You Design Own Custom Knob Generator DJ Set - Geometric Elegance and Usage Simplicity

In less than 1 minute in a few steps and with no need of installed CAD software you can customize and generate your own knob. YES IT IS THAT EASY!!!

I wrote OpenScad code for generating custom knobs with editable geometric parameters.

• The radius is a quadratic (parabolic) function of height giving options for inward or outward curvatures. Feel free to edit with your own equation and resulting shape.

• Smoothness or grip feel can also be adjusted, along with knob height, and other parameters.

• I created 11 different preset style options to choose from that are also editable for those more OpenScad capable.

• The possibilities are truly infinite, I generated 20 representative examples just to you give you some ideas. I printed 15 of them and added some real make pictures.

• I recreated the knob hole to match the Hercules knob hole CAD model.

• You are more than welcome to use actual OpenScad software, but it is not necessary. Instead you can go to the online tool link below which is faster and easier to use for my knob generator code.

WebTool Link, OpenScad Playground: https://ochafik.com/openscad2/

Four Simple Steps Below (also available in downloadable pdf file):

THAT'S IT! Viola, you have your own custom knob :)

Printing Tips:

• With my generated examples they were easy to print. No supports or brim needed.

• I printed successfully using Sunlu PLA with layer height 0.2mm and either 0.4mm or 0.6mm nozzles. 

APPENDIX (Extra Info):

• The 11 different "stand_style" options adjust the number of columns, their rotation/twist, and any oscillatory behavior. I gave them the following descriptive names:

//stand_style = 0 "Cross-cross"
//stand_style = 1 "Lattice"
//stand_style = 2 "Twist"
//stand_style = 3 "Non-Rotating"
//stand_style = 4 "Zig-Zag"
//stand_style = 5 "Less Twist"
//stand_style = 6 "More Latticey"
//stand_style = 7 "Wavy"
//stand_style = 8 "Faster Wave"
//stand_style = 9 "Four Triplets"
//stand_style = 10 "Eight with Gaps"

• The parameter "ring_segments" adjusts the number of sides/faces for spiraled columns (composed of connected spheres/rings). A larger number makes the columns look more round. It does increase the rendering time.

• More Info on OpenSCAD playground web tool:

  • https://github.com/openscad/openscad-playground/blob/main/README.md 

• As a Bonus I have included the negative Hercules Knob hole model in OpenSCAD and STL formats. You can use these to generate your own knobs with other models.

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Looking for a sporty or Sci-Fi themed knob, check out my other models: