Replacement Inserts: Bachmaier Fidelity Ear Plugs

This model provides custom replacement inserts for the Bachmaier Fidelity ear plugs, available in two functional variants:

Included Versions

• Solid insert Offers slightly stronger damping than the original strong membrane insert (probably ab bit less dampening than maximum) when printed in PETG with 0.1 mm layers, 5 walls, 100% infill, and mild over‑extrusion (~103%). Ideal for users who want a bit more reduction without fully blocking sound.

• Spiral sound‑inlet insert Features a small spiral channel that allows controlled airflow and sound transmission. Its damping effect sits roughly between the original light and medium inserts when printed in PLA+ using the same settings.

Printing Notes

• Tested with PLA+ and PETG

• 0.1 mm layers, 5 walls, 100% infill

• Slight over‑extrusion improves sealing and fit

• No supports required

Important Disclaimer

These inserts are not medical devices. They are hobbyist 3D‑printed parts and should be used at your own risk. Fit, comfort, and acoustic performance may vary depending on material, printer calibration, and personal sensitivity.

This remix is designed for makers who want customizable damping, easy printing, and functional alternatives to the original Bachmaier Fidelity inserts.