PRUSA i3 Isolation Foot (Bear upgrade) - 2040 aluminum extrusion

Isolation foot for corner of the Prusa Bear Upgrade (2040 aluminum extrusion) for use with sorbothane isolation pads.

Isolate It: Sorbothane Vibration Isolation Circular Pad (.25" Thick, 2.25" Diameter)
https://www.amazon.com/gp/product/B0042U8P9C/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

The idea was to center this foot over the joining plates. I added recessed screw holes so the foot would sit level and the existing screws would keep the foot from shifting.