Pent Do Nothing Machine (5-Way)

thingiverse

A 5-Way "Do-Nothing-Machine" based on the Trammel of Archimedes. The handle design prevents the system from jamming. I built full scale (in Yellow), and a couple at half scale. The half-scale units are a bit sticky and the handles are weak, but they work. These were built on the da Vinci Mini. Overview and Background Lesson Plan and Activity Use it for many different subjects Note: This design is in INCHES. Scale up 25.4x to convert it to mm. https://www.kidzsearch.com/kidztube/trammel-of-archimedes-do-nothing-machine-part-2-homemade-science-with-bruce-yeany_9af50fe22.html Do nothing machine, Trammel of Archimedes, they've gone by all sorts of names, when used for drawing it's an ellipsograph. It is an interesting piece that shows how circular motion consists of two sinusoidal oscillations. On the practical side it has commonly been used for drawing out ovals for picture frames. Materials Needed Pencil/Pen/Marker to create ellipse/oval.