Motion mechanics
3D Printer Motion Mechanics Tools
Turn motors, microsteps, belts, pulleys, lead screws, measurements, and speed targets into motion settings you can verify.
Start with the hardware relationship
Motion settings connect step pulses to real travel. Use the hardware calculators first, then use a measured correction only when direct carriage travel is repeatably different. Keep belt, lead-screw, calibration, belt-sizing, and pulse-rate questions separate so one adjustment does not hide a mechanical problem.
Belt Steps per mm Calculator
Calculate 3D printer or CNC belt-axis steps per mm, rotation distance, and theoretical step resolution from motor, microstepping, belt pitch, and pulley teeth.Lead Screw Steps per mm Calculator
Calculate Z-axis or linear-stage steps per mm, screw lead, rotation distance, and theoretical resolution from motor angle, microsteps, pitch, starts, and ratio.Axis Steps Calibration Calculator
Correct 3D printer or CNC axis steps per mm and Klipper rotation distance from commanded travel and measured travel.Timing Belt Length Calculator
Estimate open timing-belt pitch length, whole-tooth belt size, and adjusted center distance for 3D printer, CNC, and maker pulley layouts.Step Pulse Rate Calculator
Calculate required step pulse frequency, motor RPM, pulse interval, and travel per revolution from steps per mm and target linear speed.
Calculate 3D printer or CNC belt-axis steps per mm, rotation distance, and theoretical step resolution from motor, microstepping, belt pitch, and pulley teeth.Lead Screw Steps per mm Calculator
Calculate Z-axis or linear-stage steps per mm, screw lead, rotation distance, and theoretical resolution from motor angle, microsteps, pitch, starts, and ratio.Axis Steps Calibration Calculator
Correct 3D printer or CNC axis steps per mm and Klipper rotation distance from commanded travel and measured travel.Timing Belt Length Calculator
Estimate open timing-belt pitch length, whole-tooth belt size, and adjusted center distance for 3D printer, CNC, and maker pulley layouts.Step Pulse Rate Calculator
Calculate required step pulse frequency, motor RPM, pulse interval, and travel per revolution from steps per mm and target linear speed.
Firmware names differ; the mechanics do not
Marlin commonly stores steps per unit with M92. Klipper describes travel per full motor revolution as rotation_distance. Both come from the same motor, microstep, ratio, and drive geometry.