Motor marble machine 1.2
Yet another update to my first marble machine and this time much faster than the last one. The new design works really well so the only improvement I could think to make was to put a motor on it, saving many ours of tedious winding. The machine runs from a pair of AAA batteries and can be wound even with the motor attached should your batteries run flat. It's the same kit with or without a motor so if you take the motor off afterwards you end up with a normal kit.
This kit is available for purchase through my shop http://msraynsford.myshopify.com/products/marble-machine-1