Haltefix for MSA AutoMaXX

This is a 3D printable Haltefix-style bracket designed for use with MSA self-contained breathing apparatus (SCBA), such as the AutoMaXX regulator. The bracket mounts on the harness strap (shoulder or waist) and securely holds the demand valve before connection to the mask, helping to prevent damage or contamination.

Features

• Snap-fit locking slot for standard MSA regulator plug
• Compact and lightweight design
• Can be mounted on left or right strap

Printing Recommendations

To ensure durability and resistance to mechanical stress and outdoor conditions (heat, UV, impact), it is strongly recommended to print this part with high-strength filaments such as:

• ASA – best for UV and weather resistance
• PETG – good flexibility and strength
• PC (Polycarbonate) – excellent mechanical strength (if your printer can handle it)
• ABS – acceptable alternative if printed in an enclosure

Infill: 60–100%
Layer height: 0.2 mm
Perimeters: 3 or more
Supports: Only if your printer needs them for overhangs

Brimm: yes

⚠️ Disclaimer

This model is not certified PPE and should be tested thoroughly in non-critical conditions before field use. Always follow your fire/rescue service’s equipment guidelines.