Marble Exercising Machine - Overview

Don't want to lose your marbles? Then keep them fit and happy with this Marble Exercising Machine!

Before we start, a few cautions. Firstly, this is a 'large' model consuming about 5kg of filament (including supports), and takes about 50 days (yes, days!) of continuous printing on the Ultimaker 3 (which is not renowned for speed). Secondly, it needs a dual extruder printer that can print dissolvable support material (PVA on the Ultimaker) and can co-print a flexible and a rigid filament - I used TPU95A and ABS on the Ultimaker. Thirdly, whilst I started with the intention of keeping the print area to 150x150mm, some items have strayed over this size. Fourthly, the model has exposed moving parts which present a trap hazard, and contains small parts which could be swallowed, so care needs to be taken if children or pets are present.

The model is designed in a 'Heath-Robinson' manner, so simplicity was not a goal. Since everything needs bells and whistles, it is complete with a bell