Quote:
Originally Posted by Escortitis
I have yet been able to get figures that work. I was setting it up for a 12" truss, everything went great, even using a router to make those radius' become quite simple with practice, it ran very smoothly on the runners, it's rotation however, had very little to do with that of the earth, or where i was standing.
I still have the main components of this mount, and if someone knows a different method of getting the right figures for those radii's, i would love to hear.
George.  |
Hi George,
Are you sure that the problem is not simply polar alignment?
Most platforms should be adjustable within say 5 degrees of their intended usage lattitude, so if the platform is rotating smoothly at the right RA rate, the rotational axis should be able to be pointed at the pole by adjusting the position of the platform base. Or, to put it another way, you should be able to correct for all but the most gross building errors by adjustments.
I found that drawing the various axes and radii on a full size piece of cardboard gave me the clearest picture of what I was doing when I built mine.
Regards,
David.