[lukevanoort]

We did a hybrid two-stage forklift/double-jointed arm last year, with the arm mounted on the top of the forklift. Our linear bearings were 24" heavy duty full extension ball bearing drawer slides from a local hardware store. It worked very nicely, and was very low friction. We got the idea from 229/217 in '05 and it worked well for them too (although I believe their slide was for server racks?).