[eNc]

Originally Posted by Elgin Clock

Telescoping is a pretty easy concept, but can be tricky to implement.

Last year, we telescoped our arm to gain the height to grab the pull up bar.

This was done by two lengths of square tubing, where one fit inside the other.
Then, a pneumatic piston was attached to the inner tube, and the outer tube, and then extended, pushing the inner tube up out of the larger outside tube, and resulting in a telescoping action.

I don't have any good pics of the mechanism we used, but can take one at the meeting when I get a chance and send them to you, or put them in our gallery if you would like.

yes some picture would be much appreciated... and yes i will search lol