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  1. #31
    Registered user. RJSoftware's Avatar
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    Default Re: Why is this hairspring off center? (By: Rob P.)

    Yep.

    Quote Originally Posted by Rob P. View Post
    Unless the difference is the direction of the coils or location of the roller jewel, what I would assume, for flat springs with no overcoil, is that the pinning point on the collet should be perpendicular to the final pinning point on the stud. Which point (90 or 270) on that perpendicular line probably depends on who designed the movement more than anythign else.

    I think we're jumping ahead of ourselves here. At this point all we know is that the HS is deformed.
    The bitter the challenge, the juicy the conquest.
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  2. #32
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    Default Re: Why is this hairspring off center? (By: Rob P.)

    Quote Originally Posted by Rob P. View Post
    Unless the difference is the direction of the coils or location of the roller jewel, what I would assume, for flat springs with no overcoil, is that the pinning point on the collet should be perpendicular to the final pinning point on the stud. Which point (90 or 270) on that perpendicular line probably depends on who designed the movement more than anythign else.

    I think we're jumping ahead of ourselves here. At this point all we know is that the HS is deformed.
    That's true. I think I was overly pessimistic about the spring not having enough space, looks like it could fit just fine.

    The discussion turned into more of a theoretical one. Nonetheless, I think it's important to know all the aspects of why a hairspring works like it does before adjusting it. It doesn't answer the OPs question but it adds to the context.

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