I had designed this housing for a projector I purchased that did not have mounting screw holes on the top. This housing is meant to be fastened to a ceiling projector mount and allows the projector to sit in the housing and easily be taken out. The housing fits my projector that is 8" long, 6" wide, 3" tall, with extra wiggle room of course. You obviously need to print two, one for each side of the mount. Printing time was about 1 day and 23 hours.
Note: This housing was designed for a FULL MOTION UNIVERSAL projector mount, here is the link to the mount:(https://www.amazon.com/gp/product/B08HYQHYPC/ref=ppx_yo_dt_b_asin_title_o09_s01?ie=UTF8&psc=1)

Printing details:

Print temp: 200 C
Bed temp: 60 C
Layer height: 0.12 mm
Initial layer height: 0.2 mm
Infill: 50 %
Infill pattern: Cubic
Print speed: 50 mm/s
Initial layer speed: 30 mm/s
Number of slow layers: 5
Retraction - 6.0 mm @ 25 mm/s
No supports (print with holes first, face down)

Creality

Ender 3

No

No

200

50