Sketchup 3D models and STL files for Boeing 737 NG Collins MCP knobs

The STL files are for cheap Chinese rotary encoders like these with 6 mm/4.5 mm D-axis and the  Concentric rotary encoder – band switch combi (4 mm brass rod / 6 mm axis), but the source designs are also available as Sketchup 2016 3D model below, so you can modify the hole for the axis to your own needs.

For fixing the knobs to the axes, holes are present for a 5.5 x 5.5 x 2 mm square nut and a cone point M3 x 5 mm screw.

Altitude knob

Sketchup 3D model of the knob without any holes (scale 1 to 100)

Sketchup 3D model of the knob with holes for square nut and M3 screw (scale 1 to 100)

Sketchup 3D model of the real size knob with holes for square nut and M3 screw

STL file of the real size knob with holes for square nut and M3 screw for 3D printing

Bank angle knob

Sketchup 3D model of the knob without any holes (scale 1 to 100)

Sketchup 3D model of the knob with holes for square nut and M3 screw (scale 1 to 100)

Sketchup 3D model of the real size knob with holes for square nut and M3 screw

STL file of the real size knob with holes for square nut and M3 screw for 3D printing

 

Heading knob

Sketchup 3D model of the knob without any holes (scale 1 to 100)

Sketchup 3D model of the knob with holes for square nut and M3 screw (scale 1 to 100)

Sketchup 3D model of the real size knob with holes for square nut and M3 screw

STL file of the real size knob with holes for square nut and M3 screw for 3D printing

 

Speed knob

Sketchup 3D model of the knob without any holes (scale 1 to 100)

Sketchup 3D model of the knob with holes for square nut and M3 screw (scale 1 to 100)

Sketchup 3D model of the real size knob with holes for square nut and M3 screw

STL file of the real size knob with holes for square nut and M3 screw for 3D printing

Course knob

Sketchup 3D model of the knob without any holes (scale 1 to 100)

Sketchup 3D model of the knob with holes for square nut and M3 screw (scale 1 to 100)

Sketchup 3D model of the real size knob with holes for square nut and M3 screw

STL file of the real size knob with holes for square nut and M3 screw for 3D printing

 

Vertical Speed wheel

Sketchup 3D model of the knob without hole (scale 1 to 100)

Sketchup 3D model of the knob with hole for rotary encoder with 6 mm D-axis (scale 1 to 100)

Sketchup 3D model of the real size knob with hole for rotary encoder with 6 mm D-axis

STL file of the real size knob with hole for rotary encoder with 6 mm D-axis for 3D printing

 

Vertical Speed wheel support

Sketchup 3D model of the real size vertical wheel support

STL file of the real size vertical speed wheel support for 3D printing

 

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