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Unread 22-01-2008, 21:30
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Travis Hoffman Travis Hoffman is offline
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FRC #0048 (Delphi E.L.I.T.E.)
Team Role: Engineer
 
Join Date: Sep 2001
Rookie Year: 2001
Location: Warren, Ohio USA
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Re: Andy Mark Super Shifter

We used Gen 2 servo shifters last year. Once we "broke in" the transmissions, they shifted very smoothly. Very. Still do. Not as fast as pneumatic, but I'd guess below a second.

We have no experience with the SuperShifter servo shifting, but I'd expect similar performance. I feel the simplicity as well as the weight and space savings of the servo shifting setup (goodbye solenoid valve, cylinders, tubing, Spike Relay) balance the drop in shifting performance relative to pneumatics.

Just keep the backup battery fresh. Buy enough to keep them charged and swap out every 1-2 matches, just to be safe. We rotated four backups last year, but you could probably get away with only two. Dying backup battery = weak servo holding force = shifters coming out of gear = bad.

You could also choose to employ an onboard backup battery charging circuit to keep the battery fresh.
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Travis Hoffman, Enginerd, FRC Team 48 Delphi E.L.I.T.E.
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Last edited by Travis Hoffman : 22-01-2008 at 21:34.