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Need help creating a flat spiral (mainspring)


SMaric

Hi

Am having trouble figuring out how to create a flat spiral wire

Imagine a 0.2mm diameter wire poking through the middle of a circulate plate

Wire bends over 90deg to lay flat on plate

Wire then needs to spiral outwards pitch ~2mm until reaches outside edge of flat plate

 

Hope this is clear

Any help greatly appreciated

 

 

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