I'm putting this mounting plate in its own category since it's completely different from the other mounting plates. The other ones could dampen vibration to some extent if you use flexible filament. This one has a central spring compared to the other solid designs. This spring is a remix from here: https://www.thingiverse.com/thing:3422278/files, and the base plate is a remix from here: https://www.thingiverse.com/thing:3422219/files. The nut was the original nut from this motor without being remixed. 123D Design was used to modify this design.