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Hi Brent,
That's really impressive work. look forward to seeing the finished scope.
but had two quick questions.
have you thought about using a broader mid section between the upper and lower truss segments for the EQ6 dovetail to reduce axial flexure?
not sure how to explain it, but just as an example, for a normal reflector OTA, the tube rings are around 30cm apart for a length of around 80 to 100cm. as you reduce the gap between tube rings, axial flexure becomes more pronounced.
here, the length of the member from primary mirror to secondary looks well over 120cm as a rough guess but the cross section in the middle that's held by the dovetail looks like its around 15cm.
just wondering how you overcame axial flexure especially once its loaded with the primary mirror, secondary, focuser and other elements.
I recall you mentioned this design ensures that sag is equal at upper and lower halves, but how about axial stiffness when loaded?
how quickly are oscillations dampened?
secondly, your rotating upper cage concept is really good, but how does it affect balance of the scope say if you have a dslr or heavy eyepiece attached and you rotate it. do you have variable counter weights at the opposite end? does the upper cage ride on roller bearings?
Thanks
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