Applications and Implications

The final project developed during Fab Academy is called FAB Encloser, an intelligent filament drying and storage chamber designed for FDM 3D printing materials.

The system combines environmental monitoring, temperature control, remote supervision, and safety functions inside a compact enclosure. The objective is to maintain filament in optimal conditions before and during printing processes.

Many thermoplastic materials such as PLA, PETG, Nylon, TPU, and ABS absorb moisture from the environment. This humidity can negatively affect print quality, causing bubbling, poor layer adhesion, inconsistent extrusion, and dimensional inaccuracies.

FAB Encloser was designed to solve this problem by providing a controlled environment where temperature and humidity can be monitored and regulated automatically.

The system is intended for a wide variety of users involved in additive manufacturing and digital fabrication.

• Fab Academy students.
• Makers and hobbyists.
• Educational institutions.
• Research laboratories.
• Professional prototyping workshops.
• Small-scale manufacturing businesses.
• 3D printing service providers.

Any user working with hygroscopic materials can benefit from maintaining filament under controlled environmental conditions.

FAB Encloser can be used in multiple scenarios where filament quality is critical.

Filament Drying

The primary application is the removal of absorbed moisture from thermoplastic filaments before printing.

Long-Term Storage

The enclosure provides a controlled environment that helps preserve filament properties during long storage periods.

Print Preparation

Users can prepare materials before starting a print, ensuring better extrusion consistency and reducing printing defects.

Remote Monitoring

Through the Raspberry Pi 5 and custom interface, environmental conditions can be monitored remotely from a computer.

Educational Tool

The project can also be used as a teaching platform to demonstrate embedded systems, sensors, user interfaces, IoT concepts, and digital fabrication workflows.

Several commercial filament dryers already exist; however, most of them provide limited functionality and little flexibility.

FAB Encloser introduces several additional capabilities:

• Custom fabricated enclosure.
• Real-time temperature monitoring.
• Real-time humidity monitoring.
• Automatic heater control.
• Automatic ventilation control.
• Integrated OLED display.
• Live camera monitoring.
• Remote control interface.
• Emergency stop function.
• Open-source hardware and software.

These characteristics transform the project from a simple filament dryer into a complete environmental management system.

One of the indirect benefits of FAB Encloser is the reduction of material waste generated by failed prints.

Moist filament often causes printing defects that require parts to be discarded and reprinted. By improving filament quality, the system contributes to reducing unnecessary plastic consumption.

The enclosure was also designed using durable materials such as galvanized steel and acrylic, increasing its service life and reducing replacement frequency.

Although the system successfully achieves its main objectives, some limitations remain.

• Temperature uniformity can still be improved.
• Humidity control is currently based on ventilation only.
• The system is designed for a limited chamber volume.
• Energy consumption depends on operating temperature.
• The interface currently runs on a local network.

These limitations provide opportunities for future iterations and continued development.

Several enhancements could be incorporated into future versions of the project.

• Cloud connectivity.
• Mobile application support.
• Automatic humidity regulation.
• Multiple temperature profiles.
• Machine learning-based prediction of drying time.
• Energy consumption monitoring.
• Automatic filament identification.
• Integration with 3D printers.

These improvements would transform FAB Encloser into a complete smart filament management ecosystem.