#garfield Logs

Dec 24 2015

00:14 ^kat^ http://opensourcemachine.org/mm2html2/How_to_build_a_multimachine.html
00:55 ^kat^ 3 foot for 50 characters on paper tape, VLC being 5 MB, 300,000 feet or 56 miles, if thetape moved at 1mph, you could punch out VLC in a week ,, 20 million users of VLC = 1,120,000,000 miles of paper tape
01:04 ^kat^ ...
01:05 at^ wavers gni
15:46 rue_shop3 :P
18:48 at^ pours some veggie soup out onto the table for every
19:20 ^kat^ ...
19:27 rue_house hi kat
19:28 rue_house stripping down printers, you?
19:28 rue_house came in for soemthuing to eat
19:34 ^kat^-afk grinding ildlers
19:34 ^kat^-afk too soppy wet humidity condensation on everythng
19:35 ^kat^-afk laid a fan on a steel pod, took hours to see the water leaving it anywhere, still driping off the other side
19:45 at^-afk grabs the mic off
19:45 ^kat^-afk empty table and wreaks
19:45 ^kat^-afk good feelings upon the channel by bringing for a hail of
19:45 ^kat^-afk pleasantries
20:38 ^kat^-afk You have, or you have not, used a a/dsl transformer to couple a pwm signal from a ground-referenced system to the high side (over 200vdc) of some other system? That is the question. As always, if you are caught or killed, this never happened.
20:41 ^kat^-afk CY74FCT162H543CTPACT <<== part num has as many digits as the package has legs
20:41 at^-afk ponders a CY74FCT162H2G543CT
21:44 rue_shop3 sorry, got busy for a while
21:44 rue_shop3 not used transformers for pwm coupling
21:45 rue_shop3 I like systems that can go from 0% to 100%
21:45 rue_shop3 on the power supply I need to split that into 0-50% + 0-50%
21:45 rue_shop3 using a capacitor coupling
21:46 rue_shop3 this is doing a good job of impressing me
21:47 rue_shop3 so, I have two axies operated by pneumatic muscle
21:47 rue_shop3 independant
21:47 ^kat^-afk you can almost go 0%-100% wit a pulse signal transformer, just not with a power transformer
21:47 rue_shop3 they just pull, so standard I need 4 muscles
21:47 rue_shop3 [the transformer will not stay saturated at dc]
21:47 ^kat^-afk riht, you must add a tiny clock pulse
21:48 rue_shop3 its already 250khz....
21:48 rue_shop3 so, standard I'd need 4 muscles, but consider this
21:48 ^kat^-afk you disregard the dc, and measure/reconstruct on the secondary side based on the signal edges
21:48 rue_shop3 I take a star with 4 arms, and attached a star with 3 arms
21:49 rue_shop3 I take the 4 arms to the load where the air mucles would go
21:49 rue_shop3 but I only attached 3 muscles to the other part of the star
21:49 rue_shop3 the 3 muscles can control the 2 axies, still independantly
21:49 rue_shop3 but I just saved a muscle and two valves
21:49 rue_shop3 and a pressure sensor
21:50 rue_shop3 with the cost of a little math
21:50 ^kat^-afk ans complexified the control to the stratosphere?
21:50 rue_shop3 not so much, I think the math is gonna be simple
21:50 rue_shop3 just picking away at it
21:50 rue_shop3 X, Y ->f(n) -> A, B, C
21:51 rue_shop3 I'm sure this is done in fingers
21:51 ^kat^-afk fingers on a computer keybd?
22:00 rue_house the difference is 30 degrees, which is cool
22:01 rue_house 86.6% of one axis, 50% of the other
22:03 ^kat^-afk so you don't need 0%-100% :-)
22:03 ^kat^-afk pics?
22:04 rue_house + Y
22:04 rue_house on same stay
22:04 rue_house star
22:04 rue_house the bottom segment is the same
22:04 rue_house on the +, one axis on each ... axis
22:05 rue_house X and Y
22:05 rue_house on the Y I name them A, B, C
22:05 rue_house so, with the 3 muscles, I can control 2 axies
22:05 rue_house ?
22:06 ^kat^-afk ok....?
22:07 rue_house if it works, I can save 1/4 of the muscle hardware
22:07 rue_house this would be awesome
23:23 Tom_itx delta muscle arrangement?
23:38 rue_bed sorta
23:56 ^kat^ pics