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  1. What are the main issues?

    What are the main issues?
  2. Thread: Ansi

    by PRECISIONLAB
    Replies
    4
    Views
    395

    The Vision Council Announces Publication of ANSI...

    The Vision Council Announces Publication of ANSI Z80.1-2020 Prescription Ophthalmic Lenses - Recommendations | The Vision Council

    ANSI_Z80-1-2020_QuickReferenceGuide.pdf (thevisioncouncil.org)
  3. Replies
    7
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    612

    I'm guessing the doctor is requesting OD for...

    I'm guessing the doctor is requesting OD for slab-off in order to balance thickness.

    Reverse slab-off precast blanks require a special ring for blocking which your lab may not have nor experience...
  4. Replies
    4
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    851

    Induced power as you described as .12 is typical...

    Induced power as you described as .12 is typical if lens power is a strong plus as thickness will result in magnification.

    Also, since it seems the progressive is "squeezed" into frame the...
  5. Before opening my wholesale lab I was in retail...

    Before opening my wholesale lab I was in retail and was the frame buyer.

    From my experience I realized not all frames are manufactured with the same quality standard as others. Check for eyewire...
  6. Replies
    9
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    977

    The thin layer of transitions has separated. My...

    The thin layer of transitions has separated. My guess is that lenses are not a true Transitions product. I used a finished poly chromatic from a supplier and had similar failures within a year. Lab...
  7. Replies
    6
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    706

    I'm a remnant of the late 70's Coburn 108...

    I'm a remnant of the late 70's Coburn 108 generator days. I used a caliper to determine center thickness via edge thickness around various points on the block. Prism either ground for decentration or...
  8. This might be a possible solution. Perhaps modify...

    This might be a possible solution. Perhaps modify tip to secure on frame/temple piece

    Nose Pad Popping Plier – MicroTool Model #8032 – Western Optical Supply, Inc.
  9. Yes flex half eye blocks Precision Tool Tech...

    Yes flex half eye blocks

    Precision Tool Tech Optical Products 2018

    pg 46
  10. What type of blocker / edger set up do you have?...

    What type of blocker / edger set up do you have?

    Geometric center blocking works best and set edger to decenter. Bevel placement is greatly improved. Where it gets tricky is making sure block and...
  11. Replies
    2
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    425

    You must first spot the distance similar to the...

    You must first spot the distance similar to the way you would a single vision. If it is a sphere only then the OC must be aligned based on inset.

    Use markings for cylinder axis reference and align...
  12. Replies
    13
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    833

    To remove lap table first remove the allen bolt...

    To remove lap table first remove the allen bolt collar on to the table. Next use a "jack bolt" and screw into top of table and tighten until the lap table breaks loose. It's usually a 10mm similar to...
  13. Replies
    1
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    431

    When edging poly the initial roughing cycle must...

    When edging poly the initial roughing cycle must run dry with just a small amount of water running from the back nozzle to clear swarf. As the cycle continues establishing the bevel, this part of the...
  14. Replies
    2
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    551

    Advanced Opticians Tutorial (ABO Advanced Exam) –...

    Advanced Opticians Tutorial (ABO Advanced Exam) – NAO

    Optical Formulas Tutorial: 9780750675048: Medicine & Health Science Books @ Amazon.com
  15. Replies
    13
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    1,112

    Actually it is a myodisc. The base curve is...

    Actually it is a myodisc. The base curve is obviously minus with the back base toric and cross curves minus as well. The outer perimeter curve on the back side is convex (plus) to reduce edge...
  16. Replies
    2
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    820

    When asking about RPM do you mean actual lens...

    When asking about RPM do you mean actual lens speed or cycle time?

    As a previous Coburn SL2 generator owner I would have to estimate lens RPM @ 2500. The RPM will vary based on material and...
  17. Replies
    5
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    826

    Glad you sorted it all out

    Glad you sorted it all out
  18. Replies
    5
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    826

    Check ribbon cable connections @ both keypad assy...

    Check ribbon cable connections @ both keypad assy and CPU to make sure it is seated in.

    I did have to replace keypad assy once on an my 7E so not that uncommon

    DAC Technologies has the part...
  19. Replies
    4
    Views
    637

    The common cause of poly lens frosting is due to...

    The common cause of poly lens frosting is due to uncoated material being cleaned with a solvent solution.

    The lens must be tinted prior to tinting. I you are applying a secondary hard coat check...
  20. Replies
    10
    Views
    1,900

    The cables pictured are RS 232 to ethernet. The...

    The cables pictured are RS 232 to ethernet. The large portion of the cables connect to the WECO machines. The ethernet end must have been connected to a network switch. It depends on how old the...
  21. Replies
    10
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    1,900

    Weco does require a a special network card to...

    Weco does require a a special network card to translate information to OMA compliant files. EE 41 means it is not communicating with edger.

    If you are wanting to run as a stand alone you must set...
  22. Replies
    4
    Views
    1,208

    The -0.50 induced cylinder due to panto will be...

    The -0.50 induced cylinder due to panto will be increase power primarily towards the 180.

    Since Rx cylinder axis is true oblique, take half cylinder amount of induced -0.25 and half of the...
  23. Minus base curve blocks (block itself is convex)...

    Minus base curve blocks (block itself is convex) is similar to the one I use on a step one blocker for minus base lenes.

    See page 85 of Precision Tool catalog as you may have to use a specifically...
  24. Replies
    6
    Views
    3,628

    Nose Pad Inserting Plier – MicroTool Model #8031...

    Nose Pad Inserting Plier – MicroTool Model #8031 – Western Optical Supply, Inc.

    Possible solution
  25. Replies
    10
    Views
    1,900

    any luck fixing?

    any luck fixing?
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