This is a simple piggyback laser holder for the Unistellar eVscope.
I wanted something to help my daughter learn the locations of the deep sky objects that Unistellar will automatically find. The laser beam helps to identify where in the sky we are looking when the eVscope is showing us the deep sky objects.

I used M4 heat set inserts on all the screw holes, with black nylon screws to hold the laser.
I included a print to slip onto the laser that you can screw down on the top screw to keep the laser button pressed, and loosen the screw when you want the laser to turn off.

Also included an M4 screw button cap topper that slips onto an M4 screw that I use to secure the Vixen dovetail in place.
The piggyback ring itself, I designed it slightly larger than the outer diameter of the telescope so that I could put adhesive backed felt onto it so it wouldn't scratch my $3,000 telescope. It is secured with a 1/4-20 thumbscrew and thumb nut. You may need to wobble a drill bit in it to enlarge that hole slightly.