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Fixed my focus issue, shortened the poles almost an inch.? Thanks for all of the help.

New problem, after about five months of ownership.? Telescope lives in my garage covered and away from the elements.? Humidity is NOT a concern as I live in SW Colorado.

The Azimuth rotation is nearly non-existent, meaning that last Fall I could easily rotate the entire assembled scope with fingertip pressure with the ServoCAT disengaged.? I went to take the scope out this last morning and i have to use SIGNIFICANT force to move in Azimuth.? I rolled the scope back in and disassembled it to the point I removed the mirror box from the rocker box.? I anticipated to find something amiss with the ServoCAT clutch mechanism.? Nothing wrong there, it works like a dream when the lever is in the disengage position,? It clamps down good and snug when engaged.? If I turn the rocker box on its side the round ground board rotates freely.? However when I lay the rocker box down proper on its feet it begins to be "sticky" and more difficult to move, if I load the mirror box (no struts or upper cage assy) it becomes very hard to rotate in Azimuth.? I then removed the mirror box again and inspected the teflon pads I could readily see, they look fine.? I am unsure how to actually dismantle the powered ground board from the rocker box.? There is a rectangular plate on the bottom of the scope and a couple of other hex head fasteners, not real big ones.? On the top inside of the rocker box, I don't know how to release the encoder assy, I removed the screw on the end of the encoder assy arm, but the encoder won't slide off of the shaft.? I looked for a set screw on the sides of the encoder and found none.??

I am asking for help as I DON'T want to MUCK it up, but I would like to take the round ground board off and inspect between the round ground board and the rocker box bottom.??

Any suggestions at what might be causing my added friction????? And suggestions on seperating the round ground board from the rocker box?

Thanks,

Chuck

I have your same scope, 20" F5.? I have not experienced your problem with the obsession, but I have experienced the problem with my 14.5" Starmaster.? To fix the problem I cleaned the Teflon?pads and used "Armor All Original Protectant" to recoat the teflon pads. In addition,?I used a counterweight?that I hung off of the upper assembly.? Once I hung the counterweight?and adjusted the weight, the azimuth stiction problem disappeared.? I now?have my buttery smooth?movement back again.

OK, Thanks to Mr. Starks, I have found my issue.

I took out the two hex head screws and was able to remove the bottom ground board.? VIOLA!??

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Where there should have been four Teflon pads, one each at 120 degrees and a center one, one of the three outer pads was missing!? By the rub marks on the ground board, it has been gone quite a while.

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I could have sworn I inspected all three before I took it apart, must have missed one.

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I have a new Teflon pad gluing right now.? I’ll reassemble in the morning and do a test tomorrow night if the cloud monsters stay away.

Thanks guys.

I also am getting ready to solve ALL of my 18UC issues, I am re-hosting the optics in a new skin, a DOC Telescope from Marco!

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