Custom firmware can unlock 5x5 Automatic Bed Leveling (ABL) grids and manual PID tuning for both the bed and hotend. Preparation: Choosing Your Firmware
Newer versions address issues with jam detection and LCD refresh rates . Sunlu T3 Firmware Update
Improved versions better manage the 250mm/s "Fast Print" mode , reducing under-extrusion. Custom firmware can unlock 5x5 Automatic Bed Leveling
Modern firmware acts as the "brain" of your printer, and the stock T3 often ships with older versions that lack certain optimizations. Modern firmware acts as the "brain" of your
Before you begin, decide which path is right for your technical comfort level: sunlu 3d - Facebook
Updating your is a critical maintenance step that can resolve common "out-of-the-box" bugs, improve print stability, and unlock advanced features like refined high-speed printing . Whether you are sticking with official releases or exploring custom Marlin builds, this guide covers everything you need to successfully update your Terminator 3. Why Update Your Sunlu T3 Firmware?
Updates can refine the extruder cooling fan behavior, ensuring it stays on whenever the hotend is heated—not just when motors are moving.
