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Re: [APML] Southen sky wide-fields

On Sat, 29 May 2004, Wei-Hao Wang wrote:

> About the backlash of SP-DX.  Did you guys try to adjust the Dec
> gear?  I know the amout of backlash is manually adjustable.

Wei-Hao,

that's true, but if you try to minimize backlash by moving the worm closer
to the gear the Dec. drive gets harder and harder to turn, up to the
point where the stepper motor will slip. One needs to find the right
compromise between too much backlash and a stuck Dec. drive.

Clear skies,

Axel

-- 
Axel Mellinger  <http://canopus.physik.uni-potsdam.de/~axm/astrophot.html>
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