Elevator/Telescopic Arms & Motors to Use

[Camren]

In 2011 our mentor had an idea that didn't quite make it to the final design. It was to use the telescoping pole that diesel drivers use to clean there stacks and rig. Im pretty sure you can pick one up at your nearest diesel dealership.

[Phyrxes]

Pneumatic tubing can be purchased that is already coiled or you train it around a large diameter pipe (sewer pipe works for this) with a bit of work. I've even seen teams just create a bundle, occasionally wrapping it in some sort of protective material no slip mat seems popular, and using rubber bands or other elastic material to attach it at several points.

The plastic chain from the KOP is provided by Igus and is called "energy chain."

[MARS_James]

To answer your question about stopping it from over extending we used a string potentiometer. It is easy to program and our oldest use of one was 2005 and it still works