Help with screws

Discussion in 'Photography & Video' started by chilloutbuddy, Jun 5, 2008.

  1. chilloutbuddy

    chilloutbuddy Member

    Joined:
    Dec 7, 2007
    Messages:
    4,494
    Location:
    Melbourne
    These two screws came from my zenitar 16mm fisheye.
    [​IMG]

    They're tiny, I've put them next to a coin to give you an idea of the size. Problem is they're both broken and I cant find replacements anywhere. Since Monday I have looked at Jaycar, Bunnings, JB HiFi, all new & used camera stores I know, camera repair centres, 2 jewellers and 3 opticians.

    The accident happened as I was trying to calibrate the lens for infinity focus. No drama, as long as I can find some screws somewhere.
    Any ideas please?
     
  2. BRGMCS

    BRGMCS Member

    Joined:
    Oct 28, 2005
    Messages:
    2,665
    the issue will be getting pointy ones, but if you go into a decent screw place (fnarr!) they should have some grub screws that could be adapted.
    Other alternative is to get a machinist to turn some up for you, some old crusty dude who has been doing it for 100 years would be your best bet :)
     
  3. Deckham

    Deckham Member

    Joined:
    Jan 16, 2005
    Messages:
    6,963
    Location:
    Essendon, Melbourne
    They are grub screws, right?
    Just in case you cant find any anywhere -

    Clamp them in a vice, using padding.
    Cut off the broken bit with a hacksaw.
    Turn the screw vertical, and cut in a screwdriver slot.
    Then just screw them in further then they were.

    Work?
     
  4. bugeyes

    bugeyes Member

    Joined:
    Oct 10, 2002
    Messages:
    2,472
    Location:
    Location:Location:[BNE]
    There pretty tiny, also consider a good model car/aircraft shop, if no go what about contacting the zenitar/place of purchase?
     
  5. Deckham

    Deckham Member

    Joined:
    Jan 16, 2005
    Messages:
    6,963
    Location:
    Essendon, Melbourne
    Could sunglass screws work?
     
  6. phreeky82

    phreeky82 Member

    Joined:
    Dec 10, 2002
    Messages:
    9,494
    Location:
    Townsville
    As BRGMCS said, old crusty dudes who've been doing strange stuff for their entire life are sure to be able to make something.

    Do you have vernier calipers to measure them?
     
  7. OP
    OP
    chilloutbuddy

    chilloutbuddy Member

    Joined:
    Dec 7, 2007
    Messages:
    4,494
    Location:
    Melbourne
    Thanks guys, I didnt think about cutting another screw to size, that would work.

    Bugeyes there is no dealer in Australia for these lenses, it came directly from the only factory that makes them in Belarus via an ebay seller in Canada who places the orders. It takes forever for anything to get posted from Belarus, provided you find someone who speaks English. Even the instructions manual was in Russian :)
     
  8. bugeyes

    bugeyes Member

    Joined:
    Oct 10, 2002
    Messages:
    2,472
    Location:
    Location:Location:[BNE]
    I would still shoot him off an email; you never know he may have spares? They seem like a part that would see a fare bit turnover? Failing that you need to identify the thread size and locate a replacement, cut it to length, grind a point at one end then cut a slot with a jewelers saw.
     
  9. kini_mini

    kini_mini Member

    Joined:
    Sep 28, 2004
    Messages:
    1,811
    If you know anyone in your area who does fencing (as in with foils), they will probably have some grub screws around.

    Grub screws are used to hold the tips of the foils together, they are a huge pain to work with though, keeping a large magnet around works wonders. They might not be the same size, but it's worth a shot :)
     
  10. bugeyes

    bugeyes Member

    Joined:
    Oct 10, 2002
    Messages:
    2,472
    Location:
    Location:Location:[BNE]
    last resort you can send me one and I'll see if I can find a match in my selection from my old RC car days?

    [​IMG]
     
  11. azz

    azz Member

    Joined:
    Nov 23, 2002
    Messages:
    3,862
    Location:
    Heidelberg, Melbourne
    Last edited by a moderator: Jun 7, 2008
  12. v81

    v81 Member

    Joined:
    Jan 31, 2005
    Messages:
    679
    Location:
    SE Vic
    I used to work in the "fastener" industry, specialised in bolts, nuts and other threaded fasteners.

    Still have a few contacts, PM me if you like and we'll see what can be done.
     
  13. doigal

    doigal Member

    Joined:
    Apr 18, 2003
    Messages:
    2,847
    Location:
    Linkoping, Sweden
    List of places i would try:

    Opticians - lots of them.
    RC hobby stores, although most of them look too big
    machining clubs
    Camera places - mabey even try canon/nikon/etc and see if they can help?
     
  14. Iscran

    Iscran Member

    Joined:
    Nov 17, 2006
    Messages:
    635
    Location:
    World Traveller
    there are some store that specialise in (making) screws. You could try them?
     
  15. OP
    OP
    chilloutbuddy

    chilloutbuddy Member

    Joined:
    Dec 7, 2007
    Messages:
    4,494
    Location:
    Melbourne
    Wow thanks guys, I really appreciate it :)

    I'll have a look again tomorrow for a screw making store (never knew they existed) & hobby stores/opticians etc around my area and let you know how I went
     
  16. Iscran

    Iscran Member

    Joined:
    Nov 17, 2006
    Messages:
    635
    Location:
    World Traveller
  17. dawesius

    dawesius Member

    Joined:
    Feb 3, 2007
    Messages:
    241
    Location:
    Newcastle
    Well, someone at a forge/small engineering type place would more than likely know someone with a full set of taps and dies, or the appropriate lathe gear, and the skills to determine the size/pitch of ur broken ones and run you off some new ones.

    Get some spares made out of the same stock, no doubt you or another OCAU tog will need some eventually, you'd be like, the Aussie supplier for them, lol.
     
  18. Aziraphale

    Aziraphale Member

    Joined:
    Jan 5, 2002
    Messages:
    550
    Location:
    Canberra
    Have you tried any fastener specialists like Coventry Fasteners? These guys specialise in all sort of nuts, bolts, screws etc, and there are other suppliers around as well (I just can't think of any others off the top of my head).

    They usually have a shop front you can buy one off orders from.
     
  19. DoCsIs

    DoCsIs Member

    Joined:
    Jan 30, 2002
    Messages:
    1,492
    Location:
    Sydney
    You give me this info my dad can probably make them for you for a small price (mech. engineer, tool and die maker, with CNC lathes etc)
     
    Last edited: Jun 6, 2008
  20. Cererus

    Cererus Member

    Joined:
    Jan 14, 2002
    Messages:
    1,536
    Location:
    ≥∞

Share This Page

Advertisement: