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.

Precise & Durable - Quality PTFE tubing made in Germany

Manufactured specifically for 3D printing with 1.78mm filament, the HD Tube offers much more precise filament guidance than conventional standard PTFE tubing due to its adjusted inner diameter of 1.9mm and excellent slip and non-stick properties.

Common PTFE tubes, which usually come from the field of pneumatic control, create with their standard inner diameter of 2mm too much unnecessary clearance for the 1.78mm filament, which causes extreme tolerances in the filament feed, depending on the Bowden length. As a result, the precise control of retracts is made more difficult and the print quality is adversely affected.

The precise inner diameter of the HD Tube of 1.9mm, its high Shore hardness of 70 ShoreD as well as the excellent sliding properties and a temperature resistance up to 260°C make it the ideal upgrade for 1.78mm Bowden extruder systems with 4mm outer diamter.