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Unread 02-02-2009, 23:19
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Re: We're trying to lose weight...

Quote:
Originally Posted by domoarigato View Post
Thanks for the replies!

I think that we are going to be okay weight wise... Our finished robot weighs about 127lbs with the lexan shielding and everything. I think that we have a good idea on how to remove that extra weight!
We have used 030 Polycarbonate (lexan) for shielding velcroed on for many years. If your shielding is much more substatial than this you might want to ask yourself if it needs to be. As Grant Imahara points out in Kicking Bot.
"You can reduce 25% of the weight of a 1/4 panel by going to 3/16. To do the same with "lightining holes" will dramatically reduce the integrity of your armor". A good example would be drilling 1/2" diameter holes in a 1" grid (1" square minus (0.25)^2*pi=about 1-3/16) pattern on the 1/4" plate will reduce the mass by 3/16. You can reduce it 4/16 by going from 1/4 to 3/16 thickness (best of all no holes!).

P.S. We get hit by other robots a lot and this shielding has always worked well.
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