PM rue_bed: maybe something to do with stepping motors on the old old cnc
01:38 PM rue_bed: rewrite the parallel port driver
01:38 PM rue_bed: since I did find the source
01:39 PM rue_bed: it would reduce it to 1 parallel port, but wouldn't really speed it up I suppose
01:39 PM rue_bed: already driving the port as fast as it goes
01:40 PM rue_bed: well, as fast as the rest of the machine can cough up directions anyhow
01:41 PM rue_bed: probably best if I just keep working it towards grbl
01:42 PM rue_bed: I wonder if I can write a program to translate my old nc files to proper gcode
01:43 PM rue_bed: haha, I'm sitting at an empty breakfast table talking to myself
02:04 PM rue_shop2: so, I got a hard drive controller to respond to jtag yesterday
02:49 PM Tom_L: what did it say?
02:56 PM rue_mohr: it said hi
02:57 PM rue_mohr: which is awesome
03:04 PM Tom_L: i thought you did that before once
03:12 PM rue_mohr: I didn't get an answer via jtag from a hard drive
03:13 PM rue_mohr: http://www.excesssolutions.com/cgi-bin/category.cgi?&category=19000&start=70
03:13 PM rue_mohr: OMG
03:13 PM rue_mohr: synchro belt
03:13 PM rue_mohr: wait how big
03:13 PM rue_mohr: oh its tiny
03:13 PM rue_mohr: drat
03:22 PM Tom_L: you got parts hunted down for the big cnc?
03:35 PM rue_mohr: kinda working it out as I go
03:36 PM Tom_L: kinda excited to try that woodruff cutter..
03:36 PM Tom_L: something new to try i haven't done yet
03:36 PM rue_mohr: have you done anyting with a saw/cutter like that
03:36 PM rue_mohr: ?
03:36 PM rue_mohr: with this machine
03:37 PM Tom_L: not with this one
03:37 PM Tom_L: did some on stainless on a big one
03:37 PM Tom_L: cutting some slots in the end of a bar
03:37 PM polprog: rue_mohr: ohh nice
03:37 PM polprog: what controller?
03:37 PM Tom_L: i tried but at the time it had the sherline motor and it wasn' strong enough
03:38 PM polprog: Iirc i got stuck on no support for that particular ferroceon core
03:38 PM polprog: :?
03:38 PM polprog: :/
03:38 PM rue_mohr: polprog, "88i6540"
03:38 PM polprog: ah, does not ring a bell
03:38 PM polprog: But i do have some Samsung board that ive been pulling
03:38 PM rue_mohr: it looks like all those chips use the same jtag ID
03:38 PM polprog: ahno, i pulled the inductors from the DCDC, so cant run it yet
03:39 PM polprog: s/yet//
03:39 PM rue_mohr: boost up not down
03:39 PM rue_mohr: :)
03:39 PM Tom_L: they probably would if they're the same chip
03:39 PM polprog: yes, i know
03:39 PM polprog: For now i will run that tuner from the lab PSU
03:39 PM rue_mohr: Tom_L, all the 'M' 88i---- chips have the same jtag ID
03:39 PM rue_mohr: which is odd
03:39 PM polprog: It's lucky because this particular model runs the preamps from 5V, other tuners I have need 5, 12 and 33
03:39 PM rue_mohr: it matches the code for two other chips people talked about online
03:40 PM polprog: sloppy
03:40 PM rue_mohr: and I got another SOP48 flash chip to talk to the programmer
03:41 PM rue_mohr: I should have tested with a read and not an erase...
03:41 PM rue_mohr: suppose I'll try again later
03:41 PM polprog: lol
03:41 PM polprog: I have to rumma through the scrap board
03:41 PM polprog: s*
03:41 PM rue_mohr: for boost parts?
03:41 PM polprog: yes
03:41 PM polprog: I dont find many of the,m
03:41 PM rue_mohr: use a 555 and a multiplir
03:41 PM rue_mohr: likea ladder multiplier
03:42 PM rue_mohr: off the 12V
03:42 PM polprog: most stuff takes 12V in and makes 5, 3.3, 1.5, 1.2
03:42 PM polprog: hmm. That's a solution
03:42 PM rue_mohr: your 555 can run off the 5V and use pin 7 to drive the multipler
03:42 PM rue_mohr: silly, but I'm just sayin
03:42 PM polprog: id rather use a converter so i can get 33V and control it
03:42 PM rue_mohr: you can regulate with the 555
03:42 PM polprog: right
03:43 PM rue_mohr: just a charge pump multiper
03:43 PM rue_mohr: do you have a 33V zener?
03:43 PM polprog: no
03:43 PM rue_mohr: I suppose you could also just clamp it.... tiny amount of power
03:43 PM polprog: i want to wind a suitable transformer
03:44 PM rue_mohr: heh
03:44 PM rue_mohr: but a charge pump should do it
03:44 PM rue_mohr: what did that guy say, like 1ma?
03:44 PM rue_mohr: intermittently?
