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https://github.com/BelfrySCAD/BOSL2.git
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Docs formatting and gear example image fixes.
This commit is contained in:
Garth Minette
parent
fc7518b343
commit
21e9dfa1bf
3 changed files with 190 additions and 187 deletions
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@ -174,16 +174,16 @@ function _gear_q7(f,r,b,r2,t,s) = _gear_q6(b,s,t,(1-f)*max(b,r)+f*r2); //
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// Example(2D):
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// gear_tooth_profile(pitch=5, teeth=20, pressure_angle=20, valleys=false);
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// Example(2D): As a function
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// stroke(gear_tooth_profile(pitch=5, teeth=20, pressure_angle=20, valleys=false));
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// stroke(gear_tooth_profile(pitch=5, teeth=20, pressure_angle=20, valleys=false), width=0.1);
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function gear_tooth_profile(
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pitch = 3,
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teeth = 11,
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pitch = 3,
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teeth = 11,
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pressure_angle = 28,
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clearance = undef,
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backlash = 0.0,
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interior = false,
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valleys = true,
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center = false
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backlash = 0.0,
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interior = false,
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valleys = true,
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center = false
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) = let(
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p = pitch_radius(pitch, teeth),
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c = outer_radius(pitch, teeth, clearance, interior),
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@ -212,27 +212,27 @@ function gear_tooth_profile(
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module gear_tooth_profile(
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pitch = 3,
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teeth = 11,
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pitch = 3,
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teeth = 11,
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pressure_angle = 28,
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backlash = 0.0,
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clearance = undef,
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interior = false,
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valleys = true,
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center = false
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interior = false,
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valleys = true,
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center = false
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) {
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r = root_radius(pitch, teeth, clearance, interior);
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translate([0,-r,0])
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fwd(r)
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polygon(
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points=gear_tooth_profile(
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pitch = pitch,
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teeth = teeth,
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pitch = pitch,
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teeth = teeth,
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pressure_angle = pressure_angle,
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backlash = backlash,
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backlash = backlash,
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clearance = clearance,
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interior = interior,
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valleys = valleys,
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center = center
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interior = interior,
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valleys = valleys,
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center = center
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)
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);
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}
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@ -269,15 +269,15 @@ module gear_tooth_profile(
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// path = gear2d(pitch=8, teeth=16);
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// polygon(path);
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function gear2d(
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pitch = 3,
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teeth = 11,
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hide = 0,
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pitch = 3,
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teeth = 11,
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hide = 0,
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pressure_angle = 28,
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clearance = undef,
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backlash = 0.0,
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interior = false,
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anchor = CENTER,
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spin = 0
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backlash = 0.0,
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interior = false,
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anchor = CENTER,
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spin = 0
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) = let(
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pr = pitch_radius(pitch=pitch, teeth=teeth),
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pts = concat(
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@ -285,13 +285,13 @@ function gear2d(
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each rot(tooth*360/teeth,
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planar=true,
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p=gear_tooth_profile(
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pitch = pitch,
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teeth = teeth,
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pitch = pitch,
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teeth = teeth,
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pressure_angle = pressure_angle,
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clearance = clearance,
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backlash = backlash,
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interior = interior,
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valleys = false
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backlash = backlash,
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interior = interior,
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valleys = false
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)
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)
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],
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@ -301,24 +301,24 @@ function gear2d(
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module gear2d(
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pitch = 3,
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teeth = 11,
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hide = 0,
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pitch = 3,
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teeth = 11,
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hide = 0,
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pressure_angle = 28,
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clearance = undef,
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backlash = 0.0,
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interior = false,
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anchor = CENTER,
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spin = 0
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backlash = 0.0,
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interior = false,
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anchor = CENTER,
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spin = 0
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) {
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path = gear2d(
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pitch = pitch,
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teeth = teeth,
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hide = hide,
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pitch = pitch,
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teeth = teeth,
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hide = hide,
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pressure_angle = pressure_angle,
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clearance = clearance,
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backlash = backlash,
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interior = interior
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backlash = backlash,
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interior = interior
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);
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pr = pitch_radius(pitch=pitch, teeth=teeth);
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attachable(anchor,spin, two_d=true, r=pr) {
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@ -330,9 +330,9 @@ module gear2d(
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// Function&Module: rack2d()
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// Usage: As a Function
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// path = rack2d(pitch, teeth, base, <pressure_angle>, <backlash>);
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// path = rack2d(pitch, teeth, height, <pressure_angle>, <backlash>);
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// Usage: As a Module
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// rack2d(pitch, teeth, base, <pressure_angle>, <backlash>);
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// rack2d(pitch, teeth, height, <pressure_angle>, <backlash>);
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// Description:
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// This is used to create a 2D rack, which is a linear bar with teeth that a gear can roll along.
