Servo motor break down
I have made a pen plotter, and the servo works hard.
It's an sg90 servo with plastic gears.
The servo needs to work hard, by do 90 degree cycles again and again.
The power supply is an old phone charger of 5v 2a.
The problem I am getting is, when it's run for a long time, the servo heated up and stops working.
What should I do, for a long term solution?