£5.00
Reciprocating Rack & Pinion
Reciprocating Rack & Pinion
An Essential Mechanism project made from thin card. At its heart is a pinion gear with teeth missing from half its circumference. As the gear turns, it meshes first with one rack, then the other, alternately lifting and dropping them in a satisfying reciprocating motion. Build this mechanism as a study in pure motion, or as the starting point for your own character-based automata.
The project comes as a downloadable pdf file ready to print out on your own printer. Use colourful card to make a colourful model!Â
Premium members of this site can download the project for free, thank you for your support! Not a member yet? You can still download the parts for £5 or equivalent and join in the fun.Â
