Ken Fiscus- stargazing since 1980. Now observing from a green zone.
Z12 on custom mount, Atomic EQ platform, 100% flocked, OMI primary, Astrocrumb filter slide with O-III, NPB, & skyglow filters. Focuser & spider rotated 45 degrees. New springs & Bob's Knobs, Telrad & 9x50 straight finder 35 & 24 Pans, TV 13,7,5 T6s
Custom Orion XT10 with piggyback XT4.5 on Round Table EQ Platform
Quote:The first thing I would try is loosening the two screws that secure the plate that holds the focus knobs and shaft. If more than snug it could cause the hard turning of the knobs. Also, you may consider cleaning out whatever lube may be in it (Synta goop?) and relubing with a light grease only on the rack, the pinion, and the points where the shaft rides on the focuser body. The focuser tube rides on teflon strips inside the body, so no need to lube the tube surface.Ed D
Quote:I have a question about the focuser on the Orion XT6 OTA i recently acquired. The focuser is rather stiff. If anyone knows how to adjust it, it would be appreciated, PM me if ya want....
12.5" custom truss Dob on a TECH2000 Dob Driver II, AT80A Orion achro on an EQ-3, 8XTi Orion Dob on an "Alien" EQ platform. Eyepieces: Explore Scientific 82* 30, 24, 18 & 6.7mm's and ES 2 inch focal extender. Favorite quote: "Science without religion is lame, religion without science is blind" -- Albert Einstein
Quote:In my experience, the Synta rack and pinion focusers all can be significantly improved so that they are smooth, free and tight.. This is how it do it:Reworking a Synta Rack and Pinion Focuser
10" F/4.7 Modified Skywatcher Reflector, 38mm Orion Q70, 17mm Modified Ultima LX, 10mm TeleVue Delos, 7mm Pentax XL.
Quote:I removed that thing which my friends joked about having to need a pair of vice grips to operate.
AD10, NoName8, DS-16 with Spooner primary.
ES, Sterling, Parks, Baader, TV, GSO EP's and a lone Nagler.
Nikon, Celestron binos
Quote:Quote:In my experience, the Synta rack and pinion focusers all can be significantly improved so that they are smooth, free and tight.. This is how it do it:Reworking a Synta Rack and Pinion FocuserIMO, this is true, however, IMO, you'd be much better off getting a completely new focuser like I did. I removed that thing which my friends joked about having to need a pair of vice grips to operate. The difference is like night and day since I got rid of it and got myself a real crayford focuser. Another good option is going to a 2 speed for more precise focusing when needed.