Summary

While HY310 is a pretty cheap and neat projector, it's even nicer when can be mounted to a bed with some mounting.

Features and credits:
-the mount to the bed is remixed from https://www.thingiverse.com/thing:4104475
-for a bit more rigidity when attaching to bed, there's a screw. It's itself a remix of: https://www.thingiverse.com/thing:1657541
-the mount to the projector has a place for screw, for extra security. Itself is a remix of: https://www.thingiverse.com/thing:7251767
-there's a hole to route all the wires through.

-as for the screw to mount the projector, you can use anything you like. I've used this one: https://www.thingiverse.com/thing:2749041

Printing:
-I've used sunlu PETG at 15% infill and it looks to be working fine.
-No supports needed. Print on the side.
-I've printed this once on Bambu Lab A1 at 166% speed.

Some info regarding the print:
-the screw is a very tight fit. I'd recommend using a cloth while spinning it in place.