Marlin 1.1.9 Flsun Cube Stock, Chimera and Cyclops

thingiverse

**Firmware Update for FLSUN Cube Printer** Before attempting to flash this firmware on your printer, ensure that you are using the Ramps or MKS Gen L board with the stock drivers. This firmware is specifically designed for the Chimera version of the FLSUN Cube and is still a work in progress. It's essential to note that I'm not responsible for any damage to your printer, yourself, or any other mechanical device or living being if you decide to proceed with this update. **Flashing the Firmware** 1. Download the firmware file from the provided link. 2. Extract the contents of the zip file and transfer them to a microSD card. 3. Insert the microSD card into your printer's SD card slot and power it on. 4. The printer will automatically start updating the firmware. **Extruder Calibration** 1. Send `M503` to retrieve the current E-steps for both extruders. 2. Mark 120 mm (measured downwards from the extruder intake) with a pencil on the filament using a caliper or measuring tape. 3. Activate the first extruder by sending `T0`, then preheat it with `M104 S220`. 4. Send `G83` to prepare the extruder, followed by `G1 E100 F100`. This will feed 100 mm of filament (takes 60 seconds). 5. Measure where your pencil marking is now. If it's exactly 20 mm from the extruder, calibration is perfect. 6. Calculate new E-steps using the formula: `(100 mm / actually extruded filament) * current E-steps`. 7. Replace `xxx.xx` with the calculated value in `M92 T0 X80.00 Y80.00 Z400.00 Exxx.xx`. **Repeat steps 3-7 for the second extruder** **Touchscreen Upgrade** 1. Unzip the touchscreen firmware files using Winrar or 7zip. 2. Copy the extracted files to your SD card. 3. Insert the SD card into the printer and power it on. 4. The screen will automatically start updating (this may take a while). 5. When finished, remove any remaining files from the SD card and enjoy your new Red-themed touchscreen. **Special Thanks** I'd like to extend my gratitude to [davidramiro](https://www.thingiverse.com/davidramiro/about) for their invaluable assistance in creating this tutorial. **Other Notes** This firmware was tailored with the custom x-carriage (Thingiverse: 3680490) in mind.