Hello all, being trying to work out what motors i require and work back from there.

Used the Motorcalc sheet but the numbers do not look right or i can not make sense of the output. Can some help?
It will be a dual screw machine made from steel. I have inputted the Worst case data. I think.

My question is, how do I interpret this into the correct motor? since i was going to have two motors for the longest axis do i factor this in by halfing the max load?

Looking forward to getting some parts and starting a build log.

INPUTS
Load Calculations
Mass of Load 25 kg
Friction co-efficient 0.01
Cutting forces 5 N

Leadscrew calculations

Screw pitch 6 mm
Screw dia 20 mm
Screw length 1500 mm
Screw minor dia 18 mm
Screw efficiency 30% %
Screw Fixing Fixed-free

Max linear speed 1200 mm/min
Acceleration time 0.02 sec

Screw mass 3.676 kg
Screw inertia 1.838E-04 kgm^2

Total Inertial load 2.066E-04 kgm^2

Critical Speed 1486 rpm

Motor revs 200 rpm
20.944 rads/sec


Acceleration torque 0.216 Nm

Total Torque 0.240 Nm
at 667 steps/sec

Motor Power 5.030 W

Required Motor 7.55 W
per phase 3.77 W
(bipolar halfstep)

rotor inertia > 2066 gcm^2