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  • parametric

  • openscad

  • knob

  • extruder knob

  • potentiometer knob

Knob Factory
Print Profile(0)

  • Earn points by adding print configurations

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Released 2025-06-20
Details
Files(2)
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Summary

A parametric OpenSCAD design with 46 documented parameters that allows to generate many kinds of knobs. Examples include: small knobs for potentiometer inputs; knobs for turning the extruder or an axis of the 3D printer; water spout knobs etc..

This is a remix. The Thingiverse search for selecting the base design is broken atm, so I have to put it here: "Parametric Potentiometer Knob with OpenSCAD" by steevecooley, https://www.thingiverse.com/thing:20513

You should be able to use this in the Thingiverse Customizer. Otherwise use it in OpenSCAD directly, which is preferable anyway (and OpenSCAD is free!). When using it in OpenSCAD, the .json file provides configurations for some of the examples from the screenshot and for an Ender 2 extruder knob.

Parameter list

  • knob_radius_top, knob_radius_bottom
  • knob_height
  • knob_faces (number of faces on the circumference)
  • shafthole_radius, shafthole_height, shafthole_faces, shafthole_cutoff_arc_height (to create D shaped cross-sections)
  • enable_stem, stem_radius, stem_height, stem_faces, stem_transition_height, stem_transition_radius
  • enable_setscrew_hole, setscrew_hole_radius, setscrew_hole_height, setscrew_hole_faces
  • enable_top_rounding, top_rounding_radius, top_rounding_faces
  • enable_engraved_indicator (the arrow on top), engraved_indicator_scale, engraved_indicator_head_scale, engraved_indicator_shaft_scale, engraved_indicator_move_forward, engraved_indicator_depth
  • enable_external_indicator, external_indicator_height, external_indicator_length
  • enable_sphere_indents, sphere_indents_count, sphere_indents_radius, sphere_indents_faces, sphere_indents_center_distance, sphere_indents_cutdepth,
    sphere_indents_offset_angle
  • enable_cone_indents, cone_indents_count, cone_indents_faces, cone_indents_height,
    cone_indents_top_radius, cone_indents_bottom_radius, cone_indents_center_distance,
    cone_indents_cutdepth, cone_indents_offset_angle

Some possible uses for those who search: Ender 2 extruder knob, Ender 3 extruder knob, Ender 5 extruder knob, Ender 5 Pro extruder knob, potentiometer knob, water spout handle.

Print Settings

Rafts:

Doesn't Matter

                                            <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>Doesn't Matter</p></div>

Resolution:

0.15 – 0.25

                                            <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>40%</p></div>


Filament: generic PETG
                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>For knobs with a hole it's a good idea to print only the lower 5 mm at first and then abort the print. Then test if the hole diameter fits well on the shaft or if the measures have to be tuned further. Later print everything, but probably turned upside down, at least for models with a stem.</p></div>

Originality of the Model

The author declares that this work is their personally shared model

Original creator:
tanius
Reprint source:https://www.thingiverse.com/thing:4708988

This model is licensed under the following terms:

Credit must be given to the creator

Models(2)

  • Knob_Factory.json

    6.22 KB

    2025-03-19

  • Knob_Factory.scad

    16.83 KB

    2025-03-19

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