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Hi Paul,
Sliding focuser plate sounds good but the tricky bit would be to manage tilt.
you could use two steel rods through the plate like a printer carriage head to avoid tilt.
I"m trying to get my measurements as precise as possible to reduce errors.
So I'll first assemble the three sections using just straight pipes where the three sections can slide and I'll carry out a focus test. once I determine the correct spacing between the three sections, I'll then cut the CF tubes to match the spacing.
I just finished the upper cage and mirror cell cuts. now I need to add the 6 point support to the trifoil, springs, silicone the primary, assemble the secondary and then test segment spacing.
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