|
Moving along with construction, I have made up some sides for the mirror box that will shroud the mirror itself. I will be able to affix a top cover plate in addition to a bottom cover plate for when the scope is in transit.
Next I have made up a 25mm tube bracket that interfaces with the top of the mirror box. This is the base of the OTA itself. This bracket is clamped to the mirror box with over-centre clips, and it is located in precise and repeatable position by three dowel pins inserted into this bracket.
It is important that as this project develops, all components are clamped in the correct position during any welding, as the heat distortion can cause twisting that is nigh impossible to correct later.
The attached pics will explain better than words.
|