On Fri, Jul 30, 2021 at 06:36 AM, <pcboreland@...> wrote:
I'm hard pressed to see the larger periodic error being ?associated with the worm. You might be looking in the wrong place. May I suggest you change the the thrust beings. I would recommend buying them from McMaster, not Losmandy.
The largest component of my PE is 480s, which is exactly the worm rotation period, so it must be something with the worm.
Before doing lapping with diamond paste, I think I will start with natural polishing - crank up the sidereal speed of Onstep to 100x and run the mount like this for a few hours.?
BTW, the main issue is not really the PE itself:? +-8 for 480s worm period is like +-4 for 240s period of G11 and guiding should be able to correct such slow-moving errors.
The main issue is that there is a lot of noise and spikes in the guiding graph and lapping should smooth things out.
