10-inch patch panel with 12 keystone module space. It's designed and created with OpenSCAD. The standard unit width is 44.45 mm, but to save some space for my very small network rack, I used 30 mm. You can change the module_count variable in the scad file and generate the new stl for it.

I printed this on my Elegoo Neptune 2S with PLA without support. To print rotate the patch panel like in the photo.