large format focal plane shutter curtain care

Discussion in 'Antiques and Collecting' started by spoolman, Sep 7, 2010.

  1. spoolman

    spoolman Subscriber

    Messages:
    407
    Joined:
    Sep 7, 2007
    Location:
    Toronto Onta
    Shooter:
    Med. Format Pan
    I've recently purchased a Folmer and Schwing #3A Graflex that has a focal plane shutter.I'm wondering what steps I should take and what materials to use to keep this curtain in good operating condition.

    Thanks,

    Doug:smile:
     
  2. juan

    juan Subscriber

    Messages:
    1,735
    Joined:
    May 7, 2003
    Location:
    St. Simons I
    Shooter:
    Multi Format
    Go over to graflex.org, register, and look through the help threads. Those folks are the experts. If you don't see what you're looking for, ask them. They are very helpful.
    juan
     
  3. Sirius Glass

    Sirius Glass Subscriber

    Messages:
    20,314
    Joined:
    Jan 18, 2007
    Location:
    Southern California
    Shooter:
    Multi Format
    I am working on an article on repairing Graflex and Graphic focal plane shutters.

    Steve
     
  4. spoolman

    spoolman Subscriber

    Messages:
    407
    Joined:
    Sep 7, 2007
    Location:
    Toronto Onta
    Shooter:
    Med. Format Pan
    Hello Juan:Thanks for the info.Im heading overthere in a half an hour.

    Doug:smile:
     
  5. spoolman

    spoolman Subscriber

    Messages:
    407
    Joined:
    Sep 7, 2007
    Location:
    Toronto Onta
    Shooter:
    Med. Format Pan
    Steve: Thats great.I'll be looking for when you're done.

    Doug
     
  6. fotch

    fotch Member

    Messages:
    4,824
    Joined:
    Mar 16, 2005
    Location:
    SE WI- USA
    Shooter:
    Multi Format
    Steve, where will you publish or release the info and when do you expect to be finished?
     
  7. Sirius Glass

    Sirius Glass Subscriber

    Messages:
    20,314
    Joined:
    Jan 18, 2007
    Location:
    Southern California
    Shooter:
    Multi Format
    I would like to post it on APUG, graflex.org and largeformatphotography.info.

    Steve
     
  8. jnanian

    jnanian Advertiser Advertiser

    Messages:
    19,622
    Joined:
    Jun 21, 2003
    Location:
    local
    Shooter:
    Multi Format
    steve

    do you have experience repairing these cameras ?

    john
     
  9. Sirius Glass

    Sirius Glass Subscriber

    Messages:
    20,314
    Joined:
    Jan 18, 2007
    Location:
    Southern California
    Shooter:
    Multi Format
    I am corresponding with Bert Saunders and following his instructions. I have been collecting and editing everything he writes. I have patched the curtain, adjusted the tension and now I am working on getting the "O" aperture centered. The pin in the H level is part way out but it will not move. When I have completed the repair and I am sure the instructions are both correct and clear, I will ask Bert to read and correct it before posting.

    Steve
     
  10. jnanian

    jnanian Advertiser Advertiser

    Messages:
    19,622
    Joined:
    Jun 21, 2003
    Location:
    local
    Shooter:
    Multi Format


    if you are in bert's hands, you are in good hands !

    good luck with your article !
    john
     
  11. jon koss

    jon koss Subscriber

    Messages:
    675
    Joined:
    Sep 4, 2004
    Location:
    Boston, MA
    Shooter:
    35mm
    Serious question, Steve - are you sure you are tapping the pin in the correct direction?

    J


     
  12. Sirius Glass

    Sirius Glass Subscriber

    Messages:
    20,314
    Joined:
    Jan 18, 2007
    Location:
    Southern California
    Shooter:
    Multi Format
    The pin came out after I put WD-40 on it to soak in for 24 hours. Today I found that the trigger-mirror-shutter linkage is not always working and that the H lever wobbles. I am waiting to hear from Bert before I decide to tape the pin in further or make another adjustment first.

    Steve
     
  13. Ian Grant

    Ian Grant Subscriber

    Messages:
    17,825
    Joined:
    Aug 2, 2004
    Location:
    West Midland
    Shooter:
    Multi Format
    Tomosy has a good section on repairing Focal plane shutters in his Camera Restoration/repair book. I found it after I'd successfully restored a pre-Anniversary shutter.

    Ian
     
  14. jon koss

    jon koss Subscriber

    Messages:
    675
    Joined:
    Sep 4, 2004
    Location:
    Boston, MA
    Shooter:
    35mm
    Hi Steve - The pins need to be well-seated for sure. Make sure everything is clean and free of burrs. If your pins did not survive the extraction process intact, then you may get play in the mechanism. This is not good because it will greatly accelerate wear, and of course, the dang thing will not fire reliably. If you are worried about your pins, please drop a PM. I purchased a bunch of pins a while back and I could probably dig them up with enough time and encouragement.

    Good luck,
    Jon

     
  15. waynecrider

    waynecrider Member

    Messages:
    2,294
    Joined:
    Feb 8, 2003
    Location:
    Floriduh
    Shooter:
    35mm
    Has anyone found curtain material that will work? Last I read a few years back was that there was something out of Japan I believe, but I think the thickness was a little more then what was used in the OEM stuff.
     
  16. jon koss

    jon koss Subscriber

    Messages:
    675
    Joined:
    Sep 4, 2004
    Location:
    Boston, MA
    Shooter:
    35mm
    Hi Wayne - The Japanese material was offered by one Aki-Asahi at aki-asahi.com. I found the thickness to be no problem. I measured it myself and it was extremely close in thickness to the Graflex fabric in my camera. If memory serves both were bang-on at 0.008 inches. The actual avoirdupois weight per area of the Aki-Asahi (AA) was greater than the Graflex stuff, but that did not create any problems. In short, it works.

    I believe there are now two varieties of AA material. One is rubber-coated fabric and the other is a sandwich with fabric on the outside and rubber in the middle. I am only guessing that the tri-layer is thicker than the bi-layer but this is pure speculation - I have never handled the tri-layer.

    Incidentally, the AA fabric oozes quality and happens to be gorgeous. It drapes beautifully, has bombproof opacity and is possessed of a lovely hand as well.

    Hope that helps a bit.

    Jon



     
    Last edited by a moderator: Oct 3, 2010