A project I'm working on (see WDC-1) requires 80+ indicator lights to be mounted on a console. Digi-Key has some for as low as $.60, which is not bad, but I didn't like the look of them for my project (which is a vintage computer). So I decided to "roll my own".
The sockets are designed for 3 mm stand alone LEDs. I had some nice super bright white ones on hand. The picture above does not do justice to the nice look of these lamps when lit.
These are pretty small hence the .10 mm resolution. More importantly I lowered my first layer print speed to 5 mm/sec to make sure they adhered well to the bed.
Not much to say here. Because of the small size, sometimes the holes for the LED leads were a little blocked. These can be cleared with a small diameter straight pin. Slide the 3 mm LED into the socked with the leads pushing through the holes. It should fit snugly with the tip of the dome protruding slightly.