-if use E3D-Volcano head for highspeed printing
-added slim version fn covers.
-small empty area for hotend cables and other small modifications on main parts.
-alternative part cooler +2mm
-fitted optical runout sensor
-90 degree fan covers
MOST recommended thing: https://www.thingiverse.com/thing:3203831
-included S3d profiles for ender-3 (1mm retract :-)
My extruder calibration value e_step/mm: 436.8
All printers need extruder calibration!!!
Most recommended changing motherboard to MKS GEN L.
Original MB has less memory for these functions.