One needs to think of better resolution here. How about a mirror galvanometer?
http://www.ebay.com/itm/Leeds-Northrup-Mirror-Galvanometer-/121086073505?pt=LH_DefaultDomain_0&hash=item1c314adaa1 http://www.ebay.com/itm/Cambridge-Technology-6810P-517-Moving-Magnet-Optical-Scanner-Galvanometer-/190766443040?pt=LH_DefaultDomain_0&hash=item2c6a90ea20 Or, scrap an old hard drive and use the linear motor from the head servo. http://www.youtube.com/watch?v=qPX6Sfj8YKw Bob L. ________________________________ From: Chris Albertson <albertson.ch...@gmail.com> To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Sent: Tue, April 2, 2013 3:54:23 PM Subject: Re: [time-nuts] Time shown as two horizontal bars ... if all that is needed is a moving dot, A laser pointer glued to the shaft of a stepper motor would work and be even simpler... _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
