10-Slot Propagation Station – 2 x 5

This simple propagation station holds up to 10 test tubes. The holes are 1.1", so it can accommodate most test tubes labelled 1 inch OD, or 25 mm OD. This was designed for simple, fast printing, while maintaining a minimalistic design aesthetic. The inner shelf has filets to add to strength.

Prints with supports just to get a slightly rounder hole. I bet it can print without supports if you so choose.