LED ring, 18pcs of 5mm LED

A LED ring for 18pcs of 5mm LED. I needed to create a light source for a milling tool which had a specific diameter and a specific distance to the workpiece.

It just happens to be that the diameter of the motor is 33mm and the milling bits are mounted between two distances from the motor. To simplify, the LED ring is mounted flush against the motor edge (see pictures) and I decided to point 50% of the LED:s to the point of the milling bit that is furthest away from the motor and the other 50%