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Unread 23-08-2005, 14:49
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Sparks333 Sparks333 is offline
Robotics Engineer
AKA: Dane B.
FRC #1425 (Wilsonville Robotics)
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Re: COTS Parts made just for FIRST Robots

Quote:
Originally Posted by Matt Leese
What you didn't really add was that it never worked particularly well. The servo barely had enough power to shift the transmission and sometimes it would get stuck out of gear. If it were done again, it would require two servos shifting each DeWalt (at least).

Matt
You want to be careful with that. It's popular method with RC model airplanes (the really big ones, like 33% Extra 300's) to gang two or more servos to make a really big control surface move (I have most often seen this in the rudder, though there are often more than one servos driving each aileron) and I have seen some articles about how they can fight each other if not calibrated correctly, reducing battery and servo life. There are COTS parts that keep them from doing this, but I don't know how they work.
Just something to look into.

Sparks
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ICs do weird things when voltage is run out of spec.

I love to take things apart. The fact that they work better when I put them back together it just a bonus.

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