Simple LED base.
By turning the orange ring it is possible to open and close the “light slots”.
In this way you can experiment with the light escaping, which creates illusive light effects.
Also it helps the LED’s cool better if there is a lampshade with bottom on top of it.
The LED’s are glued on an Aluminum ring I had lying around. At first I wanted to make 3 round aluminum plates of 20 mm but I was lazy :-)
Printed in ABS silver and orange 0.2mm resolution.