Two Trees Sapphire Pro Firmware Upd !!install!! -

$23=1 (invert homing direction) For diode lasers, set:

Have questions or found a better update method? Share your experience in the Two Trees Facebook Group or on the LightBurn forum—your insights could help the next user avoid a costly mistake. two trees sapphire pro firmware upd

Happy engraving – and happy updating!

If your engine no longer responds to PWM after a main board update, re-calibrate the laser frequency: $23=1 (invert homing direction) For diode lasers, set:

| Board Name | Chip | Typical Firmware | |------------|------|------------------| | Two Trees 32-bit board (TT V1.2) | STM32 | GRBL 1.1 or GRBLHAL | | MKS DLC32 | ESP32 | GRBL-ESP32 (FluidNC) | | Stock 8-bit board | ATmega328P | GRBL 0.9–1.1 | If your engine no longer responds to PWM

If you own a Two Trees Sapphire Pro laser engraver or CNC router, you know it’s a powerful machine capable of stunning detail and robust cutting. However, like any high-precision tool, its brain—the firmware —requires occasional updates to unlock new features, fix bugs, and improve safety. Searching for the term "two trees sapphire pro firmware upd" (short for update ) is a common first step for users experiencing issues like connection dropouts, homing failures, or compatibility problems with LightBurn.

$100=XX.XX (X-axis steps/mm) $101=XX.XX (Y-axis) $102=XX.XX (Z-axis for laser focus) Typical values for Sapphire Pro: X and Y ~80.0, Z ~400.0 (varies by leadscrew pitch). Test homing immediately. If it moves away from endstops, invert the direction flags: