Your 3D printer came with Marlin firmware. It works fine — until you push speeds past 100mm/s and suddenly your corners look like spaghetti. Enter Klipper: the firmware that offloads heavy math to a Raspberry Pi and transforms your printer into a precision machine.
What Makes Klipper Different
Marlin runs entirely on your printer's mainboard — a tiny microcontroller with limited processing power. Klipper splits the work: a Raspberry Pi (or any Linux computer) handles the complex kinematic calculations, while the mainboard simply executes precise step timing commands. The result? Smoother motion at higher speeds, with less ringing and ghosting.
Key Features You Actually Care About
Input Shaping
Ever noticed wavy patterns near sharp corners on your prints? That's resonance — your printer's frame vibrating at certain frequencies. Input shaping measures these vibrations with an accelerometer (like the ADXL345) and cancels them out in software. The result: crisp corners even at 200mm/s.
Pressure Advance
Marlin's linear advance tries to solve the same problem — compensating for filament pressure in the nozzle during acceleration and deceleration — but Klipper's implementation is more refined. It eliminates blobs at corners and prevents under-extrusion at the start of lines. If you've ever struggled with uneven extrusion on detailed parts, pressure advance is a game-changer.
Web-Based Control
Klipper pairs with Mainsail or Fluidd — clean, modern web interfaces you access from any browser on your network. No more fiddling with tiny LCD screens or SD cards. Upload G-code, monitor prints, adjust settings, and even watch a live camera feed — all from your phone or laptop.
What You Need to Get Started
- Raspberry Pi (Pi 3B+, 4, or Zero 2W — anything with WiFi) — around $35-55
- A supported mainboard — most Creality, BTT, and FYSETC boards work out of the box
- USB cable to connect the Pi to your printer's mainboard
- Optional: ADXL345 accelerometer for input shaping calibration ($5-10)
Installation Overview
The easiest path is KIAUH (Klipper Installation And Update Helper) — a script that automates the entire setup. Flash your mainboard with the Klipper firmware via SD card (a one-time step), install Klipper/Moonraker/Mainsail through KIAUH, and configure your printer.cfg file with your specific board pinout and stepper settings.
Is It Worth the Upgrade?
If you print mostly PLA at 50mm/s, Marlin is fine. But if you want faster print speeds, quieter operation, cleaner corners, and the ability to tweak settings without recompiling firmware every time — Klipper is absolutely worth an afternoon of setup. The community is massive, the documentation is excellent, and once you experience input shaping, you won't want to go back.
Ready to push your printer further? Pair Klipper with high-quality 3D printing filament that can keep up with higher speeds. Premium PLA+ and PETG formulations maintain dimensional accuracy even at 200mm/s+, giving you the full benefit of your tuned firmware. For hotend upgrades that handle high flow rates, check out our accessory collection.