Parametric Light Knob
thingiverse
To fix your house's light switches with missing knobs, print STL files and attach the knobs if they match the 2mm-wide, 6mm-tall prongs that stick 12mm in and have 6.5mm 'dents'. If not, customize the OpenSCAD script to generate knobs based on your switch's measurements. Choose from rectangular, cylindrical or spherical shapes, but note that the latter two require support. Print the rectangular ones facing down for a neat appearance. Don't worry about the photo quality; it was taken late and with fatigue.
With this file you will be able to print Parametric Light Knob with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Parametric Light Knob.