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mman1506
09-11-2013, 19:47
http://i353.photobucket.com/albums/r388/mman1506/minibot_zpsa0139125.jpg

Are team just finished our demo bot just in time for demo season. It's a 4wd 4 mini-CIM geared pneumatic drive train. We have geared it to 17fps with 1:10 VersaPlanetarys.


Of course we made a dubstep Trailer to make everyone cringe:
http://youtu.be/0EC0T7UF_OE
yash101
10-11-2013, 10:54
Nice, man! That goes really fast, probably because you are using gigantor motors :D. Now, you need to add features to it so that it ain't just a moving base :P
:D ::ouch:: :deadhorse:
yash101
10-11-2013, 10:55
Just wondering but why don't you try direct-drive? It doesn't seem as though you are getting any reductions using those two ginormous gears, only an inefficiency!
Andrew_V
10-11-2013, 15:04
Nice, man! That goes really fast, probably because you are using gigantor motors :D. Now, you need to add features to it so that it ain't just a moving base :P
:D ::ouch:: :deadhorse:


This bot's main design was for being a tough and rugged enough to go down stairs and flipping (maybe thrown down).

Reinforcement to the mini cim to the frame for rigidity is planned, as well as changing out the shafts to a thicker stronger one.

A removable function is also planned

Just wondering but why don't you try direct-drive? It doesn't seem as though you are getting any reductions using those two ginormous gears, only an inefficiency!

and those big gears are 1:1 Ratio'd
mman1506
10-11-2013, 16:01
Just wondering but why don't you try direct-drive? It doesn't seem as though you are getting any reductions using those two ginormous gears, only an inefficiency!

The output shaft of the versaPlanetaries are aluminium and aren't supported well enough for a cantilevered drive train, the gears allow for much stronger 1/2" steel shafts. It's also easier and cheaper to replace a shaft and maybe a gear in the event of a crash
yash101
10-11-2013, 20:32
That's nice. That makes me think, we should have gear transmission to everything so we can have all the motors in the same place on our robot! That would be a very geary robot :D. I'll have to say, that is pretty smart. However, why don't you reduce the gear size and move the motors closer to the wheels?
My humor sucks, doesn't it?
mman1506
10-11-2013, 22:53
That's nice. That makes me think, we should have gear transmission to everything so we can have all the motors in the same place on our robot! That would be a very geary robot :D. I'll have to say, that is pretty smart. However, why don't you reduce the gear size and move the motors closer to the wheels?
My humor sucks, doesn't it?


Those are the smallest gears available with a 6 hole bolt pattern.
Chadfrom308
11-11-2013, 08:35
How is it controlled?
Andrew_V
13-11-2013, 20:24
We have a sasquatch but right now we are just using a RC controller (9X) with talons