Micropipette Carousel

Carousel stand for Nichiryo micropipettes.

This whole project was born out of need and used parts I had lying around and my little workhorse Ender 3, so apologies in advance for ill fitment. The base was originally designed as a hematocrit rotor that failed in execution, but I didn't want to waste the print.
Should go without saying that this is a work in progress!

For the center axis I used a 13" steel rod I had laying around from a Bissell vacuum cleaner brushroll, but any sufficiently rigid metal rod will do. It was an odd diameter but 5/16" rod stock should be usable, you may just need to shim the base to rod fit with tape (this will be epoxied together anyway, see assembly instructions below).

For the top I made an icosahedron to resemble a capsid (which serves as a convenient "handle" to move the carousel around), and to cover the bare metal I created sleeves with an i.d. to match the rod's o.d. The sleeves also serve to keep the bottom and middle sections of the ca