About this 3D model
Nothing fancy. This is a very basic replacement for a heater knob in a Honda Accord (Mine broke recently, so I made this one and printed it). It replaces this part: http://www.autopartswarehouse.com/details/QQHondaQQAccordQQOES_GenuineQQHeater_KnobQQ19961997QQW0133-1638723.html Included is the OpenSCAD files which can be potentially adjusted to fit other cars. You can also adjust the number of cylinders around the perimeter of the knob.