Cytron Technical Forum

Hai, i bought your servo c55s and also have bought the PR23..everything runs well with PR23. I want to replace the given servo(c36) with c55s because it provide more torque. But the c55s cant rotate 360degree continuously. How to modified the my c55s servo? Can u provide me with proper detail on how to do it? Thank you for your time.

There're basically two types of modifications:

1. Convert it into a brushed motor. You'll need a brushed motor driver circuit to drive it. This is the one used by PR23.
http://robomaniac.solarbotics.net/tutorial/servo/StepsA.html

2. Keep the servo circuit board inside the motor, modify it and control it using PCM (servo pulse). With this, you save the cost for brushed motor driver circuit. You cannot use this kind of modified servo in PR23.
http://www.seattlerobotics.org/guide/servohack.html

how i want to modified metal gear servo motor....i want to use metal gear servo motor because it has higher torque than plastic gear...tq

Besides following the instructions given, figure out how to cut off the stopper of the metal gear is what u need to do. Using a saw, file, sand paper...etc. Just trial n error.

To modify the C55S, you just simply unplug the stopper from the metal gear.