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Solved Orion/GSO RC10 Ritchey Chretien on M-Uno

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27 Sep 2020 16:19 - 09 Oct 2020 12:59 #409 by G_Gagnon
Is there a problem installing a 16Kg RC10 Truss Tube Ritchey Chretien plus ZWO camera/FW/Off-Axis-Guider on a M-Uno mount? I know the M-Uno can support 20Kg but I want to make sure that the system will be well within load margin and that there won't be issues such as vibrations, undue flexure, drive capacity, etc... Thanks for your time and information.
Last edit: 09 Oct 2020 12:59 by Stefano82. Reason: Typo

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30 Sep 2020 01:04 #410 by mike7mak
Replied by mike7mak on topic Orion/GSO RC10 Ritchey Chretien on M-Uno
I can't speak directly to the truss tube scope but I have been running a Meade 10" ACF, with Atik One 6 camera, Optec focuser, OAG, and 8 lbs of counterweight. OPT lists the Meade tube at 26 lbs. I'm fairly certain I'm very close to the 44 lbs upper limit for astrophotography on the M-UNO, if not a tiny bit over. It is mounted on a permanent pier in an observatory.

Depending on seeing conditions, of course, I get very good guiding performance and no erratic behavior. My PHD2 RMS numbers on decent nights are always below .5 arcsec and probably average .35 or better.

In my opinion, if your setup is well balanced and can be kept at or below the rated capacity of the M-UNO it should work fine. The structure and mechanicals of the mount are certainly capable of handling it's maximum rated weight and then some.

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09 Oct 2020 11:41 #415 by G_Gagnon
Replied by G_Gagnon on topic Orion/GSO RC10 Ritchey Chretien on M-Uno
Thanks for your info mike7mak.

Until the pandemic settles down, I will keep using my C8 on my M-Uno and weight my option into a new OTA. Thanks again.

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