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Press-Fit Replacement Lamp Switch Knob

Generate a press-fit replacement knob for an existing rotary lamp-switch stem. Customize stem diameter, length, tooth angle, and clearance.

Replace a missing knob without replacing the lamp’s rotary switch. This design press-fits over an existing non-threaded or toothed switch stem and can be adjusted to match its diameter, exposed length, surrounding ring, and tooth angle.

What to Measure

  • Exposed switch-stem diameter
  • Exposed stem length
  • Outer diameter of the surrounding ring
  • Position or angle of the stem’s tooth or flat, if present

Does your lamp have a threaded stem? Use the Replacement Lamp Switch instead.

Printing Technology: FDM

Layer Height: 0.2 mm

Perimeters: 4

Infill: 10%

Infill Pattern: Gyroid

Recommended Material: PLA, PETG, ABS

Supports: No

Support Type: None

Notes:

- Print with top of knob on build plate

Assembly Instructions

Materials Needed: 
1. Missing knob
1. Lamp

Instructions:
1. Print
2. Replace!

Customize Model


min: 2 mm, max: 10 mm

min: 5 mm, max: 15 mm

min: 5 mm, max: 20 mm


min: 0 deg max: 90 deg

min: 0 mm, max: 5 mm

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Measure twice, customize once.

Something doesn't look right, or not sure what a setting means?

Download your design

Choose a file below and open it in your slicer. For designs with several components, download every part you need. Original files use the design defaults; your customized files appear here after generation.

Batch runs are a 3-step flow. You can revisit any step at any time.

Generates exactly N editable rows (1 to 200).
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