Originally Posted by arvidb No, please... mass*distance (g*cm) does not give torque. g-cm, kg*cm, kg*m etc are all nonsense unit.
Arvid |
Indeed. However, due probably to imperial->metric conversions, grams are used as a measure of force about as often as pouns are used as a measure of mass. In grade school they have kids approximate their "weight" in Kg when it should be in N. From my (limited) scrounging for stepper motors it seems that several catalogs list the torque in g-cm instead of N-cm. I assumed that's what people are likely to see when shopping for steppers, so I was trying to keep consistent.
The salient point is that a "XX oz" motor should be "XX oz-in", so buy based on torque and not weight.