Pneumatic couplings are small fittings used in 3D printing to connect air tubes to the printer's pneumatic system. These couplings are typically made of brass or plastic and have a quick-connect feature that makes it easy to attach and detach air tubes.
In a 3D printer, pneumatic couplings are used to control the flow of air that powers various components such as the extruder, the filament feeder, and the cooling fans. For example, the extruder's pneumatic system relies on air pressure to push the filament through the nozzle and onto the print bed. The pneumatic couplings ensure a secure and leak-proof connection between the air tubes and the various components.
Pneumatic couplings are an important component of 3D printing, as they help to ensure consistent and reliable operation of the printer's pneumatic system. They are available in various sizes and configurations to fit different types of 3D printers and pneumatic systems.