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Use our Klipper rotation distance calculator to find the right value for belts, lead screws, steps per mm, and extruder calibration.
The Klipper rotation distance calculator helps you find the right rotation_distance value for Klipper. This value tells Klipper how far an axis moves after one full motor turn, which is related to the Stepper Motor Speed.
You can use it for belts, lead screws, and extruders. The tool also helps convert steps per mm into rotation distance.
If you’re new to Klipper, don’t worry. The math is quite simple. Enter your values, click calculate, and check the result.
This tool saves time and cuts down on guesswork. It can help you set up your 3D printer with more care.
The formula depends on your printer setup.
The formula is:
Rotation Distance = (Full Steps per Rotation × Microsteps) ÷ Steps per mm
For a 1.8° stepper motor, the full steps per turn are often 200.
Example:
Full Steps = 200
Microsteps = 16
Steps per mm = 80
Rotation Distance = (200 × 16) ÷ 80
Rotation Distance = 40 mm
So, you can use:
rotation_distance: 40
The formula is:
Rotation Distance = Belt Pitch × Pulley Teeth
Example:
Belt Pitch = 2 mm
Pulley Teeth = 20
Rotation Distance = 2 × 20
Rotation Distance = 40 mm
The formula is:
Rotation Distance = Screw Pitch × Number of Starts
Example:
Screw Pitch = 2 mm
Starts = 4
Rotation Distance = 2 × 4
Rotation Distance = 8 mm
The formula is:
New Rotation Distance = Old Rotation Distance × Actual Distance ÷ Requested Distance
This helps tune your extruder. It uses a real test with filament.
You can use our calculator in a few easy steps.
This makes the process quick and easy. You don’t need to work through the math by hand.
Let’s say you have a belt-driven printer axis.
The belt pitch is 2 mm. The pulley has 20 teeth.
Use this formula:
Rotation Distance = Belt Pitch × Pulley Teeth
Rotation Distance = 2 × 20
Rotation Distance = 40 mm
Your result is 40 mm.
You can then use this value in your Klipper config:
rotation_distance: 40
Think of it like a bike wheel. Each full turn moves the bike a set distance. In the same way, one motor turn moves your printer axis by a set distance.
For an extruder, the process is a bit different. You measure how much filament the printer really feeds. Then, you use that result to tune the old value.
The Klipper rotation distance calculator makes Klipper setup much easier. It supports key methods for belts, lead screws, steps per mm, and extruder tuning.
The right value helps your printer move and feed with better accuracy. Always check your hardware specs before you enter the data to avoid Motor Overload.
For the best result, measure your printer with care. A small error in your input can lead to a wrong result.
Rotation distance tells Klipper how far an axis moves in one full motor turn.
Use the formula that matches your setup. For belts, multiply belt pitch by pulley teeth. For lead screws, multiply screw pitch by the number of starts.
Use this formula:
Rotation Distance = (Full Steps × Microsteps) ÷ Steps per mm
Use:
Rotation Distance = Belt Pitch × Pulley Teeth
Use:
Rotation Distance = Screw Pitch × Number of Starts
Yes. Enter your old rotation distance, requested extrusion, and actual measured extrusion. The calculator will find the new value.
A correct value helps Klipper control printer motion with better accuracy. It can also help improve print size and extrusion results.