Can be bad alignment . Try a drift align in PHD2 , adjust, and then try again.
Also cone error if your optical axis is not on the mount axis or loose puck.
Did the calibration work ok and have you changed anything since?
Quote:
Originally Posted by jase.film
I am jumping up from guiding on a star adventurer pro to an NEQ6 pro (second hand). I tried it out for the first time last night.
I'm using EQmod and guiding in PHD2 (pulse guiding.)
The graph started out looking fine for about a minute but then suddenly it blows out to 12". It keeps doing this and I have no idea why.
I'm hoping someone here might be able to point me in the right direction of what's going on here. Nothing was snagged - I also tried it by guiding with ST4 and had the same problem.
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