New much improved version out!! Check it out!. PrintrShock 2 universal http://www.thingiverse.com/thing:1391749

Shock absorbers for 3d printers Made for my printrbot simple metal and these feets: http://www.thingiverse.com/thing:1273512

The top is 35mm - 20mm with 1 4,5mm hole 5mm from the edge if you like to screw in table ;)

Make shure to show off your make if you print this :) But make your own feets for your printer or if your printer has a flat bottom.. it works perfekt,,

On printrbot simple there might be a issue if you have the spool hanging in the Z tower.. I tried that and the weight shifts alot to that side and the whole printer leans..

So a external filament holder is to prefer.. will draw one up soon..

UPDATES New version of PrintrShock published. See top of desctiption. Uploaded .Step files