Sunlu T3 Firmware [work] -
The Marlin community has created an optimized configuration for the Sunlu T3. This configuration, created by a user named Anson Liu and based on a modified BTT SKR Mini E3 V2 board with TMC2209 drivers in standalone mode, is included in the . This customized build fixes several known bugs in the stock firmware, such as:
Updating the firmware of your Sunlu T3 can unlock its full potential, providing improved performance, new features, and enhanced reliability. By understanding the basics of firmware, the benefits of updating, and following a step-by-step guide, you can safely and successfully update your Sunlu T3 firmware. Whether you're a seasoned 3D printing enthusiast or a newcomer to the world of additive manufacturing, this comprehensive guide has provided you with the knowledge and confidence to take your Sunlu T3 to the next level.
A compression compensation algorithm that reduces stringing, sharpens corners, and prevents blobs during high-speed printing.
Ensure you are using a firmware version that specifically addresses the extruder fan mapping (such as Kaot93's version).
// Probe #define Z_SAFE_HOMING #define Z_MIN_PROBE_ENDSTOP #define Z_MIN_PROBE_PIN PC4 // inductive sensor sunlu t3 firmware
firmware and electronics is by . His post, SUNLU T3 Marlin Configuration and Controller Board Pictures , is widely considered the gold standard for this printer. It covers:
Change printer settings in the printer.cfg file instantly without reflashing firmware binaries. Creating the Klipper MicroSD Bin File
Custom firmware occasionally maps the stepper motor directions backward. In Marlin, search for INVERT_X_DIR (or Y/Z/E) in Configuration.h and toggle it from true to false (or vice versa). In Klipper, simply add or remove an exclamation point ! in front of the direction pin (e.g., dir_pin: !PB12 ) in your printer.cfg . Conclusion
Use a high-quality card (8GB to 32GB). Format it to FAT32 with a 4096-byte allocation size . The Marlin community has created an optimized configuration
Users have pointed to versions around the v3.40 (24OCT22) era for stable, stock-like operation.
~135.1 steps/mm (Calibrate this for your specific extruder) Troubleshooting Firmware Issues
, though they operate in "standalone mode," meaning they cannot be configured via software (UART/SPI) without hardware modification. Key Firmware Features Fast Print Mode: The headline feature that purportedly allows speeds up to
The Ultimate Guide to SUNLU T3 Firmware: Update, Customize, and Optimize By understanding the basics of firmware, the benefits
If the firmware changed how the printer handles temperatures, run a PID tune for the hotend and bed to avoid temperature fluctuations. 3. Verify Steps/mm
Adjusts acceleration and jerk settings to actually achieve the advertised 250mm/s limits safely. Option 1: Official Sunlu T3 Factory Firmware
: Format a microSD card (8GB or smaller is best) to FAT32 with a 4096 allocation unit size .
Note the main chip configuration (commonly an or GD32 micro-controller).