Continuing investigation of the erratic Dec motion.
Still witnessing issues with erratic Dec motion. (The plotted RA drift is less than an arcsecond/minute.)
An issue was found with SiTech pointing when absolute encoder values deviated too far from the brushless servo motor encoder values. The deviation was built up by manual operation of the mount, e.g. when balancing. A process is in place to ensure these values are sync’d on startup.
The new filter wheel for the flipped optical path for use with the QHY290 camera was installed. It’s a Starlight Xpress USB that was ordered with two carousels. The current carousel has the original 50mm round Sloan filters plus luminosity and H-alpha. The PL16803 with its new air cooled system was also installed.