03:44 PM polprog: Yeah
03:44 PM polprog: yeah. when it retunes
03:44 PM rue_mohr: I'd try a charge pump via 555
03:44 PM polprog: ill try that
03:44 PM polprog: bbl
03:54 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1200043.jpg
03:55 PM rue_mohr: tho I think you get more if the first diode goes to +12 and not ground
05:30 PM rue_shop3: the box requires a new trick... that I can try next time
05:33 PM Tom_L: ?
05:53 PM rue_mohr: I need to pack the inside, then bump it free before filling the rest of the mold
05:53 PM rue_mohr: I had a fight with it, I'll see how it comes out
05:54 PM Tom_L: what part are you molding this time?
05:54 PM rue_mohr: :) the box!
05:54 PM Tom_L: oh cool
05:54 PM rue_mohr: seeing as I cant think of any cpld projects ;)
05:54 PM Tom_L: i think we should lessen the angle on the walls to 3 deg though
05:54 PM Tom_L: can't really help ya with that
05:55 PM rue_mohr: so
05:55 PM Tom_L: can't do much here so i was gonna go cut more vise jaws for spares
05:55 PM rue_mohr: when the 3d printer generates it, the sides of the walls are kinda corrigated
05:55 PM Tom_L: maybe
05:55 PM rue_mohr: I sat down and filled them with wax for this casting
05:55 PM rue_mohr: but it still didn't want to let go of the inside
05:56 PM Tom_L: are the walls as angled as they look in the model?
05:56 PM rue_mohr: yes :)
05:56 PM Tom_L: i don't think they need to be that much
05:56 PM Tom_L: wonder what would happen if you vibrated it with something to release it
05:56 PM rue_mohr: the sides were trying to tear out on me
05:56 PM rue_mohr: hmm,
05:57 PM Tom_L: not sure what
05:57 PM Tom_L: but it might help
06:01 PM Tom_L: actually i don't think i will since i have that part already set up
06:27 PM Tom_L: oh
06:27 PM Tom_L: rue_mohr, does A12 need a radius'd edge?
06:27 PM Tom_L: probably not
06:40 PM rue_mohr: a bit would be nice, but its ok
06:41 PM Tom_L: i could add it
06:41 PM rue_mohr: give it a shot
06:41 PM Tom_L: that one may be my smallest radius cutter though
06:42 PM Tom_L: maybe a chamfer instead?
06:42 PM rue_mohr: sure
06:42 PM Tom_L: just touch the edge a bit maybe
06:43 PM Tom_L: do you tumble them when he machines em?
06:43 PM rue_mohr: the partner hasn't been working with me to run the parts thru the vibration finisher
06:43 PM rue_mohr: I'm a bit worried someone is going to catch an edge
06:43 PM Tom_L: that's really all that one needs
06:44 PM rue_mohr: it doesn't look like it does much, but the edges aren't shart
06:44 PM rue_mohr: p
06:44 PM Tom_L: no shit
06:44 PM Tom_L: i'm well aware of that
06:44 PM rue_mohr: I was just surprised cause its almost impossable to see the diff on the edges
06:45 PM rue_mohr: huh
06:45 PM rue_mohr: I can make the "reflex" processor I designed as a kid on the fpga
06:45 PM Tom_L: try it
06:46 PM rue_mohr: I dont know how to make busses tho
06:46 PM rue_mohr: oh I'll get a pic of the box!
06:47 PM Tom_L: you poured it?
06:47 PM rue_mohr: yea a while ago
06:48 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1200045.jpg
06:48 PM rue_mohr: it looks like the pocket floated a bit
06:48 PM Tom_L: will it clean up?
06:49 PM Tom_L: or needs more work..
06:49 PM rue_mohr: I think it'll clean fine
06:49 PM rue_mohr: there were a few spots it looked like the sand caused pockets, I'll wait for it to finish cooling and see what the win was
06:50 PM rue_mohr: it annoys me when the spure and riser have the best finish
06:50 PM Tom_L: heh
06:56 PM rue_mohr: like, how does one do a set of bidirectional pins on an fpga
06:56 PM rue_mohr: I suppose I recall a tristate buffer...
07:05 PM Tom_L: ok i added a small chamfer we'll see how that goes
08:20 PM Tom_L: ok...
08:24 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_P1_chamfer1.jpg
08:24 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_P1_chamfer2.jpg
08:24 PM Tom_L: rue_mohr, is that too much chamfer?
08:25 PM Tom_L: setup part... notice the end is a tiny bit short :)
08:25 PM Tom_L: i think i'll raise that chamfer up maybe .003-.005"
08:28 PM Tom_L: the rest looks pretty good so far except i had the drills set to the wrong workplane
11:09 PM rue_mohr: hi
11:09 PM rue_mohr: that looks good
11:10 PM rue_mohr: sorry theres lots going on here
11:11 PM Tom_L: i figured
11:11 PM Tom_L: i raised it up slightly and will test again tues after the cutter arrives
11:12 PM Tom_L: can't finish it until then since that cutter is on the first position