This option was one of the first major community projects to bring Marlin 2.0 to the Sapphire Pro. It's built directly for the MKS Robin Nano board and incorporates the LittlevGL (LVGL) library for a graphical user interface (GUI). While the original repository is now tagged as an older version, its legacy lives on, with many newer forks directly referencing it.
Ensure it is named correctly (usually robin_nano.bin or robin_nano35.bin depending on the board) TwoTrees Wiki .
RepRapFirmware (RRF) is less common but highly regarded by advanced makers who modify their Sapphire Pro with Duet boards or use the Fly-CDY/MKS boards compatible with RRF. Why It Excels two trees sapphire pro firmware best
Smoother movements and less vibration. Babystepping: For perfect first layers. 3. Foxies Marlin: The "Plug and Play" Choice
Setting up Klipper on the Sapphire Pro involves installing the KIAUH (Klipper Installation And Update Helper) script on a Pi, then compiling the specific Klipper firmware for your board. The effort is well worth it. The result is a printer you can control via the powerful Mainsail or Fluidd web interfaces, with advanced features like Input Shaping and Pressure Advance that dramatically improve print quality at high speeds. This option was one of the first major
Enables Thermal Runaway Protection, which is sometimes disabled or poorly configured on stock factory firmware.
Like Klipper, you can change settings via text files without compiling code. Ensure it is named correctly (usually robin_nano
is the absolute best choice for maximum speed, advanced features, and ease of tuning.