Posted by Roy Hughes at 16:55 on 2011 Jul 15
Back in the 1960s we all made clockwork equatorial camera mountings out of the elderly (even then) clockwork time switches available on the surplus market.Googling around I found an old page of Maurice Gavin’s version at:home.freeuk.com/m.gavin/tracker.htmI don’t know where you would get the clockwork time switch these days but it might give you some scope for lateral thinking.Roy