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Unread 30-03-2014, 16:16
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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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Unread 31-03-2014, 20:00
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Re: 11th Hour Question about pneumatic catapult piston arrangement

I would like to thank everyone for helping out TheHolyHades1. With your help team 1257 was able to construct, install, and test a pneumatic catapult during our last event before Regionals while never missing a match and finishing the qualifying rounds ranked 18th!

Thanks again for the help, and great job TheHolyHades1 and your build team. I am sure pictures and a video will be coming soon.

Last edited by BeardyMentor : 31-03-2014 at 20:41.
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Unread 01-04-2014, 07:51
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Al Skierkiewicz Al Skierkiewicz is offline
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Re: 11th Hour Question about pneumatic catapult piston arrangement

Solenoids still need to be a maximum of 1/8" NPT under R77, C.
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