Re: Mach1 Unable to Find Home Position Suddenly


Ray Gralak
 

The LST / RA difference is off about 2 minutes, is this an issue?
Park 3 is on purpose not exactly at the celestial pole, but close. So, that's okay.

Did a slew and sure thing, the mount returned to park 3 nicely. I then did the same exercise a dozen times and the
worst Dec miss was maybe a quarter of an inch - which I have seen before and I'm not worried about.
It seems like unparking from last parked position has solved the problem, correct? It's always safer to unpark from the last parked position than to unpark from one of the park positions.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver


-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Mikko Viljamaa
Sent: Saturday, March 21, 2020 7:56 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 Unable to Find Home Position Suddenly

Thanks Ray & Rolando,

So as long as I have had the Mount, about two years now I have never used park from the last position - this
without any issue. I did go out and tried both; unpark from 3 and park back to 3 results the Dec axes to miss its
mark about an inch. I then manually swung the Dec to match the mark and chose to unpark from the last position.
Did a slew and sure thing, the mount returned to park 3 nicely. I then did the same exercise a dozen times and the
worst Dec miss was maybe a quarter of an inch - which I have seen before and I'm not worried about. I might have
a narrow window tonight to see how things go in real life and if the mount points where expected and Platesolve
finds the target immediately,

The LST / RA difference is off about 2 minutes, is this an issue?




- Mikko

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