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Unread 30-03-2014, 16:16
Oblarg Oblarg is offline
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AKA: Eli Barnett
FRC #0449 (The Blair Robot Project)
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Re: 11th Hour Question about pneumatic catapult piston arrangement

Quote:
Originally Posted by hzheng_449 View Post
Our team has the same 2-pistons quasi-parallel to arm setup that the previous post mentioned though we have slightly less range and height.

I don't have any pictures of our setup offhand, but if your interested I might be able to dig up a few.

It's worth noting that our design requires a high flow solenoid in order to get enough power to the pistons in order to make a shot. If you don't have any, a work around would be to have one solenoid feed to each piston and have them fire simultaneously in code.
Harrison: the design actually doesn't require the high-flow solenoid to score (it was working in prototype-phase with a standard KOP solenoid); in fact, it's quite robust to decreases in flow rate, which is why we don't need any downstream tanks with it. We put on the high-flow solenoid because we had purchased it and figured it couldn't hurt, essentially.
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Member, FRC Team 449: 2007-2010
Drive Mechanics Lead, FRC Team 449: 2009-2010
Alumnus/Technical Mentor, FRC Team 449: 2010-Present
Lead Technical Mentor, FRC Team 4464: 2012-2015
Technical Mentor, FRC Team 5830: 2015-2016