universal radio replacement knob Knob

Universal radio replacement knob – 3D printable

Control knob designed as compatible replacement for Garmin radios, but suitable for most knobs ,optimized for 3D printing and for functional and durable use.

Main dimensions:

• Outer diameter: 25 mm
• Inner hole diameter: 6.5 mm

Construction features:

• Cylindrical body with vertical wavy knurling over the entire lateral surface, designed to ensure excellent grip and precise rotation control.
• Rounded top edge, which improves ergonomics and provides a clean and professional appearance.
• Reinforced internal structure composed of:
  • Central ring with 6.5 mm hole for coupling with the radio shaft
  • 4 symmetric radial spokes that connect the central hole to the internal crown, increasing torsional resistance and reducing the risk of breakage.
• Symmetric and balanced geometry, designed to ensure smooth and precise rotation without play.

Function and use:

• Replacement for worn or damaged original knob
• Volume control, menu navigation or function selection on compatible Garmin radios

3D printing instructions:

• Printable without supports
• Recommended materials:
  • PETG (ideal for marine environment)
  • PLA for standard use
  • ABS for greater thermal resistance
• Recommended print orientation: vertical axis for maximum resistance to torsional stress

Areas of application:

• Marine
• Repair and custom spare parts
• Functional prototyping