50 ml (and 15 ml) conical tube rack

thingiverse

This is a rack designed to hold 50 ml conical centrifuge tubes, with spaces in between for 15 ml conicals as well. This is part of my printable labware collection, which aims to achieve several key objectives: * They must be functional * They should use minimal plastic, making them quick and affordable to manufacture * They require little to no supports during the printing process * They take up as little bench space as possible * They can be easily customized or combined with other related designs to create unique labware Note that the 'v3' version of this design (which features four supports instead of three inside each 50 ml holder) tends to print more smoothly, thanks to greater contact with the build platform. This rack was created by duplicating a single [50 ml conical tube holder model](https://www.thingiverse.com/thing:3324289), then incorporating the 'hole' and base for the 15 ml tubes from [this complementary model](https://www.thingiverse.com/thing:3324299).