Ultimaker Fab Feet w/ Rubber Grips

These BIG Ultimaker Feet by thingster appeared to be a well-made design, accommodated the cables nicely underneath and allowed for inserting a screw to hold them in place (drilling into the side of the Ultimaker required, of course). However, I wanted something to grip the table top at least a little bit. I added four posts underneath to hold small rubber feet (standard size found at Home Depot, etc.). These feet will lift the Ultimaker Original 3.5 cm (approx 1-3/8") off the surface - with