This is my take on eclsnowman's HercuStruder design. https://www.youmagine.com/designs/hercustruderThis uses almost all of the same parts except for a new base. This design does not have a mounting method for the steppers by itself. You will need someone to mount with.As the base is mirrored you will need to invert your second extruder in order for filament to flow the correct direction.