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Thread: Manufacturing my own pair of frames

  1. #1
    OptiBoard Novice
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    Manufacturing my own pair of frames

    Hi all, I am currently undertaking my final year of university.

    I have been studying the industry for the last year or so and currently my project involves the manufacturing of eyewear frames in-house using 3d printing as well as investment casting.

    I've designed a pair of sunglasses with 6base head curvature and have sourced lenses.

    Now the frames will be somewhat thick (3-4mm) and will be made out of sterling silver �� (more-so statement piece)

    The "problem" I'm having is that it's quite difficult to snap lenses into metal frames hence why eyewire screws are used within the metal frame ecosystem.

    Now my enquiry is - is it sensible/okay to design metal frames with tight and smart tolerances as to avoid needing to split the frame and incorporate screws into the design.

    I'd imagine chamfering the rear of the frame to create a sliding slope, though my local optometrist insists that all metal frames require eyewire screws.

    I could have sworn I've seen metal frames that are screwless?

    Thank you

  2. #2
    OptiWizard
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    There are some metal frames that are screw less but the lenses that are used are not standard lens material they are very thin and flexible and do not meet the impact resistance required in some countries. It is impractical to produce a metal frame that does not have an open eyewire. You could design something that uses an adhesive to hold the lens in place. That has been done before.

  3. #3
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    Not sure if this is an appropriate solution, but I seem to recall seeing a Cartier frame that had no split in the metal. It had a set screw that pressed into the lens and eyewire looked more like "" than "V" on the bottom quarter. Again, not sure if this is appropriate or even wise, just a thought I had.

  4. #4
    Master OptiBoarder LENNY's Avatar
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    You can snap in poly lenses... I do this all the time with horn eyewear. And Stark used to have a system mentioned above, but that was the biggest headache

  5. #5
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    Quote Originally Posted by LENNY View Post
    You can snap in poly lenses... I do this all the time with horn eyewear. And Stark used to have a system mentioned above, but that was the biggest headache
    The system mentioned above does seem like a headache haha, I have CR39 lenses (2mm thick) so it'll seem ill have to incorporate a screw system into the design - which is fine.

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