Firmware Best | Two Trees Sapphire Pro

Two Trees Sapphire Pro , the "best" firmware depends on whether you want a stable, easy-to-install experience or high-performance speeds. Top Firmware Options

  1. Backup Your Settings: If you can, note down your current E-steps (extruder steps per mm) and Z-offset values. These may reset during a firmware flash.
  2. Check the Screen: The Sapphire Pro usually uses a standard TFT screen. Ensure the firmware you download is configured for the correct display type (usually REPRAP_DISCOUNT_SMART_CONTROLLER or similar in Marlin config).
  3. Inverter Cables: Some older Sapphire Pro units had inverted Y-axis cabling. If you flash new firmware and your Y-axis moves the wrong way, you can either swap the physical plug on the motherboard or invert the INVERT_Y_DIR setting in the firmware source code.

Post-flash tuning

  • Run PID autotune for hotend and bed.
  • Calibrate E-steps and flow.
  • Print calibration cubes, tuning towers, and do test prints for stringing and retraction.
  • If enabling INPUT_SHAPER, use an accelerometer and run the resonance test to get correct parameters.

3. What to Avoid

  • Stock firmware (old Marlin, missing safety & quality features).
  • Precompiled “universal” binaries – pinouts differ between Sapphire Pro revisions.
  • RepRapFirmware (RRF) – not natively supported on the stock board (would need board swap to Duet).

Top 5 Benefits of the Best Firmware Upgrade

Once you switch to the optimal Klipper setup, you will immediately notice: two trees sapphire pro firmware best