I recently bought a ZWO AIS294MC Pro and wanted to use it with my Questar OTA.
I have recently have posted how I was able to mount my Questar OTA and a Celestron Star Sense
AIS Camera onto my Celestron CGEM-DX, by use of a Scope Stuff DFMB, Dual Finder Bracket, mounted perpendicularly
to a Losmandy DUP7.
I had fabricated a aluminum bracket to be the main support for the New ZWO AIS294MC Pro. The reason
for this, is when the assembly is screwed onto the Questar's Axial Port threads, there's a lot of mechanical advantage
that could snap-off the assembly unintentionally.
I had also purchased the ZWO RINGD-78 mounting bracket that needed to be modified. The original lower foot
of the RINGD-78 had to be turned up side down. The RINGD-78 original screws were 2 Metric socket head screws.
I needed to opt for 2, 8-32 Flat Head screws instead of the Metric screws. This meant I had modify this lower
foot by countersinking to of its original mount screw holes to accept 2, 8-32 Flat head screws.
The two Metric threaded screw holes were easily rethreaded by using an 8-32 machinist tap.
By doing this, as seen in the photos, it allowed the 1'' long slotted hole to face downward.
This modification allows you to adjust & slide the ZWO bracket to slide backwards
or forward to accommodate the addition/subtraction of different spacers, filters or in my case, a added Questar
Axial Port screw-on Barlow.
The first photo shows the modified RINGD-78 bracket facing downward. I used a 8-32 bolt, washer & nut to
secure the RINGD-78/ZWO AIS294MC Pro to my fabricated Aluminum support bracket.
The second photo shows how you swing open the ZWO RINGD-78 bracket to attach the ZWO AIS294MC Pro.
In this case, I used the supplied 1.25" screw-on adapter to be threaded into the ZWO sensor well side.
That slides into the an Optional Questar Slip Fit Axial Port adapter that allows an 1.25" item to be used on a Questar
The third photo shows the RINGD-78 swung back to tighten to hold the ZWO AIS294MC Pro in place securely..
The fourth photo show an additional view of the whole assembly from a side view.
The Aluminum Stock can be purchased at any Home Depot along with the screws needed for fastening.
That Aluminum bracket is anchored to the Losmandy DUP7 using 4 available Pre-Drilled holes that are existing
on the DUP7 already. The whole project was not too involved and if anyone has any questions, please feel free to