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Function

The Encoder Knobs are press-fit caps for the RADR wireless remote’s rotary encoders. This component:
  • Provides an ergonomic grip surface for encoder control
  • Press-fits onto the encoder shafts
  • Features optional translucent sections for LED backlighting
  • Two knobs required per remote (left and right encoders)
SettingValue
Layer Height0.12mm
Walls4
Infill TypeGyroid
Infill Percentage25%
SupportsYes - Auto
Print with the shaft cavity facing upward for best surface quality inside the bore.

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Multi-Color Printing (Optional)

The knobs include a separate body for the backlight ring area:
AreaPurposeRecommended Material
Backlight ringShows encoder LED colorsTransparent/translucent
Main bodyGrip surfaceAny opaque color

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Installation

1

Prepare the part

Remove supports and lightly deburr the bore with a hobby knife or small round file.
The bore is clean and smooth; no support material remains inside.
2

Test fit on the encoder shaft

Align the knob with the encoder shaft. Do not force it—ensure alignment first.
Excessive force can damage the encoder. Apply steady, straight pressure only.
3

Press-fit the knob

Press straight down until fully seated. Repeat for the second encoder.
Knobs rotate smoothly and the remote registers encoder turns and clicks.

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Troubleshooting

  • Lightly ream the bore with a small round file or deburring tool.
  • Re-slice with −0.5% to −1% XY scale or use a negative horizontal expansion value.
  • Warm the knob slightly (hair dryer) and press-fit while warm.
  • Re-slice with +0.5% to +1% XY scale.
  • Add a thin wrap of PTFE/plumber’s tape to the shaft as a temporary shim.
  • Increase support Z-distance/interface layers.
  • Switch to tree supports or reduce support density.
  • Orient with the bore up to minimize internal supports.

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Download Files

STEP File

Download for CAD editing

3MF Project

Bambu Studio project with print settings