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Posted

Hi guys,

I have a rather general question to which I haven't found an answer yet. I have been playing around with a test hairspring before attempting to modify this bent and non-flat model from an Omega 30t2 movement. I understand how to get the spacing right with the 90 degrees etc, but I am at a loss as to how to make the hairspring flat. It doesn't seem to me that there is *one* place to modify, but rather that the last 3-4 coils are distorted. But what do I do in such a case?

thanks in advance for your help,

David

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Posted (edited)

he place to start is the innermost point where the hairspring develops out of the plane, then move outwards from there. If you are lucky, it will be series of recognisable kinks, and not a continuous deformation. In reality, you will have to do some correcting in the round after each flattening adjustment.

Neven's post describes the techniques very well.

Edited by Klassiker

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