Telescope rotation knob

This is for a rather big Sky Watcher telescope (F100 D20). I guess it's probably made to be equiped with motors or specially made knobs or handles. Anyway, without it it was quite difficult to manually move and position it smoothly and precisely.
So, as I saw there were 6mm metal axis I designed this knob that can be tightened in place with and M4 nut and an M4 headless screw.
Print two of them to be able to apply the two types of rotations that will allow you to position your telescope in any direction you like, and reach for the stars! :)