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Double Crank

Double Crank mechanism to download and make. Find out how cranks work and use the mechanism as a starting point for your own designs. 

See workshop notes for full details and construction instructions.

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Ratchet

A working paper ratchet ratchet mechanism to download and make. Find out how mechanisms work by making your own!

Full details and instructions for construction can be seen in Workshop Notes. 

£2.50

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Crank Mechanism

A working crank mechanism to download and make. Learn about mechanisms first hand!

Find out more details and see the instructions for construction in Workshop Notes. 

£2.50 Add to Cart

Quick Return Mechanism

Quick return mechanism to download and make. Learn how mechanisms work first hand with this interesting model.

More details and instructions for construction are available on Workshop Notes

£2.50 Purchase Interchangeable Cam

Interchangeable Cam

Downloadable interchangeable cam model. Build the model and learn first-hand how cams work! 

Full details and instructions for construction are in Workshop Notes.

£2.50

Marble Run

Please visit the New Page for this project.

£2.50

Bevel

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£2.50

Gears

 Please visit the New Page for this project.