• @Gordon I have sent them an email, I really hope they can help me. Of course, it's a good point with the O's etc..
    It is aluminium. 2mm thick.

    I think your suggestion with the Dremel sounds like the best option if they're unable to help me at Schaeffer.

    @allObjects I will mount a custom made PCB behind it so I really need it to shine through. One option I do consider is to perforate with holes along the letters. Just drill holes at a set interval.
    Not sure how pretty it would be though...

    PS: the thing is 28 by 28 centimeters.

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