Amp push-button for NAD/Proton

thingiverse

I'm swapping out a part for my amp, a vintage Proton 520 model. The design shares many similarities with NAD amplifiers from the same era, as both were manufactured in the same factory at that time. To achieve a precise fit, I recommend using a 0.25 mm nozzle during the printing process. After the print is complete, a gentle water-sanding motion using 400 or finer grit sandpaper will help to smooth out any rough edges. For an extra glossy finish on exposed surfaces, consider applying car polish or heating (re-melting the PLA) to achieve a high shine.