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Unread 30-10-2016, 20:24
BrendanB BrendanB is offline
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AKA: Brendan Browne
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Re: pneumatic catapults

Quote:
Originally Posted by Cothron Theiss View Post

So long story short, what methods do you all use to mount the catapult arm and/or use as a fulcrum?
Ours was made an added this year during our third district event so we drilled a 1/4" hole, threw a long bolt through the lexan frame of the catapult, and used some round 1/2" OD 1/4" ID tubing from Vexpro as spacers. The frame was pretty rigid so we made the spacers have a slightly loose fit. Just enough to keep it steady but allowed it to pivot freely.

Had it been a made in our shop we might have used bushings or bearings as a pivot.
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