OpenBuilds 20mm OpenRail Gantry plate, 80x80mm

This is a model the so called "20mm Gantry plate" for the OpenRail as made by OpenBuilds (it really is 80x80mm). I needed to reference this plate in one of my designs, and hoped/expected to find this in the OpenRails part files from http://www.thingiverse.com/thing:24886

I could not find it there, so I modeled it up quickly. The closest I could get to a reference file model that's not Solidworks was IGES and STL, so that's what's been uploaded ;)

The dimensions are really simple. Holes are 5mm diameter, except the 7mm holes for eccentric spacers. Plate is 80x80mm outer, holes are located on centerlines and 22.5mm off center for the outer hole set, the inner hole set is at 10mm offset of center.

The OpenRail system was created by Mark and Trish Carew of http://www.OpenBuilds.com