Here is may latest frequency plot from last night.? 125:1 gearbox. No PEC. Old thrust bearings.
In the first attached image we see the movement of the worm over almost 4 hrs.?
In the second image we see the raw frequency response. The p-p of the 80s bearing error is down massively to 1.2 arc-sec, from an earlier posting. I changed over to using a single pressure washer that compresses the ball bearings. The 240s error p-p is 2.6 arc-sec, and the 2600s error is a massive 5.8 arc-sec. I've not see this error so well defined before on shorter guiding runs. I believe this error is due to the roller bearings (either thrust or the needle bearings). I still have my original Losmandy thrust bearings in place, but will be changing over to the McMaster-Carr one this weekend.
The third? image shows the impact of guiding. The 2600s error is gone. The 80s error is now p-p 0.4 arc-sec, and the 240s error is arc-sec 0.3 arc-sec.?
