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No , any upgrade will be a larger version of what I have in the Avtar pic , on the fork mount that I am building .
Twin truss OTA .
I am just making sure that any upgrade will fit between the forks and within the dome.
It will just be an f5 next time to keep the overall length with in the 3.4m dome .
At this stage it will only be a 16" as that is the largest that Rob Royce does in the conical cross section Mirrors.
I am how ever hoping that by the time I am ready to upgrade , larger sizes are available in the Conical Mirrors.
What thickness mirror is the 18" as that has a lot to do with the balance point.
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