John was eager to test the updated firmware. He loaded a new print job, a intricate vase design he had been meaning to try out for weeks. As the printer sprang to life, John noticed an immediate difference. The print head moved with increased precision, and the extruder seemed to be applying the filament more smoothly.
(Used when SD update not supported or using custom Marlin build.) Sunlu T3 Firmware Update
: You can find archived official source code and Marlin 2.0 bugfix branches for the T3 on GitHub . Step-by-Step Update Guide John was eager to test the updated firmware
Estimated time: 15 minutes. Difficulty: Moderate. The print head moved with increased precision, and
Updating the firmware on the Sunlu T3 (a budget Ender-3 clone) can improve print stability and fix bugs, but the process is less user-friendly than mainstream printers like Prusa or Bambu Lab.
The Sunlu T3 is mechanically and electronically very similar to the Creality Ender 3 / Ender 3 Pro . In many cases, users have successfully flashed standard Ender 3 firmware (like the "TH3D Unified Firmware" or standard Marlin) onto the T3.