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Unread 18-11-2005, 09:50
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Re: Direct Drive Four Motor System

Quote:
Originally Posted by Alan Anderson
You're missing something relatively important in your thinking here. Yes, a good driver can effectively be the element that closes the loop, but only when there is a driver at the controls. However, a reliable autonomous routine pretty much requires closed loop software control of motor speed.
I'd qualify that a bit with "an autonomous routine that has a decent chance of screwing up."

If you're just knocking off the hanging tetra, you can go open-loop (as the only thing you have to do is drive forward a smidge and raise an arm). There's very little chance of this screwing up, as you're not going far, and the hanging tetra is a big target.

Now consider the 10-point ball from FIRST Frenzy. Tiny target, really far away. Break out the encoders, folks.
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William "Billfred" Leverette - Gamecock/Jessica Boucher victim/Marketing & Sales Specialist at AndyMark

2004-2006: FRC 1293 (D5 Robotics) - Student, Mentor, Coach
2007-2009: FRC 1618 (Capital Robotics) - Mentor, Coach
2009-2013: FRC 2815 (Los Pollos Locos) - Mentor, Coach - Palmetto '09, Peachtree '11, Palmetto '11, Palmetto '12
2010: FRC 1398 (Keenan Robo-Raiders) - Mentor - Palmetto '10
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2017-: FRC 5402 (Iron Kings) - Mentor

93 events (more than will fit in a ChiefDelphi signature), 13 seasons, over 60,000 miles, and still on a mission from Bob.

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