Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4717893.
Mount LEDBERG way above where the printhead of the Ender 3 gets ...
As I converted my Ender 3 Pro to Direct Drive with a simple 3D printed bracket mounting the motor sideways in such a way that you don't lose any build-volume, I also didn't want that motor to run into any LEDs at the top of the printer. The LEDBERG mounts that I could find were typically just placed at the same height as the top 2020 extrusion of the Ender 3 and would be hit by my Direct Drive conversion.
So, I created this simple bracket to mount all 3 LEDBERG bars (connected with custom-made power connectors - exactly what IKEA says you should not do of course). The bottom should tightly fit in the V-Slots of the 2020 bar. I printed 2 of these brackets to hold the LEDBERG bars at both ends, but you might get away with a single one or can add extra if you want things to look more robust.