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Unread 21-01-2008, 22:46
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Re: Official Team 2526 Robot Model!!

Quote:
Originally Posted by Daniel Bathgate View Post
Make sure you understand how the pneumatic system works. As rookies last year, we designed an arm that bears a strong resemblance to yours, but didn't realize that the pneumatic cylinders can be either all the way out or all the way in, not stopped in the middle with the provided parts. We came up with a hack that used two solenoids per cylinder to achieve midpositions, but we had major control problems and ended up having to remove our arm. The cylinders you have also look undersized to me; I have doubts they will be able to hold the arm and trackball up.

That's a really cool design, just avoid making the mistakes we made with pneumatics.
Can you explain the hack further? We are looking at a way to get multipositions from a piston and this could be very helpfull.

thanks
 


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