This is a part designed to be used with an inexpensive shelf bracket and lengths of 1"x2" board (actual size 0.75" x 1.5"). I used very inexpensive shelf brackets from Amazon (link below), drilled a couple of extra holes and put a screw up through the bracket, through this 3D printed part and into the boards. Please see the video for more explanation.

Printed on an Ender 3 with Polymaker Polyterra PLA. Print on it's side using 30% or more infill. No supports required.

https://youtu.be/pqzUDQoouBA

Brackets
https://www.amazon.com/dp/B08L59LGMH?psc=1&linkCode=sl1&tag=3rdpig-20&linkId=990f2e3636bffc08cf503e2e59231c62&language=en_US&ref_=as_li_ss_tl

Creality

Ender 3

No

No

200

30