The V6 PC4-01 Bowden Connector is a type of fitting that is used to connect a Bowden extruder to a hotend in a 3D printer. The Bowden extruder is a type of extruder that is designed to be lightweight and compact, and is typically mounted on the frame of the printer, away from the hotend.

The V6 PC4-01 is a specific type of connector that is manufactured by the company E3D, and it is designed to fit their V6 hotend. The "PC4-01" in the name refers to the type of connector, which is a PC4-M6 fitting, a type of Pneumatic fitting, that is used to connect the Bowden tube to the hotend.

The Bowden Connector is typically made of brass and is designed to be durable and leak-free. It is used to connect the Bowden tube to the hotend and allows for the filament to be fed into the hotend. The V6 version of the Bowden Connector is designed to be smaller and more compact than previous versions and is compatible with a wide range of filaments.

The V6 PC4-01 Bowden Connector is a common component in the 3D printing community and is considered to be a reliable and high-performance option for those who want to achieve high-quality prints and fine details. It is widely used among the 3D printing enthusiasts and professionals, specially those who are using Bowden extruder.

These V6 PC4-01 Bowden Connectors are classic Pneumatic Quick Push Connectors (PC), also known as a John Guest fittings, which are perfect for Bowden-style extruder assemblies as secure but versatile connections that can be quickly plugged in and unplugged as necessary. This is to help make 3D Filament jams a lot easier to fix, as you can disconnect the PTFE tubing near the extruder body or hotend assembly to remove any broken filament, but without having to disassemble the entire connection system between the extruder and the hotend.

Despite the seemingly large 4.1mm hole diameter, this fitting is designed for 1.75mm filament, but accommodates the 4mm diameter of the PTFE Tubing used in Bowden-Style extruder setups. This tubing is then firmly and securely held in place, as it guides the filament into Hotend Assemblies where it can be melted and extruded to form beautiful, complex or high-strength prints.