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Updated gear module to correct calculations for circular_pitch and diametral_pitch.

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gizmoplex 2015-12-05 13:41:25 -05:00
parent 73909f3a0f
commit a5fb4d884b
1 changed files with 2 additions and 2 deletions
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4
involute_gears.scad
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@ -315,10 +315,10 @@ module gear (
echo("MCAD ERROR: gear module needs either a diametral_pitch or circular_pitch");
//Convert diametrial pitch to our native circular pitch
circular_pitch = (circular_pitch!=false?circular_pitch:180/diametral_pitch);
circular_pitch = (circular_pitch!=false?circular_pitch:pi/diametral_pitch);
// Pitch diameter: Diameter of pitch circle.
pitch_diameter = number_of_teeth * circular_pitch / 180;
pitch_diameter = number_of_teeth * circular_pitch / pi;
pitch_radius = pitch_diameter/2;
echo ("Teeth:", number_of_teeth, " Pitch radius:", pitch_radius);