I forgot one thing. The 1/4" joining plates my team uses are a bit heavy (and excessively strong). Next year we will be going with 3/16" but doubling up (joining top and bottom) on the four outer corners.
You all should also take a look at this thread
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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
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