My Anycubic Kobra 2 Pro came with a missing bracket. Rather than wait for several weeks for Anycubic to finally get a replacement to me, I decided to mold one from thermal plastic as a temporary solution then designed and printed one. This is my first ever design yet it fits like a pair of skinny jeans. This can be tuned in a little better. I designed it without the use of a caliper, only a mm ruler using Tinkercad at 1mm increments (didn't realize until later that the software allows for much tighter designs).
I've had the bracket in operation now for about 100 prints (800 hours) and it's holding strong. Used the default settings of the printer and cheap $11/kg PLA+.
This sits flush against the top rail, unlike the original part that is recessed. The bearing had to be pressed into place with some vice grips. This is using slightly longer screws to hold it to the frame but otherwise can be used with the factory screws and bearings.
Please feel free to tweak, improve this design. It was intended as a temporary solution while waiting for OEM parts but I like it enough that it's still in operation.
The author marked this model as their own original creation.