Upd - Two Trees Sapphire Pro Firmware

The Ultimate Guide to Two Trees Sapphire Pro Firmware Update (Upd): Boosting Performance & Reliability

Published by: 3D Printing Tech Desk
Reading time: 8 minutes

If you own a Two Trees Sapphire Pro, you know it is a formidable CoreXY 3D printer capable of outstanding print quality. However, like all advanced 3D printers, its brain—the firmware—needs periodic maintenance. Whether you are chasing better thermal management, quieter stepper motors, or fixing a persistent bug, learning the correct Two Trees Sapphire Pro firmware upd process is essential.

This guide covers everything: from identifying your current board version to compiling Marlin 2.1.x, performing the flash, and common troubleshooting.

Appendix A: Quick Command Summary

| Action | Key sequence / file | |--------|----------------------| | Enter DFU (rare) | Hold reset + boot0 on mainboard | | LCD touch calibration | Create reset.txt on SD root | | Factory reset | Send M502 then M500 via serial | two trees sapphire pro firmware upd

To update the firmware on a Two Trees Sapphire Pro , you typically copy a compiled .bin file to a formatted SD card and restart the printer. The motherboard (usually an MKS Robin Nano) automatically detects and flashes the new file on boot. 🛠️ Update Procedure

Prepare the SD Card: Use a FAT32-formatted microSD card (16GB or smaller recommended).

Download Firmware: Obtain the correct .bin file for your specific motherboard and driver configuration. The Ultimate Guide to Two Trees Sapphire Pro

Rename File: The file must usually be named Robin_nano35.bin for the printer to recognize it during the boot process.

Flash: Insert the card into the powered-off printer and turn it on. A progress bar or update screen should appear.

Clean Up: Once finished, delete the file from the SD card to prevent the printer from re-flashing every time it starts. 📂 Firmware Options Appendix A: Quick Command Summary | Action |

Users typically choose between three main types of firmware:

Here is informative text regarding the Two Trees Sapphire Pro firmware update process.

Step 5 – Flash the Printer

1. Turn off the Sapphire Pro.
2. Insert the SD card into the printer's mainboard slot (not the LCD card slot — use the side slot on the electronics box).
3. Turn the printer on. The LCD screen will go blue for a few seconds, then show the Marlin boot screen.
4. Wait 30 seconds. The printer will automatically flash the firmware.
5. Remove the SD card immediately after boot completes, or the flash will repeat on the next power cycle.

Firmware Options

• Stock firmware
  • Pros: tailored to shipped hardware, vendor-tested.
  • Cons: slow updates, limited features.
• Marlin (community forks)
  • Pros: widely supported, many features (babystepping, advanced thermal protection, linear advance, input shaping support via firmware or via host).
  • Cons: requires configuration changes, potential for misconfiguration.
• Klipper
  • Pros: host-based control with higher step rates, advanced motion algorithms, easier tuning for input shaping.
  • Cons: requires secondary device (Raspberry Pi), network setup, different failure modes.
• Others (RepRapFirmware, proprietary forks) — brief mention.

2. Homing Direction

Test homing immediately. If it moves away from endstops, invert the direction flags:

$23=1   (invert homing direction)

2. Prerequisites

| Item | Specification / Note | |------|----------------------| | Printer | Two Trees Sapphire Pro (stock control board: MKS Robin Nano V3.x or similar) | | Computer | Windows 10/11, Linux, or macOS with USB-A port | | USB Cable | Type-A to Type-C (data‑sync capable) | | MicroSD Card | 8–32 GB, FAT32 formatted | | Firmware File | Robin_nano_v3.bin (or similarly named) from official Two Trees / GitHub | | Software | Cura, Pronterface, or any serial terminal (115200 baud) |

4. How to Update (Step-by-Step)

Error 4: "Laser won’t fire" in LightBurn

• Cause: New firmware uses M4 (dynamic power) instead of M3.
• Fix: In LightBurn Device Settings, change “Laser Mode” from M3 to M4 constant power.

Prerequisites: Before You Start the Two Trees Sapphire Pro Firmware Upd

Do not skip this section. A failed firmware update can brick your printer's mainboard (though usually recoverable via bootloader).