Zhumell 10 inch dob w/telrad (Oddball) Meade AR-5 127mm F\9 Orion 120mm F\5 on a LXD55 Meade 90mm F\11.1 on a EQ-3 Nikon AE 10x50 Binos Astro-Tech Paradigms 5,8,12,15,18,25mm GSO SuperView 15mm,10mm Knight Owl EWA 6mm,9mm Meade QX 30mm,26mm Meade 5000 SWA 20mm Zhumell Plossl EP Kit
Quote:John, yesterday I disassembled the ETC90-EC, clean, sand, adjust, lube. It was a nice task. I am posting the work in a new thread, including some pictures of the fork motor noise reduction trick and sealed lead acid battery support.
Quote:@Wagner -- thanks for all that info, i'll have to take mine apart and check those adjustments. I do have a backlash problem on both axes, which seems to exist IN the mount, not the gearpack. I've read of "the leather washer fix", but am having difficulty re-locating that info. Do you, or anyone one else, know anything about this??Also, regarding your disassembly and cleaning of the main optics ... how difficult was it to maintain collimation? Is the lens assembly sensitive to rotational collimation as well?