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  1. #1

    Join Date
    Oct 2008
    Shooter
    Medium Format
    Posts
    4

    Isolette III Film advance screw...parts

    Hi,

    Just found you guys and have a question..

    I have an Agfa Isolette III and I stupidly snapped off the screw that holds the film advance knob on.

    I was taking the top off to do some cleaning..the screw was tight, started turning...snap.

    I have two issues...one: a source for a new screw. Hopefully, the exact screw for the sake of staying vintage.

    Second: Drilling out the shaft of the old screw...

    I spose I plan on putting a few drops of penetrating oil into the screwhole where the broken screw rests and letting that soak for a few days.

    Then, with a very small drill bit, getting a starter hole going in the screw shaft...

    After that???

    Using a backwards screw puller? Not sure if they make those small enough for this...or, figuring a way to get hold of the screw to get it to turn. there is no wa I can see to get a dremel in there to create new slot on the top of the screw shaft.

    Any help on this would greatly appreciated.

    One more thing actually..I'm considering doing a bellows replacement..any sources for well made, well fitted bellows for an Isolette III?

    Thanks all..

    Dave

  2. #2

    Join Date
    Jun 2008
    Location
    Washington County, Maine
    Shooter
    35mm
    Posts
    9
    Hello....

    If you can find a small enough left hand twist drill it may back the screw out. They make very small left hand bits. A gunsmith may be able to help you. Hope his will help.

  3. #3

    Join Date
    Mar 2005
    Location
    Flushing, Michigan
    Shooter
    Medium Format
    Posts
    24
    I've done the same thing, myself. After drilling out the hole to accommodate an oversize screw, I was quite surprised to find that the screw had left-hand threads.

  4. #4

    Join Date
    Jan 2006
    Location
    Thunder Bay, Ontario, Canada
    Shooter
    Multi Format
    Posts
    1,565
    Images
    47
    drill it out, tap it oversize (slightly) and use a new screw. A gunsmith is a good idea if you have never drilled and tapped a small hole before. You can probably do it yourself. I don't think you need the fine thread taps a gunsmith uses (48 tpi). It's probably a good idea to drill it out in a drill press with the part clamped down so the drill doesn't walk and mess up the hole.
    Rick Jason.
    "I'm still developing"



 

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