I've been working on a project I'd like to have printed at Shapeways, and I'm looking for some general advice as I know some people here have had parts printed there. The parts in question are replacement arms for Tidal Wave. I'm just looking to get one arm printed for now to test how it fits together. Some questions I have: - Would 1mm walls be too thin and prone to breakage? - Which material should I choose? Shapeways | Materials - Would, for example, a 1mm OD peg be overly tight inside a 1mm ID peg? Would it be better to have a 0.9mm OD peg for a 1mm ID peg? - Any tips to knock the price down? - Any guess on a ballpark price of the attached model? It's about the same size as Tidal Wave's arms, and the walls are 2mm thick.