Do you mean bearing holder blocks and rail support for round shafting and bearings? I'm in the process of making some now. I think you can come up with some fairly good ones using aluminum, derin, uhmw or pvc. If nothing else, a good oak or maple would make a bearing holder or shaft support that would last years. Standard woodworking tools suffice. It helps if you have a drill press. Shaft supports can be as simple as taking a flat square of material and drilling a hole the size of the OD of the shaft (sized for a tight fit) and mounting it on the inside wall at each end of your machine. A larger rectangle shaped block, fashioned the same way and then split along one side and drilled for nuts and bolt (to close/secure the split portion) will hold a round linear bearing tightly and offer easy removal and numerous mounting and/or taping options. Keep it simple and make it sturdy and it'll work great! Sorry if this wasn't what you meant, or is info you already knew, but want to pass on that you don't have to spend the big bucks to make this stuff work accurately. It may not look as pretty, but it works! Once you have a working machine, use it to make your fancy parts!
-Marc  |