I have the following configuration: home made dome with a diameter of 3.02m, Arduino driver from Scopdome, Ioptron cem 120 mount, Askar 185 telescope… from the zero position of the dome it moves in any direction with an accuracy of + or – 3 minutes… the problem occurs when synchronizing with the telescope: if I enter the measured geometric data and do not enter the GEM value = 0 (the measured one is 361mm) the dome moves from position 0 around 22° also even if in position 0 it is centered on the shutter (width is 700mmm) the telescope stops at the edge of the shutter with small differences depending on the x and y values entered… it is probably a geometry problem but I can’t figure out where I am wrong. Does anyone have an idea that could help me?
Please read this manual:
