15/50 ml Conical Test Tube Stand

This stand fits both small (15 ml) and big (50 ml) test tubes with screw caps and a conical base (falcon tube). It is much lighter than many commercial holders, which makes it especially suited for accurately measuring out compounds using a lab weight scale, since these have a limited capacity. However, this comes at a cost of stability, so use with caution. They can be printed without supports!

Source code (.stp & .3dm) is also provided, should you want to modify the design for your own purpose. Please share your prints!