Two Trees Sapphire Pro Firmware Best

Since the (and its siblings, the Plus and Zero) uses an open-source motherboard (typically an MKS Robin Nano), "Best Firmware" is not a single answer. It depends on whether you want stability or advanced features.

| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | | Wrong serial port in printer.cfg | Run ls /dev/serial/by-id/* and copy the result into your config. | | Thermal runaway on boot | Incorrect thermistor type | Set sensor_type: NTC 100K B3950 in the [extruder] section. | | Layer shifts at high speed | Overloaded stepper current | In Klipper, set run_current: 0.800 (for TMC2209 drivers). | | BLTouch fails to deploy | Wrong pin mapping | Use control_pin: PC14 for the SKR 1.4 Turbo. | two trees sapphire pro firmware best