(large) test tube stand (up to 7 test tubes)
thingiverse
Test tube holder supports up to 7 big test tubes (diameter = 30 mm, height = 20 cm). Fusion 360 file is included for changing. I created multiple test tube holders, which can be found here: Version for 7 small tubes: https://www.thingiverse.com/thing:2460058 Version for 7 standard-sized tubes: https://www.thingiverse.com/thing:2719817 Version for a single large tube: https://www.thingiverse.com/thing:2460016 I also made a holder for round-bottom flasks, which can be found here: https://www.thingiverse.com/thing:2413613
With this file you will be able to print (large) test tube stand (up to 7 test tubes) with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on (large) test tube stand (up to 7 test tubes).