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Unread 15-01-2014, 10:51
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Aren_Hill Aren_Hill is offline
Build Nifty Things
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Team Role: Mentor
 
Join Date: Feb 2005
Rookie Year: 2005
Location: Menlo Park CA
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Re: VEXpro Build Blitz

Quote:
Originally Posted by cbale2000 View Post
I'm looking at the CAD files for the team JVN robot, and I can't seem to figure out what is providing the shooting force for their catapult (Springs? Surgical tubing?). Is there something I'm missing?

I'm also curious what reductions were used on the planetary gearboxes on the shooter retraction mechanism and the collector, as well as what motors are attached to them.

EDIT:
Ok, so I figured out the answer to most of those questions (I finally found the robot reveal video on YouTube), I am however still curious as to what kind of surgical tubing you guys used for the shooter, and what the reduction is on the planetary used on the collector.
Mcmaster Black Latex Tubing, 1/2" OD x .25" ID I believe. Also, 9:1 reduction for the pickup with a MiniCIM driving it.
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1625->3928->148->1296->971 oh dear
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