Updates often fine-tune acceleration and jerk settings, which are critical for the T3's high-speed printing capabilities.
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After a firmware update, it is highly recommended to recalibrate your machine:
Based on Marlin 2.1.2, this firmware is known for its stability. It is available on Printables . Note: Users have reported that this specific version may not support USB connection , relying entirely on SD card printing. Sunlu T3 Firmware Update
Sunlu updates its firmware via the MicroSD card slot located on the front or side of the printer control box. Follow these steps precisely: Step 1: Download the Official Firmware
The most reliable way to get the correct firmware for your specific batch of the T3 is to email their support team directly.
A computer with Visual Studio Code (VS Code) installed, alongside the and Marlin Auto Build extensions (if compiling from scratch). If you share with third parties, their policies apply
If you truly want to unlock the "Fast Print" capabilities of the Sunlu T3 without sacrificing print quality, transitioning to Klipper firmware is highly recommended. Klipper offloads the heavy computational math from the printer's 8-bit or 32-bit low-power mainboard onto a more powerful secondary computer, like a Raspberry Pi or BigTreeTech CB1. Step 1: Generate the Klipper Micro-Controller Code SSH into your Raspberry Pi running MainsailOS or FluiddPI. Run the command: cd ~/klipper && make menuconfig .
Before flashing any files, gather the necessary tools to prevent bricking your printer's mainboard. Hardware Requirements
If you need help finding the right software file, let me know your printer uses or if you are looking for stock, custom Marlin, or Klipper firmware. Share public link After a firmware update, it is highly recommended
If you want to maximize the "Terminator" speed of your T3, migrating to Klipper is the ultimate upgrade. Klipper offloads the heavy processing math to a secondary computer (like a Raspberry Pi), enabling incredibly high printing speeds via Input Shaping and Pressure Advance without sacrificing quality.
to access the bottom electronics enclosure. Remove the screws securing the mainboard cover.