About this 3D model

Aluminum bed for the printrbot jr. Needed because standard wooden print bed was warping. Cut from 5mm thick aluminum plate. The mounting holes are recessed so that the stock screw heads are underneath the printring surface. In the pdf template the outer rectangle represents the aluminum plate size and the corners of the inner rectangle can be used to mark (center-punch) the drill holes. Note that the plate's overhang is bigger in the front due to the printrbot jr.'s structure.