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Unread 12-02-2012, 11:13
davidrk13 davidrk13 is offline
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Re: Bridge material question

Quote:
Originally Posted by Retired Starman View Post
The competition field does not include the pinch guard, but it is good to have it on your practice bridge to keep people from getting their hands under the bridge. The worse that an happen might include having a finger cut off or some hand bones broken. This won't happen on the field since there won't be people getting their hands under the bridge. The most dangerous place is in the hinge assembly. A second danger point is right at the end of the bridge where the bridge meets the floor. If you don't want to build the entire guard, consider putting a guard over both sides of the hinge.

There is a significant difference between the slickness of a plywood bridge and one with polycarbonate on it. If you can't afford polycarbonate, consider something e styrene or acrylic which might bee a little less expensive but would be durable enough for practice.

Dr. Bob

Chairman's Award is not about building the robot. Every team builds a robot.
thank you very much retired starman just one question concerning the bridge. i already finished the plywood version of the bridge and the most i can do is to use a coating to try to mimic the slickness of the actual competition bridge what do u recommend i should get to coat the plywood to accomplish a like slickness to that of the polycarb?