# How can I decrease the torque of a stepper motor?

I would like to take a powerful stepper motor, and sometimes weaken it, so it will stall when it hits resistance.

I understand that I can reduce torque with microstepping, but it does not seem to be precise enough. Is there another way to make the motor less powerful?

• use less current; torque is proportional to the current through the coils. – esoterik Jun 26 '18 at 0:13
• Microstepping modulates the torque available and is highly non-linear. Reducing the current is mostly linear though you need enough torque to overcome inertia. – Jack Creasey Jun 26 '18 at 1:10