Schohl Crystal Cutting Machine

Discussion in 'Horological Tools' started by Craig Niemann, Apr 29, 2017.

  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  1. Craig Niemann

    Craig Niemann Registered User
    NAWCC Member

    Sep 15, 2011
    16
    0
    0
    Does anyone know where I could get operating instructions for this machine.

    Thanks,
    Craig
     
  2. karlmansson

    karlmansson Registered User

    Apr 20, 2013
    1,949
    4
    38
    Doctor
    Linköping, Sweden
    Country Flag:
  3. Craig Niemann

    Craig Niemann Registered User
    NAWCC Member

    Sep 15, 2011
    16
    0
    0
    No. It is like one that sold on eBay on 4/23/17. If you type in Schohl Crystal Cutting Machine and then look at sold listings it will come up. I'll try to take some pictures if I can remember how. The unit that sold had a model number of C USP5.325.840. Mine says B PAT.PEND. which probably means it was made before 1994 when the patent was granted.
     
  4. Firegriff

    Firegriff Registered User
    Donor

    Feb 22, 2013
    564
    1
    18
    I hope it came with all the parts for that price.
     
  5. Craig Niemann

    Craig Niemann Registered User
    NAWCC Member

    Sep 15, 2011
    16
    0
    0
  6. karlmansson

    karlmansson Registered User

    Apr 20, 2013
    1,949
    4
    38
    Doctor
    Linköping, Sweden
    Country Flag:
    Sorry, don't know. I have a much older tool that is for cutting flat Crystals from acetate sheets. It resembles part of this machine.

    I can't really shake the idea that one on the arms is a follower for the other. There doesn't seem to be a way of setting the diameter for the crystal to be cut. But if the two arms are linked you could mount the bezel or case on one side and have the other side cut a crystal to size by the rounded tip following the crystal recess. Just a thought.
     
  7. Dave Coatsworth

    Dave Coatsworth Super Moderator
    Donor NAWCC Member

    Feb 11, 2005
    3,993
    6
    38
    Camarillo, CA
    Country Flag:
    Region Flag:
    I believe Karl's description is exactly how it works. You mount the bezel on one side and it cuts an accurate reproduction out of acetate on the other side.
     
  8. Dushan Grujich

    Dushan Grujich Registered User

    Jun 20, 2003
    479
    1
    18
    Watchmaker
    Bondi
    Country Flag:
    Region Flag:
    G'Day!

    There is no question about it, that is exactly how it is supposed to work. A design advancement over the older type of hand operated tool.

    Even the newer machines for cutting mineral glass follow the same principle, except that cutting is replaced by grinding using one of diamond impregnated wheels mounted in stack. Either a bezel, or a template, is mounted on a side which the machine will follow the shape of, circular or shaped, while grinding the blank, shaping it quickly and reducing it in size. During grinding process glass is cooled by a stream of water.

    Opticians use machines based on the same principle for shaping glass lenses for spectacles, although the newest ones are microprocessor controlled.

    Cheers

    Dushan
     
Loading...
Similar Threads - Schohl Crystal Cutting Forum Date
Bergeon 30402 question (balance screw cutting tool) Horological Tools Apr 12, 2017
Crystal cutter? How do I use it? Horological Tools Dec 11, 2016
Glass (crystal) press question Horological Tools Nov 27, 2016
Germanow-Simon Watch Crystal Fitting Hand Press Set Complete Horological Tools May 28, 2015
crystal lifts Horological Tools Jan 10, 2014

Share This Page