Looking for adjustable accordion arm

I recently had a great idea for a completely useless, yet hilarious project for me to work on, but I am stuck on a single piece.

The end result is a joke device that uses one of those accordion, spring loaded boxing gloves controlled over USB (the idea came about in a discussion over the universal wish to punch idiots over TCP/IP). To understand what this is, you'll have to think slapstick comedy and saturday morning cartoons (of the Wile E. Coyote variety). It sort of looks like this but replace the lamb with a boxing glove, and when extended looks like this: XXXXXXXX. Imagine the coyote opening a door that he expects the Road Runner to be behind, and out pops a boxing glove on an accordion arm that hits him in the face, making those little roadrunners circle his head.

I suppose I could make one out of some material (metal, plastic, wood?) but I don't have much in the way of fabrication facilities in my new apartment. The best outcome would be if I could get such an arm off of an existing device.

Sure other things could work (a piston for example), but the look of this project is very important and an accordion arm is a requirement to that end.

Any idea on how to go about building/obtaining such a thing? I can't even figure out what to use as search terms.

opqdan (author) 10 years ago
Polemic opqdan8 years ago
I am currently building a project that uses such an arm. I think it can be done using aluminum 1/8th x 3/4 x 8" strips. The only tools I am using is a simple hacksaw, a drill, and a Dremel for cleaning up edges, but I suppose that a metal file would work better.