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Re: Do you have to use 2x1x1/8" tubing for a WCD?
Quote:
Originally Posted by SuperNerd256
All motors and additional parts were bagged and tagged. An 8lb superstructure? What did you use? What did it look like? Was it strong enough?
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This is the only photo I have online right now. It's primarily 1x2x1/16 6061 rectangular tubing, with some 1x1x1/16. The superstructure is comprised of the four 1x2 legs, the 1x2 horizontal brace across the top back, the two 1x2 shooter wheel/hood supports, and the four 1x1 roller supports and gusset braces. About 8lbs total for the framework, plus all the weight in motors, polycarb, etc. The front deployable bridge/intake device is not part of the superstructure.
The base is 1x2x1/8 for the sides, back, and front, with 1x1x1/16 and 0.5x0.5x1/16 pieces for the bumper mounting.
The whole thing is plenty strong. We have tons of fun using the front triangles to ramp it and jump it over the barrier, or speed bumps in parking lots. It catches air nicely and lands pretty level, with a slight bounce from the pneumatic tires.
Based on my experiences flexing back warped frames after welding, I wouldn't go to 1/16 wall for the base frame.
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Teacher/Engineer/Machinist - Team 696 Circuit Breakers, 2011 - Present
Mentor/Engineer/Machinist, Team 968 RAWC, 2007-2010
Technical Mentor, Team 696 Circuit Breakers, 2005-2007
Student Mechanical Leader and Driver, Team 696 Circuit Breakers, 2002-2004
Last edited by sanddrag : 15-04-2012 at 13:48.
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