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Secondary mirror holder/mount for dobson telescope

by ThomasTL

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astronomy Diagonal diy Dobson Dobsonian easy holder mirror mount Secondary simple spider telescope vane astronomy Diagonal diy Dobson Dobsonian easy holder mirror mount Secondary simple spider telescope vane

A simple secondary mirror holder for a diagonal mirror with a minor axis of 4 cm or more.
I designed this secondary mirror holder for my dobson telescope building project using a 203 mm diameter primary mirror and a secondary mirror with 70 mm of minor axis.
This simple diagonal mirror holder has the basic 3 screws at 120 degrees to tune the tilt of the secondary mirror. Rotation and translation back and forward the telescope tube is achieved thanks to the M4 screw.
It is a simple but efficie

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