Need help creating a winch and pulley system to pull a component up the robot

[anthonygraff24]

Originally Posted by Jon Stratis

This is the spool we used last year to pull down our catapult. It mounts on a 1/2" hex shaft. We printed it solid on our Makerbot 2x, and it worked perfectly the entire season!. Just print the two sides, stick them together, put the guide around the whole thing, and slide the shaft in. Use a bolt (I think it was a 10-32) through the provided hole to go through a looped end of a 1" wide nylon strap.

http://www.thingiverse.com/thing:254530

Obviously, it can probably be modified/adjusted based on your desired use!. We used a vex pro ball shifter with the optional third stage reduction and a single CIM motor to power it, mounting this right on our output shaft.

We just printed this part and we're putting it all together now and it seems like it will work like a charm! Thanks for the help!

[Zyrano]

In case you don't have a 3d printer... you can make a spool with pvc pipe and end caps, you can match drill the end caps with a hub adapter, and mount it all together.. I kind of miss the days of literally looking for things and making them work....