Torque is directly proportional to the current. Temperature rise is proportional to the square.
At the rated current into both coils the temperature rise is 80C, so for Reprap with plastic brackets we always use less than the rated current. 1.7A motors are pretty much ideal.
At the rated current into both coils the temperature rise is 80C, so for Reprap with plastic brackets we always use less than the rated current. 1.7A motors are pretty much ideal.