Test Tube holder for 3cm x 10 cm test tubes

pinshape

This was created to hold test tubes that are 3 cm wide and approximately 10 cm tall. It will accommodate both flat-bottom and rounded-bottom tubes because there is a recess at the bottom for each one. The design features two separate parts, ensuring no supports are required during printing. The hollow legs on top allow the solid legs of the bottom piece to fit snugly in place. I filled the hollow legs with Gorilla Glue's "Clear Grip" adhesive before inserting the solid legs. These test tubes are being used in high school science classes and are performing exceptionally well under heavy use.