Carton 100mm f/13 "MD" OTA Construction - Crayford Focuser-to-Tube Adapter Bolted in Place

 

Installation of the Crayford focuser-to-tube adapter. (Click to see an enlarged image)

 

Though the Crayford focuser-to-tube adapter was connected to the main tube during the finishing process, it was not bolted into place. It was basically held in place utilizing the snugness of the center shim and covered with the painters taped cardboard cap before priming and painting. This was done so that the areas around the mounting holes for the Crayford focuser-to-tube adapter could receive primer and paint. To secure the Crayford focuser-to-tube adapter and painting, I used three small stainless steel thread bolts with washers, lock washers and nuts. They will do well in holding the adapter in place very well. Looking into the back of the main tube, you can see the flocking material.