[Mr V]

Virtually every part on our machines is cnc milled. We use a lot of 1x1 and 1x2 tubing along with 1x1 and 2x2 angle for brackets and the like. For sheet material we mainly use polycarb and it too gets cnc milling. For milling the polycarb sheet we use double stick tape to attach it to a sacrificial piece of particle board that gets clamped to the table.

We also use the 3d printer for a number of things. We've used it to make gears for driving encoders and we use it to make pulleys for polycord loops. They basically have a 1/2 round indentation and slip over a piece of aluminum tubing. There are little tabs on each side that we use to rivet them to the tube. Those do a great job of keeping the polycord running right where we want it. We also printed a cover for a ratchet mechanism we used for our climber which had particularly sharp teeth. We incorporated a 3d version of our bear head logo on it for decoration.