Sunlu T3 Firmware 【Limited Time】

Fixes issues where cooling fans might not activate properly during heating.

Allows real-time babystepping to adjust the first layer height while printing. Official vs. Custom Options SUNLU T3 3D Printer review----from the-gadgeteer

The Sunlu T3 entered the market as a high-speed budget 3D printer, boasting print speeds up to 250mm/s out of the box. However, achieving and maintaining that performance depends heavily on the brain of the machine: its firmware.

If the printer no longer boots or the screen stays blank: sunlu t3 firmware

Define the correct chip architecture (e.g., BOARD_RAMPS_14_RE_ARM or specific GD/STM targets). Bed Size: Set X and Y axes to 220x220 and Z axis to 250 .

I’ve been trying to locate the official firmware for the (which is essentially a rebranded/slightly modified Ender 3 variant). So far, the info seems scattered. Here’s what I’ve gathered – please add if you know more.

Before downloading anything, turn off your printer, unscrew the bottom panel, and look at the large circuit board. Fixes issues where cooling fans might not activate

Currently, the community is working on porting to the Sunlu T3 via a custom Marlin build. Because the T3 has a lightweight bed and a rigid frame, it is capable of printing at 120mm/s with proper firmware.

This article dives deep into everything you need to know about the Sunlu T3 firmware, including how to identify your mainboard, where to find the correct files, how to flash them safely, and how to compile your own custom firmware.

Marlin is the open-source standard for 3D printer firmware. Compiling your own Marlin build allows you to unlock features that Sunlu disables by default. Key Marlin Features to Enable for T3: Bed Size: Set X and Y axes to 220x220 and Z axis to 250

The Ultimate Guide to Sunlu T3 Firmware: Updates, Flashing, and Klipper

Z-offset or probe offsets are incorrectly defined in the new firmware workspace.

If you’d like, I can: