A Nintendo Joycon grip with front-looking windows for the LEDs.

It prints without supports and the LED windows face forward, so you can see them right as you normally hold the joycon. The LEDs shine into a slit that arrives to a 45º oriented surface which can be seen from the front-looking window. It is basically a cheap mirror arrangement. But it works!

Most PLA filaments are reflective enough for this trick to work. Even black PLA works well, as shown on the photos. PETG should be fine too, although I haven't tried it myself.

In any case, if you are not sure if your particular filament of choice will be shiny enough, print first the test STL model, which is just the little window part. Try it with your joycon and if the LEDs reflect well you can go ahead and print the full model.

Have Fun!

Print instructions

This model is a remix of my remix of Switch Joy-Con Grip by Philippzzt.