Time to start on the last major component – the focuser! This will be a Crayford Focuser using some 3x3x8 ball bearings, some aluminium tubes and bits and pieces lying around.

The first part to be constructed is the base-plate that will attach the focuser body to the telescope. This is threaded to take the bottom of the focuser tube; this will then be secured with locktite.

Once assembled the focuser will be mounted in the lathe and the outside of the base-plate will be turned circular so it looks nice 🙂