This is a incense burner inspired by the locking ball/socket arm (https://www.thingiverse.com/thing:142034).

This was thought for burning stone incense that need constant adjustment based on the high of the flame.

With this arm design is infinitely adjustable! It works like charm!

-- SAFETY CONCERN ----- If you print this in plastic, be aware that you are using it with a naked flame. So use common sense. You should use a non thermal conductive material between the arm and the fire, to avoid plastic warping or fire hazard.