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Unread 26-01-2011, 23:19
Ethan Spitz Ethan Spitz is offline
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FRC #3637 (The Daleks)
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Join Date: Feb 2009
Rookie Year: 2011
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Re: Regulating power to a servo with a relay

Quote:
Originally Posted by apalrd View Post
A servo updates every 20ms (that's how long the FPGA waits between sending PWM pulses) so a 20ms loop should work fine.

Why not just use a proportional servo? Two came in the kit, as part of the camera pan/tilt head (you really only need a tilt head, because you can twist the robot to pan).
Its not for use with the camera, its moving a joint on an arm so we need a really torquey servo.

This servo is 260 oz-in at 1.55seconds/60 degrees

http://www.jrradios.com/Products/Def...ProdID=JRPS791

Do you know of any servos that are:
  • Proportional
  • 260 oz-in or higher
  • and are under 4 Watts of mechanical power
If you do I would appreciate a link to said servo very much.

Thanks!
Ethan
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