| File | Purpose | |------|---------| | Marlin-Chiron-1.3.5.hex | The main firmware file for the motherboard | | DGUS_Chiron_135.hex or .bin | The LCD screen firmware (critical for touchscreen) | | Configuration.h & Configuration_adv.h | Source files for advanced users | | readme.txt | Checksums and installation order | | probe_offset.gcode | Optional G-code for sensor calibration |

If you own an Anycubic Chiron, you know it’s a beast of a 3D printer. With its massive 400x400x450mm build volume, it promises big prints. However, many users have struggled with the stock user interface, thermal runaway protections, and quirky bed-leveling sensors.

Here is why the repack is superior: The Anycubic Chiron uses a Trigorilla motherboard (often version 0.0.2, 0.0.3, or 0.0.4). The repack ensures the pin mappings, thermistor tables, and stepper driver currents are correct. Using a vanilla Marlin build can brick your LCD. 2. Fixed Bed Leveling Routine Stock firmware measures 25 points but often fails to save them. The repack version (1.3.5) includes a patched G29 command that actually stores the mesh to EEPROM persistently. 3. Safety First The community repack enables true thermal runaway protection . If your thermistor falls out or your heater cartridge stays on, the printer will halt with a warning instead of catching fire. 4. Improved LCD Menu The repack unlocks hidden menus: "Babystep Z," "Change Filament," "PID Autotune," and "Mesh View." Where to Find the Safe "Anycubic Chiron firmware 135 download repack" Warning: Be careful of random Google Drive links or sketchy forum posts from 2019. Some repacks contain incorrect baud rates (250000 vs 115200) that cause "No Printer Attached" errors.