Our two A5 / A3S MKII upgrades consist of three components, which together represent a considerable improvement on the conventional printhead.
The first upgrade is the "JG Dual MKII". Which works like other known systems with 2 Bowden extruders to alternately load the filament. With this printhead it is now possible to use soluble filament for support structures, making it possible to print extremely complicated parts with many overhangs and then to clean them in a solvent bath.
The second upgrade is the "JG Titan MKII". This upgrade allows the conversion to a direct extruder in the Titan Still (Deisgn by E3D) feed. The advantages are the precise control of the filament feed, which allows easier and clean printing of detailed parts and provides better surfaces.