[lark95]

Here are some jigs that we have used very successfully in the past. The first is steel metal plates with the mounting hole locations for the BB P60, and versa planetary gearboxes in all their configurations. These make it super easy to quickly mount these boxes to anything. Even plywood for prototyping. The second jig is a custom clamping box we made to make drilling cross ways through 80/20 extrusions super easy. It has a hardened steel insert that when installed allows a 1/4 inch bit in for clearance on 1/4 20 hardware, and when removed allows a larger bit for bolt head clearance so that the head of the bolt is flush with the surface of the 80/20.

I believe that 80/20 is one of the best prototyping materials there is. We have used it very successfully for quick building chassis, and prototyping fairly quick and easy yet precise shooter and claw mechanisms. it is great.