Original plan was to use on my Hadley telescope to replace model 423704 but has wider application than just that telescope. We are using it on a 16-inch alt-az and a C14 as well
The green laser pointer is available on Amazon for about US$15 (2024) The print is simple, no supports needed. I used PETG but PLA should work as well. I used 0.20 layer heights. #10-24 screws are used and the holes are threaded for such. The plunger springs are 0.7x7x10 mm compression springs. The knobs are press-fit onto #10 nuts (I jammed the nuts against the screw heads).
The author marked this model as their own original creation.