The Two Trees Sapphire Pro is a popular CoreXY 3D printer known for its solid hardware but often criticized for its stock MKS Robin Nano firmware. To achieve the "best" performance, the choice depends on your technical comfort level and whether you prefer standalone operation or network-based control.
Installation: Simply download the Robin_nano35.bin file, place it on a FAT32-formatted SD card, and restart the printer. 2. Best for High Performance: Klipper two trees sapphire pro firmware best
Pros:
Avoid the random “Sapphire Pro Ultra” firmware files found on obscure Facebook groups or Telegram channels. Also, skip any firmware based on Repetier for this machine—the board architecture isn't optimized for it, and you'll lose USB stability. The Two Trees Sapphire Pro is a popular
If you prefer a standalone printer and want to keep using the built-in touchscreen, a custom Marlin 2.0+ build is the best path. What is the difference between Marlin and Klipper firmware? If you prefer a standalone printer and want
For users who switch between CNC milling and laser engraving, a heavily customized Marlin 2.1.x build is the gold standard.
The Two Trees Sapphire Pro is a beloved machine in the budget 3D printing community. Known for its rigid CoreXY kinematics and impressive print quality out of the box, it offers a solid foundation for makers. However, like many budget printers, its stock firmware can leave users wanting more in terms of safety features, interface usability, and print reliability.