Marble Roller Machine
grabcad
A photo of a marble machine inspired me to create my own version, which turned out to be quite challenging in terms of designing the mechanism. I had to remake the cup and adjust the pivot point before it worked correctly, as demonstrated in the video. My model is made from wood, but all STL files are included for those who want to print their own. Don't forget to buy 9/16" marbles separately. You can find similar marble machines on Amazon (http://amzn.to/2ClyTrw), and the build instructions are available at Instructables (https://www.instructables.com/id/Wooden-Marble-Roller-Machine/).
With this file you will be able to print Marble Roller Machine 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 Marble Roller Machine.