#robotics | Logs for 2017-01-23

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[01:09:54] <rue_house> whaaat!?!?!? WHAAAT!?!
[01:20:04] <mrdata> whaaaat
[04:39:36] <deshipu> rue_house: just a cheap servo with the electronics replaced
[07:36:36] <deshipu> jhylands: https://hackaday.io/project/19397-vl53l0x-board-with-jst-sh-connector
[07:37:03] <jhylands> deshipu, nice - thanks
[07:37:49] <jhylands> I ordered 4 of the Pololu boards from a Canadian supplier who had them in stock
[07:37:56] <jhylands> so I'll see what they look like when I get them
[07:38:41] <deshipu> jhylands: you mentioned you are using the BNO055 sensor?
[07:39:27] <jhylands> Yeah, I've got one mounted on the first rev of my mini-sumo board
[07:39:41] <deshipu> jhylands: but you don't use it with micropyton?
[07:39:43] <deshipu> python
[07:39:46] <jhylands> yes
[07:39:59] <deshipu> because I've been tasked with writing a driver for it
[07:39:59] <jhylands> my Cortex M4 mini-sumo board
[07:40:11] <jhylands> I haven't written anything for it yet
[07:40:24] <deshipu> I suppose it will be straightforward
[07:40:40] <jhylands> http://blog.huv.com/2015/10/seeker-2x-running-micropython.html
[07:40:50] <jhylands> yeah, I think it should be
[09:39:12] <rue_house> deshipu, replaced with what tho
[09:41:07] <veverak> deshipu: pingy? :)
[09:49:34] <deshipu> veverak: I'm on the second page!
[09:50:40] <veverak> awesome !
[09:55:25] <deshipu> sorry for it going so slow
[09:56:28] <veverak> it's ok
[18:02:02] <anniepoo> ok, maybe I'm not making a snail
[18:02:32] <anniepoo> turns out a snail's body is about the worst shape imaginable to cram mechanism in without it being too big and too awkward
[18:03:12] <anniepoo> so rather than keep fighting, I'm gonna pick a new animal
[18:08:37] <z64555> thats what you did last time, and then popular support for the snail chimed in :D
[18:09:01] <anniepoo> that's true
[18:09:36] <anniepoo> ok, basically, a snail is just the wrong cross section to stuff the 'tank' in
[18:09:56] <anniepoo> now, I could get more cartoony with the snail
[18:10:37] <anniepoo> and making it lift it's head and move neck around essentially means there's an arm on the front
[18:11:36] <anniepoo> which is a) lots of force to lift, and needs counterweight, b) messes up center of gravity, c) still needs a lot of power, weight, etc.
[18:12:46] <anniepoo> 8cP
[18:14:11] <anniepoo> ok, off to try some other body shapes
[18:14:33] <anniepoo> durn you z, now I really really wannu do the snail!
[18:16:35] <z64555> :D
[18:17:14] <z64555> It's fun because it's challenging
[18:27:18] <jrowe47> make it a racing snail
[18:31:53] <anniepoo> trying to not make it an overloaded snail
[18:32:18] <anniepoo> OK - going to rethink this
[18:35:51] <anniepoo> 8cD this is what I love about engineering.
[18:36:02] <anniepoo> >8@_
[18:38:15] <z64555> Can always make it a trike if the interior mechanism won't fit inside the shell
[18:44:36] <anniepoo> a trike?
[19:06:51] <z64555> trike, extension of the word bike. Refers to using three wheels
[19:24:30] <anniepoo> right. That I understood, but how's it work as a trike?
[19:31:15] * DJuego desaparece,
[19:31:16] <anniepoo> Ah, you mean modify the mechanism.
[19:31:26] <anniepoo> it's currently treads
[19:31:49] <anniepoo> remember mbrumlow? I was going to copy his bot. Pretty much ddi
[19:32:11] <anniepoo> (he had family emergency, that's why he evaporated)
[19:33:54] <z64555> anniepoo: I mean put the wheels/treads outside of the shell, and use a caster or something underneath the head for stability
[19:34:45] <z64555> Speaking of vehicles, I managed to pull out a rusted heap of a lawnmower a few days ago
[19:35:08] <z64555> Frame is still good, mostly, just needs a spot on the frame to recover a rust spot
[19:36:00] <z64555> It's got a verticle shaft engine on it, and the transmission is a belt system. The pulleyes are still usable, belts are trashed, and some of the springs will need replacing
[19:36:43] <z64555> It's got a gearbox powered by the belt, and a differential on the axle. :D
[19:37:16] <z64555> differtial's still good and loose, gearbox isn't as fortunate
[19:37:32] <z64555> will have to crack that open at some point and relube it
[19:38:27] <z64555> Dunno about the engine, magenetos probably lost their magnetism, spakrplug need replacing, etc.
[19:38:55] <z64555> need to pull it off the frame and see if I can get it spinning
[19:39:37] <z64555> If I'm lucky, I can get it working and use it as a tractor/go-cart around the property
[19:40:24] <z64555> belly mower is basically trashed, onlything still useable is some pulleys and the lawnmower blade and hub
[19:56:46] <anniepoo> z - I see what you mean
[19:57:15] <anniepoo> I think the solution's to just try to reshape the body
[21:07:03] <z64555> blah, I keep forgetting what I tuned my antenna to
[21:07:14] <z64555> I need to make a balun and pigtail for it before I forget again
[23:49:32] <rue_house> # coding techniques employed: pseudorandom-spiderweb, s (otherwise 'Stupidly short variable names'),
[23:50:04] <rue_house> # global-fixedit!, CammelCase
[23:50:36] <z64555> not like anybody has to maintain that stuff, anyway