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  #16   Spotlight this post!  
Unread 14-03-2011, 23:41
MP3341 MP3341 is offline
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Re: Minibot help

neodymium magnets
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Unread 14-03-2011, 23:42
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Re: Minibot help

And deployment, use 1 movement. In week 1 lots of mini-bots hit a snag after there 1st deployment motion (i.e. mechanism flips down mini-bot shot forward then UP, the mini-bot would not shoot out) in conclusion Less moving parts=the better, and less room for error =)
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Unread 15-03-2011, 01:56
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Re: Minibot help

Team 3680 is having a similar problem with those "latex rod" minibots.

We constructed a minibot with 1/2" OD aluminum rods, attached surgical tubing on them, but the minibot does not seem to want to climb the pole. The rods just run at the base of the pole with no effect.

We were looking into traction issues- do the rods have to have a very snug/tight fit around the pole?
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Unread 15-03-2011, 02:26
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Re: Minibot help

Your rods are far too big and as a result you're stalling your motors (they do not have the torque necessary to lift the robot). Try smaller.

Your problem isn't caused by this (probably not a tight enough fit) but I thought I'd mention it.
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Unread 15-03-2011, 14:54
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Re: Minibot help

Can we use custom made spacers on the minibot?
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Unread 15-03-2011, 15:22
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Re: Minibot help

Quote:
Originally Posted by TheGuyz View Post
Can we use custom made spacers on the minibot?
If the raw material they are fabricated from is listed as an allowable material in R92 they should be legal.
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Unread 15-03-2011, 15:28
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Re: Minibot help

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Originally Posted by Vikesrock View Post
If the raw material they are fabricated from is listed as an allowable material in R92 they should be legal.
So we should be able to machine any parts as long as the material are allowed
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Unread 15-03-2011, 16:16
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Re: Minibot help

Lighter is faster as we found out. If you look at Waves, it's very light and it has NO WHEELS! It just has rubber tubes on shafts to drive it up.
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Unread 15-03-2011, 21:18
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Re: Minibot help

Quote:
Originally Posted by Eagleeyedan View Post
Lighter is faster as we found out. If you look at Waves, it's very light and it has NO WHEELS! It just has rubber tubes on shafts to drive it up.
A few questions...
How fast? Any problems with amount of cantilever you had on shafts? Is the blue tubing some kind of fatter surgical tubing?
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Unread 15-03-2011, 21:30
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Re: Minibot help

Quote:
Originally Posted by JB987 View Post
A few questions...
How fast? Any problems with amount of cantilever you had on shafts? Is the blue tubing some kind of fatter surgical tubing?
It was very fast but it did fall off a few times. This isn't our minibot it's Wave's but we almost used it. As to the material, I am not sure. It's some kind of rubber tube.
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Last edited by Eagleeyedan : 16-03-2011 at 15:15.
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Unread 15-03-2011, 23:48
Tyler Olds Tyler Olds is offline
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Re: Minibot help

Quote:
Originally Posted by Eagleeyedan View Post
It was very fast but it did fall off a lot. This isn't our minibot it's Wave's but we almost used it. As to the material, I am not sure. It's some kind of rubber tube.
I don't recall our mini-bot ever falling off of the pole (well maybe once).... we had a couple of issues with deployment (which is worked out), but that was never really due to the mini-bot.........
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