This is a corner for LED strip lights that use the aluminum channel. They make corners to turn the LEDs in the flat position, but I could not find anything that would turn the corner into itself. This is useful if you want to go around the inside frame of a window, garage door or even a room to create accent lighting.

I am using this for my year-round Christmas lights on my garage.

I made two versions; one has cutouts to allow more visibility of LED's that may be under the corner. Both versions allow for a gentle turn of the LED strip within the corner and will work with the IP65 lights that have the silicon covering.

I have now added two traditional corners for use in the flat position as well as an outside corner. It can snap over a mounted track. one has a rounded top and the over is flat topped. I found the flat top printed a little better, especially when used on a textured build plate.

It was designed to work with this type of track:

hunhun 10-Pack 3.3ft/1Meter U Shape LED Aluminum Channel System with Milky Cover, End Caps and Mounting Clips, Aluminum Profile for LED Strip Light Installations, Very Easy Installation: Amazon.com: Tools & Home Improvement

I found that printing the models lying flat and using supports worked best.