So I had another kick at the parallel guide issue. Here is an improved version that serves two purposes. The first is to hold the guide up and the second (imo) even more important task is to lock the guide in position. This version is an extension to a standard Festool quick clamp that features an integrated nut and bolt to secure it to the clamp. The benefits are that the jig doesn't move and the material is not damaged by the clamp. Give it a look, comments welcome. I'm just having some fun with my printer so open to ideas also.