All kinetic energy of the moving mass (sled) is transferred to the stop (frame) before Stallguard is able to recognize that it cannot move any further.
It's like using a car's AirBag as a sensor. If the AirBag has triggered - it's too late to brake.
Most other kinds of endstops have at least a tiny bit of stopping distance regardless of how bad they are mounted. (FSRs are one of the exceptions)
Stallguard Homing leaves no leeway for braking
All kinetic energy of the moving mass (sled) is transferred to the stop (frame) before Stallguard is able to recognize that it cannot move any further.
It's like using a car's AirBag as a sensor. If the AirBag has triggered - it's too late to brake.
Most other kinds of endstops have at least a tiny bit of stopping distance regardless of how bad they are mounted. (FSRs are one of the exceptions)