CTC PRUSA i3 Pro B Bowden Drive with Autoleveling

thingiverse

It appears that you are upgrading your GEEETECH Prusa i3 printer's firmware to Marlin. Here is a step-by-step guide based on the text: **Step 1: Prepare and Install the J Hotend** * Remove the original hotend and install the new J hotend. * Connect the extruder mount, retainer, and duct from the HEVO project. **Step 2: Upgrade Bootloader** * Watch a YouTube video on how to upgrade the bootloader. * Use a standard SD card cable and breadboard wires to connect it. **Step 3: Solder Connections to Board** * Solder the 5V and Ground connections to the board using a connector for easy disconnect. **Step 4: Backup Original Settings** * Take a backup of the original settings: ``` 15:07:46.286 : echo:Hardcoded Default Settings Loaded 15:07:46.286 : echo:Steps per unit: 15:07:46.287 : echo: M92 X78.74 Y78.74 Z2560.00 E105.00 15:07:46.287 : echo:Maximum feedrates (mm/s): 15:07:46.287 : echo: M203 X400.00 Y400.00 Z2.00 E45.00 15:07:46.287 : echo:Maximum Acceleration (mm/s2): 15:07:46.287 : echo: M201 X1400 Y1400 Z100 E80000 15:07:46.287 : echo:Acceleration: S=acceleration, T=retract acceleration 15:07:46.287 : echo: M204 S1400.00 T5000.00 15:07:46.287 : echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s), Z=maximum Z jerk (mm/s), E=maximum E jerk (mm/s) 15:07:46.287 : echo: M205 S0.00 T0.00 B20000 X13.50 Z0.30 E5.00 15:07:46.287 : echo:Home offset (mm): 15:07:46.287 : echo: M206 X0.00 Y0.00 Z0.00 15:07:46.287 : echo:PID settings: 15:07:46.287 : echo: M301 P19.86 I1.00 D98.93 ``` **Step 5: Download, Configure, and Install Marlin** * Use the GEEETECH example in the examples folder as a base. * Use the attached Configuration.h file for reference with auto leveling enabled. **Step 6: Adjust Z-Axis and Save Settings** * Adjust the z-axis in the LCD until you get the nozzle in the correct location (mine was -0.25). * Save your settings. By following these steps, you should be able to upgrade your GEEETECH Prusa i3 printer's firmware to Marlin and enjoy improved performance and features.