Marble Roller Machine
youmagine
I stumbled upon a picture of a marble machine years ago and was finally motivated to try building my own. As expected, it took some time to get the mechanism right. I had to remake the cup and adjust the pivot point several times before I succeeded in getting it working as shown in the video. I built mine from wood but I've included all the STL files so you can attempt to 3D print your own. You'll need to source your own 9/16" marbles, which are available for purchase on Amazon: https://www.amazon.com/Marbles-Set-9-16-Inch/dp/B00005N5V8 Build instructions for this project can be found here: 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.