Last week I set up my avx mount but forgot adding the counter weight before starting the goto. I set the telescope directing to Alioth, suddenly the telescope dropped hitting the tripod in the middle of slew.
After that hit, I wasn't able to use PHD2 drift alignment or sharpcap for polar alignment anymore, not sure if it damaged the mount, or it disturbs the Newtonian mirror causing bad collimation and these two polar alignment methods rely on the images.
I was able to use these two polar alignment methods with same setup before this accident, minor adjustment will reflect on the analysis result which leads to an excellent polar alignment result, and guiding within 1'' error. But now when I'm adjusting the knobs, the polar alignment error will jump from one direction to the other, won't be able to narrow it down to small enough.
Equipment: avx + Newtonian (750mm/f5) + oag (asi120mm s) + canon dslr