My apologies. Here, units work out properly now:
3.8kg x cm / .4cm = 9.5kg the unit cm cancels out as it should.
4.8kg x cm / .65cm = 7.38kg
To be technically correct kg isn't a unit of force, but gravity is present. So it does exert a force on it. Not that there is anything falling, but the unit kg has the assumption built in that we're on earth and gravity is 9.81m/sec^2
Force due to gravity:
Mass x gravity = weight (or rather force, in newtons)
3.8kg x 9.81m/sec^2 = 37.3 kg x m / sec^2 which is the unit newtons.
4.8kg x 9.81m/sec^2 = 47.1 kg x m / sec^2
But I tend to think with the unit kg x cm in mind when I'm dealing with stepper motors and reprap ^ ^
3.8kg x cm / .4cm = 9.5kg the unit cm cancels out as it should.
4.8kg x cm / .65cm = 7.38kg
To be technically correct kg isn't a unit of force, but gravity is present. So it does exert a force on it. Not that there is anything falling, but the unit kg has the assumption built in that we're on earth and gravity is 9.81m/sec^2
Force due to gravity:
Mass x gravity = weight (or rather force, in newtons)
3.8kg x 9.81m/sec^2 = 37.3 kg x m / sec^2 which is the unit newtons.
4.8kg x 9.81m/sec^2 = 47.1 kg x m / sec^2
But I tend to think with the unit kg x cm in mind when I'm dealing with stepper motors and reprap ^ ^
