Klipper

Spec sheet

Purpose

Klipper is firmware that controls 3D printers by combining a general-purpose computer with one or more microcontrollers.Read 11 Oct 2026 · klipper3d.org

API

Klipper includes a JSON-based application interface in addition to its standard G-code interface.Read 11 Oct 2026 · klipper3d.org

Integrations

Documented front ends include Mainsail, Fluidd, and OctoPrint, and common slicer G-code from SuperSlicer, Cura, and PrusaSlicer is supported.Read 11 Oct 2026 · klipper3d.org

License

The project describes Klipper software as Free Software and links to its license.Read 11 Oct 2026 · klipper3d.org

Compatibility limit

The FAQ says Raspberry Pi 1, Pi 2, and Zero 1 lack enough processing power to run Klipper well and are not recommended.Read 11 Oct 2026 · klipper3d.org

Configuration

Printer settings are stored in an editable configuration file, so changing a setting does not require reflashing the microcontroller.Read 11 Oct 2026 · klipper3d.org

Hardware

The installation guide recommends a Linux-based host, such as a Raspberry Pi or Debian-based Linux device, and explains that x86 Linux devices can also be used.Read 11 Oct 2026 · klipper3d.org

Movement features

It supports Smooth Pressure Advance and Input Shaping to improve extrusion behavior and reduce vibration effects on print quality.Read 11 Oct 2026 · klipper3d.org

Printer support

Klipper supports multiple microcontrollers, multiple extruders, and Cartesian, Delta, CoreXY, and other printer kinematics.Read 11 Oct 2026 · klipper3d.org

Safety behavior

If the microcontroller does not receive heater enablement confirmation every three seconds, it enters shutdown, designed to turn off heaters and stepper motors.Read 11 Oct 2026 · klipper3d.org

Setup requirements

The installation guide says creating a printer configuration from scratch requires significant technical knowledge about the printer and its electronics.Read 11 Oct 2026 · klipper3d.org

Step timing

Klipper schedules each stepper event with a precision of 25 microseconds or better.Read 11 Oct 2026 · klipper3d.org

Plans and prices

Every Klipper plan and price →

Where Specifiction places it

• 3D Printing Software#22 of 357.7