#robotics Logs

Feb 23 2018

03:17 AM tttb is now known as burg
03:21 AM burg is now known as burge
04:28 AM AchiestDragon: oh 18 servos beeing driven one psu current load the 25A bridge rectifyer gets hot , hot enough to melt the insulation on the wires attached to it
04:29 AM AchiestDragon: after about 2 mins of use
04:29 AM AchiestDragon: at least its not melting sevos there running cool enough
04:37 AM Triffid_Hunter: AchiestDragon: heh you're running servos from a linear supply?
04:41 AM AchiestDragon: 7.4v lipo , (thats 8.2v fully charged ) though a couple of bridge rictifyers (25A each ) giving a 1v drop each so the servo power does not go above 6v
04:41 AM AchiestDragon: so linear i guess
04:42 AM Triffid_Hunter: AchiestDragon: heh well those big bridges are designed to be bolted to heatsinks.. best be careful of their heat, diodes like to fail short circuit
04:43 AM AchiestDragon: could get away with configuring the bridges to run 9 servos each
04:43 AM AchiestDragon: i guess
04:43 AM AchiestDragon: but the servos blow if the voltage goes above 7.2v
01:54 PM davr0s: anyone here know anything about autonomous boats
01:56 PM z64555: er, autonomous in what way? I'm sure somebody around may be able to help if you wait long enough
01:58 PM davr0s: not after help, just general discussion
03:18 PM Elleo_ is now known as Elleo
03:51 PM Tom_itx is now known as Tom_L
03:57 PM SpeedEvil: davr0s: do you mean large ones, or 'toy' class
03:58 PM davr0s: any
04:32 PM rue_: I'm snowed in today
04:32 PM rue_: which is ok, if I'd left for work I'd be snowed out
04:33 PM rue_: got the generator going
04:33 PM rue_: put up a string of power-outage lights in the shop
04:34 PM rue_: I have about 2 hours before I get tired
04:37 PM SpeedEvil: I assume CO is properly dealt with?
04:38 PM rue_: well, the generator is running in the kitchen, so I can just turn on the stove fan and its all good, not that it vents outside, but it does have an activated carbon filter
04:38 PM rue_: :)
04:40 PM SpeedEvil: I'm pretty sure that does nothing to CO
04:40 PM rue_: dude the C in CO is for _CARBON_ and its a _CARBON_ filter, duh!
04:41 PM polprog: all windows taped shut not to let the heat away :P
04:41 PM * polprog starts to feel funny
04:41 PM rue_: :)
04:41 PM rue_: like your floating right?
04:44 PM rue_: one of the things I dont like about chromium is the lack of a 'stop loading page' button
04:45 PM polprog: havent used that for a while, have you tried hitting esc?
04:47 PM rue_: no I'm still waiting for the google search page to load
07:01 PM Snert_: get ghostery and block them ad trackers and crapola
10:24 PM rue_shop3: I cant beleive how bad a job openscad does of 3d graphics
10:25 PM orlock: yeah