Bi-Directional Ratchet

Flip the rocker back and forth and the fiendish double ratchet mechanism turns the drive wheel continually. An interesting and fun model to download amd make. Members can download the parts for free at the website. You can follow the development of the model on the Workshop Notes blog. There's a video of a late stage prototype here.

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Updated Cam Mechanism Page

Check out this new blog post with information about how cams work with new pictures and animations.

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Member of have free access to all sorts of interesting downloadable projects. All members can download all the models from the show case on the home page as well as all the members only projects in the shop. On top of all these amazing downloads, members have free access to many of the paid projects in the shop. The longer you remain a member, the more shop models you can download for free. All the remaining models in the shop are half price for members. Of course, if you can't wait to get your hands on all the models, projects and downloads or you can buy a membership+ and have full access to everything! is run entirely by the support of members and shoppers on the website. Thanks to everybody who has signed up for a membership! Don't forget that if you are retired or a student you can receive a 33% discount on the annual membership rates! Drop me an email for details. [email protected]

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Broughton Moor
t. 01900 814333