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Re: CG11 question

 

Michael,
What is the principal differences?between?PemPro and PECPre? The last is free, the first is not cheap.
Does the upgrading Tucked? Motors any impact on the GoTo or tracking precisi¨®n, or is only aesthetic)
Thanks

Luis Barneo

El jue, 4 mar 2021 a las 2:23, Michael Herman (<mherman346@...>) escribi¨®:
I have that mount and successfully upgraded it.

I used the original long OPW (no longer in production), replaced the old steel worm on RA with a new brass one, added an R4 Belleville spring washer to both axes, replaced the RA worm bearings with R4ZZ ABEC-7, and lastly a McLennan 25:1 metal gearbox on RA. Also using a Gemini-1 and new high torque motors.

I use high friction clutch disks to prevent clutch slippage during imaging.? I have a 12 inch Meade SCT on it these days.??

?PE was down to under 1 arcsec RMS (about 2.8 arcsec peak to peak). Reports attached.? Contact me privately if you have further questions,

Michael?

On Wed, Mar 3, 2021, 4:35 PM wa1vta01452 <loeblt@...> wrote:
I have some very specific questions for someone familiar with the early G11/CG11 mounts? DEC axis assembly.? Anyone out there before I continue with the details?

Thanks
Tom

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