Build a Mini CNC Machine from Recycled DVD Players

Take two DVD players, use one as a plotting platform moving forward and backward, and mount the other vertically on it to provide left and right displacements. Add a simple RC servo to it to move the tool up and down and away you go.

I needed a tacho/RPM display for a CNC spindle. I decided to use an Arduino Micro and OLED display with a reflective LED/Photo transistor as a sensor. Since powering up, a clock can display the total running time of the machine. (or this can be reset via a push button.)I completed the first version and its working well!

I needed a tacho/RPM display for a CNC spindle. I decided to use an Arduino Micro and OLED display with a reflective LED/Photo transistor as a sensor. Since powering up, a clock can display the total running time of the machine. (or this can be reset via a push button.)I completed the first version and its working well!