Here is a handle design so you can lift your Elegoo Mars cover without touching the sides with dirty gloves! I also made a hanging plate so you can hook it to a screw head on any wall and have your machine free to work on inside without cover in way.
It might fit on other resin printers, just verify the size.
I use two types of M4 screws with button cap:
M4 x 24 @2
M4 x 12 @3
M4 nuts @6
here's a handy set (affiliate link): https://amzn.to/2l3a0gx
I printed in PLA with 3 outlines and 30% infill.
I printed the wall plate flat on its back, no supports
and the Handle in the upright use position with supports under center of handle.
Screen shot of build plate attached.
I designed it so the screw holes are close the the edges for more support and less chance of cracking.
To drill I recommend this process:
put down masking tape across general areas.
Mark center lines for holes and double check.
Drill with a small bit about 2-3 mm or 1/8, do not push, let the drill cut the material.
Re drill with a larger hole about 4 mm or 11/64 for final hole.
Push screws through printed parts and through cover, back with washers then tighten down nuts.
If you love this please let me know and post your make!