Re: Slight RA jump on DEC direction reversal


mcmillanjr4221
 

Hi Pete,

I don't think this is normal. I suggest you run the diagnostic
routine in PulseGuide and send the results to Roland.

Also, 3 seconds of DEC backlash seems a bit excessive to me. With
careful adjustment of the worm mesh, my AP1200 DEC backlash is more
like 0.6 seconds at 0.5x sidereal.

FWIW.

Jim McMillan

--- In ap-gto@..., "Peter Santangeli" <peter@...> wrote:


A quick question... In adjusting my DEC backlash today (which seems
to
be at about 3 seconds at 0.5x speed), I noticed that RA "jumps" a bit
down when DEC is reversed.

Is this a normal thing? Can it be minimized/eliminated?

Pete

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