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Unread 26-01-2009, 22:16
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Re: [FTC]: FTC - Pictures and Videos Here

We use use a third servo to rotate the puck picker.

We initially had a pair of servos on each claw (one to grip, and one to lift) but there were two problems.

1) We needed more than 180 deg rotation.
2) They weren't fast enough to "throw" the pucks into our dumping bin.

So We attached a 40 tooth gear to a single rotate servo, and drive a 20 tooth gear with it. The two gripper servos are attached to the shaft that the 20 tooth gear is on.

This way we can get up to a full rotation with twice the speed.
You need to set the "period" on the servo VI to 0 to get maximum speed.

To lift the puck bucket, we use two 12V motors (one of which has an encoder on it for positioning)
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Unread 27-01-2009, 09:54
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Re: [FTC]: FTC - Pictures and Videos Here

Quote:
Originally Posted by PhilBot View Post
This way we can get up to a full rotation with twice the speed.
You need to set the "period" on the servo VI to 0 to get maximum speed.

I thought the number you input for max speed was "2". Did I miss something?
Thanks,
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Last edited by jbbjjbt : 27-01-2009 at 20:58. Reason: wife read post and corrected grammar
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Unread 01-02-2009, 22:16
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Re: [FTC]: FTC - Pictures and Videos Here

This is a link to a video of our bot, this is the first day testing our autonomous.

http://www.youtube.com/watch?v=Xh4Qo...e=channel_page

Enjoy,
Greg
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