Moderators: Dave Moll, Andrew Davie, Steve Anderson
M3DVQ wrote:This is where a laser on a CNC machine would be handy
Dave Moll wrote:Some packs of CDs/DVDs come with a dummy (transparent) one on top of the stack. Perhaps one could apply an opaque layer (e.g. paint) to one side of it and make "pinholes" in just that layer. It might even work with a real disc if you pierce both the added layer and the foil.
gary wrote:It's not obvious to me how it would be any easier to pierce just the foil/opaque material accurately than it is the entire disk, in fact I can't think of a way it would be done.
DrZarkov wrote:If there is a need to make it small, but fully functional with the NBTV standard, why not make a disc with say 4 or 6 aperture, and use a second disc with masks, like it was done with the 180 lines Nipkow-discs? That would avoid the need of microscopic pinholes.
harry dalek wrote:when i made my first nipkow i used to put a large pin over a candle and heat it then i would pierce a record nothing to do with the above but it jogged my memory...think was easier than drilling as i recall...bit stinky but !
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