FRC shifting gears

[jkelleyrtp]

Originally Posted by EricH

9 lbf is not a legal FRC servo. Unless it's insanely slow... servos are only 4W in FRC, and I find it very difficult to comprehend a 9 lb force out of a 4W servo. Also, factor in the load of a moving drivetrain.

Here is the shifter in question: http://www.andymark.com/product-p/am-2297.htm

Doesn't look like people like it very much, and I don't see a power rating on it.

[IndySam]

Originally Posted by jkelleyrtp

Here is the shifter in question: http://www.andymark.com/product-p/am-2297.htm

Doesn't look like people like it very much, and I don't see a power rating on it.

If you call the good folks at AndyMark they will recommend you shift with air. FIRST legal servos (as of previous years rules) will have great difficulty shifting under load. I have seen teams use window motors to shift successfully but nothing beats the instant snap of a 3/4" cylinder.

You can get a lot of shifts out of a couple filled tanks.

[Peyton Yeung]

Originally Posted by jkelleyrtp

Here is the shifter in question: http://www.andymark.com/product-p/am-2297.htm

Doesn't look like people like it very much, and I don't see a power rating on it.

For video of it in action check this out.