#robotics Logs

Oct 24 2012

20:16 rue_house !ime
20:16 rue_house !Time
20:16 rue_house !time
20:19 rue_house !time
20:19 rue_house !time
20:19 tobbor My watch says its 06:08PM Wed Oct 24 2012
20:20 rue_house pff
20:23 Tom_itx but you left
20:23 Tom_itx was it power related?
20:23 rue_house definitly
20:23 Tom_itx got my 2560 today
20:25 Tom_itx i wonder if i could use my old stepper drivers with it
20:25 Tom_itx i can't really see why not
20:25 rue_house outputs step and dir
20:25 Tom_itx i need to figure out how to set the current limit on it though
20:26 Tom_itx it's got a pot but no data sheets
20:27 rue_house Oct 24 05:39:49 dingdong -- MARK --
20:27 rue_house Oct 24 05:59:50 dingdong -- MARK --
20:27 rue_house Oct 24 06:19:50 dingdong -- MARK --
20:27 rue_house Oct 24 06:25:09 dingdong syslogd 1.4.1#18: restart.
20:27 rue_house Oct 24 06:39:50 dingdong -- MARK --
20:27 rue_house Oct 24 06:59:50 dingdong -- MARK --
20:27 rue_house so, between 6:19 and 6:25,
20:27 rue_house my UPS should have held
20:27 rue_house it didn't
20:28 rue_house no that was in the morning
20:28 rue_house (*^*&%???
20:29 rue_house ah that one must be on the other ups now
20:29 rue_house Tom_itx, use a resistor and an ammeter
20:30 Tom_itx wonder how many watt it would need to be
20:32 Tom_itx would that work on a chopper drive though?
20:35 theBear resistor and a scope then
20:36 Tom_itx when does US go back to non DST?
20:37 rue_house just to limit the max incase
20:37 rue_house after bush retired, nobody knows
20:37 rue_house I did a test to see if my etchant was still ok
20:38 rue_house when I was finished I'd etched the 5 overload boards for buddy
20:38 rue_house I need to go drill them
20:38 Tom_itx i need to know if it's this weekend or not
20:38 rue_house I dont know, all my clocks are computer, they just do it
20:39 rue_house s^
20:39 rue_house ugh I missed
20:40 Tom_itx nov 4
20:40 rue_house when is that
20:40 rue_house !time
20:40 tobbor My watch says its 06:28PM Wed Oct 24 2012
20:40 Tom_itx not far from now
20:40 rue_house I have 3 hours till bedtime
20:40 Tom_itx i gotta get up early
20:41 Tom_itx takin her to the airport
20:41 Tom_itx like 5am or something
20:41 Tom_itx to be there
20:41 Tom_itx Daylight Saving Time (United States) began Sunday, March 11, 2012, 2:00am, and ends Sunday, November 4, 2012, 2:00am
20:41 rue_house hmm I should do a ups test
20:42 Tom_itx Except Arizona and Hawaii. Move your clocks ahead 1 hour in spring and back 1 hour in fall ("Spring forward, fall back")
20:54 theBear ooh, i like that saying
21:06 rue_house drat I should have swapped the sound card while I had the chance
22:51 GargantuaSauce has anyone come across reasonably powerful (10kgcm+) servos with serial control that aren't obscenely expensive?
22:52 orlok GargantuaSauce: no
22:52 orlok you'll need to make your own pretty much
22:52 GargantuaSauce yeah didn't think so...damn hobby market and its simplistic interface
22:53 orlok theres openservo, but thats a replacement board
22:53 GargantuaSauce yeah and the unit cost is like 20 bucks
23:11 rue_house GargantuaSauce,
23:11 rue_house I have atmega32 software for controlling 4 PD loops
23:11 rue_house motor and potentiometer
23:12 rue_house Tom_itx, I dont think this is working
23:12 rue_house my goal was to find someone like me, I dont think thats really happened
23:12 rue_house I'v just learned what I'm not
23:12 GargantuaSauce i was considering that, i am building a hexapod though and it is impractical for 18
23:12 rue_house looking back, I'm not sure I'v really helped anyone, but I'v learned about picassos brush
23:13 rue_house GargantuaSauce, thats what I'm using on my hex
23:13 rue_house so that only leaves being some kinda comapnion for you lot
23:13 rue_house and I'm not sure you need me that much
23:13 rue_house Garak,
23:13 rue_house ..
