These tracks are designed to fit the inside parameter of the X3D-V3 AMS Riser and hold 10mm COB LEDs at 70 degrees from horizontal (20 degrees from vertical). I cut the lengths in quarters to allow them to print more easily without the need for a brim. The riser has 2 long sides (front and rear) and 2 short sides (left and right). You will need to print 8 of each track (shorter and longer) or the .3mf file which has all of them arranged on a single print bed. I then used Gorilla Super Gel to attach them to the riser as seen in the pictures.
The author remixed this model.
I used the internal parameter layout to design these LED tracks to hold 10mm COB LEDs.