tesla valve display
thingiverse
this was a school assignment the idea is to show small children what resistance is. It is based on the tesla valve from nikola tesla. I recommend gluing the whole thing shut and putting in a somewhat thicker liquid, eg olivia with water. In addition to these parts, you also need a small piece of Plexiglas.
Download Model from thingiverse
With this file you will be able to print tesla valve display 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 tesla valve display.