23:13 rue_house GargantuaSauce,
23:14 rue_house !assist robots/buddy_III
23:14 tobbor Possibly http://eds.dyndns.org/~ircjunk/robots/buddy_III
23:14 rue_house http://eds.dyndns.org/~ircjunk/robots/buddy_III/buddyCorrected2.png
23:14 rue_house http://eds.dyndns.org/~ircjunk/robots/buddy_III/buddyCorrected2.png
23:14 rue_house pff
23:14 rue_house http://eds.dyndns.org/~ircjunk/robots/buddy_III/p1020058.jpg
23:14 rue_house goofy copy/paste
23:15 rue_house GargantuaSauce, thats 18 axis, 5 avrs, 1 sbc,
23:15 GargantuaSauce heh
23:15 rue_house serial bus to all the controllers
23:15 GargantuaSauce was hoping to keep it a little simpler...i do have stack of atmegas in front of me though <_<
23:16 rue_house that whole thing is <$40
23:16 rue_house well there is more now, still under 40
23:16 GargantuaSauce how are you driving the servos exactly
23:16 rue_house their vending machine motors
23:17 rue_house each axis has a pot and a gearmotor
23:17 rue_house the system uses split supply rails +-24V
23:17 rue_house so I only need 2 transistors to drive each motor
23:17 rue_house each avr controls 4 motors
23:17 GargantuaSauce ahh ok, was thinking h bridges would have driven up the cost
23:18 rue_house 1 sec
23:18 orlok argh
23:18 orlok PAX is coming to Melbourne
23:18 GargantuaSauce i have all my servos already purchased, mg995/996R's
23:18 rue_house http://eds.dyndns.org/~ircjunk/circuits/motordriver.png
23:20 rue_house by serial did you mean a board to take serial and control the servos then?
23:20 rue_house like the SSC16
23:21 rue_house my system gives me torque feedback
23:21 GargantuaSauce well i guess i meant cheap ones supporting (ideally) i2c or a cheaper alternative to openservo
23:21 rue_house position too
23:21 rue_house openservo is to make a servo form a motor and feedback device
23:21 rue_house you said you already have servos
23:22 GargantuaSauce it was sort of a last ditch question before i start coding the slave MCUs :P
23:23 rue_house you dont have to code anyting
23:23 rue_house there is open source software for serial -> hobby servo
23:24 GargantuaSauce the real question is why did I assume there wasn't
23:31 GargantuaSauce got a name for me? i see lots that are made to be PIC-based and not a lot of avr
23:34 home how does one make a servo?!
23:40 rue_house GargantuaSauce, isn't SSSC16 open source?
23:40 rue_house SSC16
23:45 GargantuaSauce if it was, looks like they've superceded it with the 32 channel version and closed it
23:45 GargantuaSauce and i can't find the sauce for the 16
23:46 rue_house 2 mins
23:47 GargantuaSauce found it...looks like lynx has been trying to cover it up
23:47 rue_house odd, I have my pc side spooler library
23:47 rue_house its avr isn't it?
23:48 rue_house hmm odd
23:49 rue_house not good
23:50 rue_house must have been on one f my machines that blew up
23:51 rue_house ah found it
23:52 rue_house ah I was adjusting the source for clock speeds
23:53 rue_house did you find it?
23:53 GargantuaSauce yeah
23:53 rue_house heh its back from 200
23:53 rue_house 5
23:56 GargantuaSauce http://www.youtube.com/watch?v=dhFa1NsStEc
23:56 GargantuaSauce you sir are brilliant