gene heskett wrote: > On Sunday, June 03, 2012 03:06:54 PM dave did opine: > > >> Any chance of collimating the LED's by putting a slit in front of them? >> >> > Placing the slit would be an exercise in precision I haven't mastered. I got a nearly lifetime supply of beam-break sensors out of scrapped floppy drives. The ones for track zero sensing had slits molded into the plastic and would be good for this. If you have any scrap floppy drives around you might check for suitable sensors.
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