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Unbreakable leg spring for Workmate (no TPU needed) — image 1
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Unbreakable leg spring for Workmate (no TPU needed)

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After some iterations I arrived at a shape that should hold forever regardless of material.

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It is very annoying when these springs are broken so I printed different designs but I kept having problems.

Here's why I called this design "unbreakable".

When the original broke…

I was very happy i had a 3D printer. But the printed models didn't last even though I kept reinforcing the prints. 

One day I realized that the part of this shape that is the source of the most of the tension — the arch —  serves no purpose at all. So I found an editable model (see the Model origin below) and reshaped the arch of the spring. Now, there's very little tension when the leg is locking in either position (extended or folded down) so I expect this new spring to last "forever".

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