Centrifuge Insert for 15 mL Centrifuge Tubes

This is an insert that allows 15 mL centrifuge tubes to be used in most benchtop centrifuges. Most of the Eppendorf branded centrifuges I've encountered only come with inserts for 50 mL tubes, so it was necessary to create something to use the smaller tubes as well.

The inserts pictured are printed in ABS with 35% infill and no support. They have held up very well to repeated use. Make sure you use the exact same print settings if creating multiple inserts in order to keep your centrifuge balanced.