ABS replacement strut

This is a derivative work from MBI's open source parts files - http://www.thingiverse.com/thing:4973.

This is a first attempt to print a replacement for one of the plywood struts which commonly get broken on the ABP during assembly.

I broke mine by fat fingering it while assembling my Thing-O-Matic in Mar. '11. I'd been trying to get this into CAD and learn how to use some idle CNC machines at a local college. But, the MBI files were hard to use several months ago. Rev. F is cleaner. If