Designed for small RC Airplanes, up to 3 pounds (1300 grams)

I enjoyed designing for my own use. If it helps you great!
I included my Fusion 360 file if you want to make changes.

Creality

Ender 3

No

No

.2mm

20%

Two types one for screw mounting other for 3M command strips (picture hanging LARGE)
Print the hook then use mirror setting for opposite side
The center web is just press fit to help line up hooks for mounting.
Can use without the center web to allow for alternate mounting (sideways)
Use 1/2 inch water pipe insulation (4.5 inch / 115 mm long) to protect airplane.