#robotics Logs

Jun 10 2017

12:00 AM rue_house: a sharp move will also take it over 25%
12:24 AM aberon: ouch
12:26 AM rue_house: its just something to know
12:26 AM rue_house: I'll see if I can use the logic analizer to grab whats going on
12:28 AM aberon: is it the same thing as with most servos we see (that are not digital because iirc digital ones don't have that behavior) where when you turn on the controller they have a quick burst?
12:29 AM rue_house: well if the command position is different than their current position, then yea, they will, to get to the initial position
12:29 AM rue_house: BUT it seems that even if they are on-position, they will have a bump of more than 25%
12:29 AM rue_house: on startup
01:06 AM aberon: study it, find the cause
01:06 AM aberon: would take recording everything that happens during the time window, current, voltage, orders from the controller
01:34 AM rue_house: ? naaa
01:58 AM aberon: go on..
09:11 AM rue_house: It might help if I gave the servo some powerup time beofre I sent the first pulse
12:12 PM mrdata: rue_house, some small fraction of a second should do
12:14 PM mrdata: how much did it twitch?
06:07 PM anniepoo: 8cD Playing with Prolog -
06:07 PM anniepoo: Sending a message to an arduino from Prolog
06:07 PM anniepoo: https://www.youtube.com/watch?v=1y4inrTRCts&t=31s
06:07 PM anniepoo: 8cD we're doing more robotics!
06:18 PM robopal: 8cD is some kind of smiley?
06:54 PM ace4016: 8 <- eyes, c <- nose, D <- mouth smiling
07:00 PM anniepoo: thanks ace!
07:01 PM anniepoo: https://github.com/Anniepoo/prolog-examples/blob/master/emoticons.pl
07:01 PM ace4016: hehe
07:02 PM anniepoo: 8cD Everyone should use advanced research in computer science to engage in silliness
08:05 PM ace4016: that's how you know things are going well
08:06 PM anniepoo: 8cD Just put some zap-a-gap in the last few pinholes in the snail shell
08:06 PM anniepoo: and the edge is attached
08:07 PM anniepoo: when it sets up good, I'll do a final sand, and, I hope, that'll be it - ready to tack cloth and paint
08:20 PM anniepoo: 8cD brilliant - if I have any more holes to fill, I'm using nail polish.
08:20 PM anniepoo: Hmm.... wonder where I could get a pint or so of nail polish. It'd be perfect for the snail
08:58 PM anniepoo: so, it's all sanded down, but I found a single spot where there was a bubble under the surface. I ground that out, filled it with bondo
08:58 PM anniepoo: I'll sand that down and should be ready to give it a couple coats of something self leveling
09:09 PM malcom2073: Got me some new toys: https://scontent.fphl2-3.fna.fbcdn.net/v/t31.0-8/19055074_1683409495006758_6329180740206124433_o.jpg?oh=8b340d04f0467477ce468e750c3a1e5e&oe=59A24C1A
09:10 PM * anniepoo gives malcom some Raspberry Pi
09:12 PM malcom2073: mmm pie
09:12 PM malcom2073: I need more, but they limit you to one per purchase, so I'll have to go back another day and get more
09:12 PM malcom2073: Went with a friend so I could buy two of each heh
09:12 PM anniepoo: 8cD
09:15 PM malcom2073: If I was better at PCB design I'd totally go for the compute module though, even though it's higher price
09:51 PM anniepoo: 8cD applied first coat of glaze to shell
10:24 PM anniepoo: 8cD applied second coat of glaze to shell
10:30 PM Tom_L: rinse and repeat
10:31 PM rue_house: THERE IS NO EDIT CLAUSE!
10:31 PM rue_house: exit
10:32 PM Tom_L: it's like groundhog day
10:32 PM rue_house: mrdata, I'v not measured yet
10:32 PM rue_house: I just got back fromt eh vancouver mini maker faire
10:33 PM Tom_L: how'd it go?
10:33 PM rue_house: lots of things to see
10:33 PM Tom_L: and what did you take?
10:33 PM rue_house: nothing, just me
10:33 PM rue_house: its a two day event, when I go it takes 2 years to make things, 2 weeks to set it up, and 2 days to play it out