Prusa MK4 Foam Feet

Along the same lines as the foam feet under the 3018XL plotter, the MK4 now has a bit of vibration isolation:

I’d stuck four exercise mat tabs (scraps of a flooring project) under the feet, but the loading was much too high:

It was really an excuse for some non-critical cutting with the 3 inch lens in the laser cutter:

The foam cut nicely, albeit with a 1.3 mm kerf, and the chipboard & plywood seemed about the same. They’re 30 mm square and, should they flatten out, I have enough foam scraps for a larger set.

Unlike the 3018 feet, my deflicted ears can’t tell the difference with these place, so I assume a standard MK4 squash-ball foot upgrade isn’t worth the filament.