Crank/Cam : Download and Make

A new essential mechanism to download and make!

Use this mechanism as a starting point for your own designs or as an exercise in pure mechanism.

As the handle turns the light blue centre push rod describes a smooth curve. Meanwhile, the dark blue slider moves up and down at a different speed driven by the cams in the box. This project is ideal as the starting point for a flying character where the arms/wings move at a different speed from the body.

Check out the video on my Instagram feed and on the website. Members can download and make this model for free, thanks for your support!

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Fantastic value at only $30  a year for access to all the downloadable projects on!

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Broughton Moor
t. 01900 814333