Anti-Vibration rack shelving feet

These feet allow a rack style shelf unit to achieve separation from the ground by containing underneath them a packet of foam. This dampens vibrations and also ensure the thin metal edge of the rack won't scratch or damage the flooring. The foam I used was simply cut up squares of packing foam from Lowes, but any foam will suffice as long as you fit it under the foot. 

I cut 15 layers of this foam, and by time I fully loaded the shelves the feet were hovering roughly 1mm above the floor. The unit slides around well, and does not transmit vibrations to the floor at all. 

To make printing easier, the foot is split into two parts so that each can get more surface area on the build plate. Simply glue together once done. I highly suggest printing these with a 0.8mm nozzle. Not only for speed, but to increase strength as well. PETG would be more ideal than PLA for this application, but either should work fine.