Geeetech A20M E3D Chimera Upgrade

here is how i upgraded my A20M with a E3D Chimera Hotend. 3d printed chimera mount - https://www.thingiverse.com/thing:351... calibration cude - https://www.thingiverse.com/thing:127... dual extruder calibration print - https://www.thingiverse.com/thing:533814 3dbenchy - https://www.thingiverse.com/thing:763622 firmware - https://github.com/strid3r21/a20m-chi... (use at your own risk)