# Linear-axis actuator sizing
# Scope: Horizontal screw axis acceleration and sliding resistance.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

mass = 20 kg
acceleration = 1 m/s^2
friction = 10 N
lead = 5 mm
efficiency = 0.9

force := mass*acceleration+friction [N]
torque := force*lead/(2*pi*efficiency) [N*m]

check drive torque budget: torque <= 0.1 N*m

scenario alternative: mass = 16 kg