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Change gear module to use 'undef' as default value for circular_pitch and diametral_pitch parameters. This seems to make

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more sense than using 'false'.
This commit is contained in:
gizmoplex 2015-12-05 17:53:29 -05:00
parent 526aa67e1c
commit 6474be3183
1 changed files with 2 additions and 2 deletions
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4
involute_gears.scad
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@ -295,7 +295,7 @@ module involute_bevel_gear_tooth (
module gear ( module gear (
number_of_teeth=15, number_of_teeth=15,
circular_pitch=false, diametral_pitch=false, circular_pitch=undef, diametral_pitch=undef,
pressure_angle=28, pressure_angle=28,
clearance = false, clearance = false,
gear_thickness=5, gear_thickness=5,
@ -315,7 +315,7 @@ module gear (
echo("MCAD ERROR: gear module needs either a diametral_pitch or circular_pitch"); echo("MCAD ERROR: gear module needs either a diametral_pitch or circular_pitch");
//Convert diametrial pitch to our native circular pitch //Convert diametrial pitch to our native circular pitch
circular_pitch = (circular_pitch!=false?circular_pitch:pi/diametral_pitch); circular_pitch = (circular_pitch!=undef?circular_pitch:pi/diametral_pitch);
// Calculate default clearance if not specified // Calculate default clearance if not specified
clearance = (clearance!=false?clearance:0.25 * circular_pitch / pi); clearance = (clearance!=false?clearance:0.25 * circular_pitch / pi);