Don't Touch Knob

After connecting a Raspberry Pi and setting up OctoPrint, the knob is now a little redundant.  So you might need a reminder not to touch it.

Alternatively, sometimes you just need to communicate to others not to touch the printer.  This conveys that message.

Two versions are included.

• ‘Whole_StopKnob.stl’ - For those comfortable with changing the filament color or painting.  
  • This includes the entire model.
• Redpart_StopKnob.stl' and ‘WhiteParts_StopKnob.stl’ - Print separately and glue together.  
  • Redpart has an inset for lining up the letters and Octogon in WhitePart.  
  • Whitepart is chamfered at the base to ensure good fit.