Updating your Sunlu T3 firmware is one of the most effective ways to transform a budget-friendly high-speed printer into a reliable powerhouse. While the stock firmware is functional, moving to updated or custom builds unlocks the true potential of the machine's hardware. Why Updating Your Sunlu T3 Firmware Makes It Better
If the update enabled higher speeds, ensure your physical hotend can keep up with the flow rate. You may need to increase your printing temperature by 5–10°C. sunlu t3 firmware update better
New firmware often wipes your bed leveling data. Re-level your bed and set your Z-offset immediately to avoid crashing the nozzle into the build plate. Troubleshooting Common Issues Updating your Sunlu T3 firmware is one of
If you used a custom Marlin build, the motor directions might be inverted in the code. You will need to recompile or find a T3-specific build. You may need to increase your printing temperature
More control over baby-stepping and live Z-offset tuning. Understanding Your Options: Stock vs. Custom
