Marble Machine #1
thingiverse
A recent update has been made to this miniature marble machine, which is laser-cut and hand-cranked. Get the details from http://www.thingiverse.com/thing:148312. For more information such as assembly instructions and kit purchases, visit my blog at http://msraynsford.blogspot.com/2014/01/motor-marble-machine-12.html. It is designed to be made from 3mm MDF with 10mm ball bearings, using M3 x25mm screws and nyloc nuts on all parts.
Download Model from thingiverse
With this file you will be able to print Marble Machine #1 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 Machine #1.