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// A rack can mesh with any gear that has the same `pitch` and `pressure_angle`.
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@ -341,7 +341,7 @@ module gear2d(
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// Arguments:
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// pitch = The circular pitch, or distance between teeth around the pitch circle, in mm.
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// teeth = Total number of teeth along the rack
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// base = Height of rack in mm, from tooth top to back of rack.
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// height = Height of rack in mm, from tooth top to back of rack.
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// pressure_angle = Controls how straight or bulged the tooth sides are. In degrees.
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// backlash = Gap between two meshing teeth, in the direction along the circumference of the pitch circle
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#anchor). Default: `CENTER`
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@ -350,40 +350,43 @@ module gear2d(
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// "adendum" = At the tips of the teeth, at the center of rack.
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// "adendum-left" = At the tips of the teeth, at the left end of the rack.
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// "adendum-right" = At the tips of the teeth, at the right end of the rack.
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// "dedendum" = At the base of the teeth, at the center of rack.
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// "dedendum-left" = At the base of the teeth, at the left end of the rack.
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// "dedendum-right" = At the base of the teeth, at the right end of the rack.
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// "dedendum" = At the height of the teeth, at the center of rack.
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// "dedendum-left" = At the height of the teeth, at the left end of the rack.
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// "dedendum-right" = At the height of the teeth, at the right end of the rack.
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// Example(2D):
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// rack2d(pitch=5, teeth=10, base=5, pressure_angle=20);
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// rack2d(pitch=5, teeth=10, height=10, pressure_angle=20);
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// Example(2D): Called as a Function
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// path = rack2d(pitch=8, teeth=8, base=5, pressure_angle=28);
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// path = rack2d(pitch=8, teeth=8, height=10, pressure_angle=28);
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// polygon(path);
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function rack2d(
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pitch = 5,
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teeth = 20,
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base = 10,
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pitch = 5,
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teeth = 20,
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height = 10,
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pressure_angle = 28,
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backlash = 0.0,
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backlash = 0.0,
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clearance = undef,
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anchor = CENTER,
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spin = 0
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anchor = CENTER,
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spin = 0
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) =
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let(
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a = adendum(pitch),
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d = dedendum(pitch, clearance),
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d = dedendum(pitch, clearance)
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)
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assert(a+d < height)
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let(
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xa = a * sin(pressure_angle),
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xd = d * sin(pressure_angle),
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l = teeth * pitch,
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anchors = [
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anchorpt("adendum", [0,a,0], BACK),
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anchorpt("adendum-left", [-l/2,a,0], LEFT),
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anchorpt("adendum-right", [l/2,a,0], RIGHT),
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anchorpt("dedendum", [0,-d,0], BACK),
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anchorpt("dedendum-left", [-l/2,-d,0], LEFT),
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anchorpt("dedendum-right", [l/2,-d,0], RIGHT),
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anchorpt("adendum", [ 0, a,0], BACK),
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anchorpt("adendum-left", [-l/2, a,0], LEFT),
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anchorpt("adendum-right", [ l/2, a,0], RIGHT),
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anchorpt("dedendum", [ 0,-d,0], BACK),
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anchorpt("dedendum-left", [-l/2,-d,0], LEFT),
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anchorpt("dedendum-right", [ l/2,-d,0], RIGHT),
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],
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path = [
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[-(teeth-1)/2 * pitch + -1/2 * pitch, a-base],
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[-(teeth-1)/2 * pitch + -1/2 * pitch, a-height],
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[-(teeth-1)/2 * pitch + -1/2 * pitch, -d],
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for (i = [0:1:teeth-1]) let(
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off = (i-(teeth-1)/2) * pitch
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@ -394,41 +397,41 @@ function rack2d(
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[off + 1/4 * pitch - backlash + xd, -d],
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],
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[ (teeth-1)/2 * pitch + 1/2 * pitch, -d],
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[ (teeth-1)/2 * pitch + 1/2 * pitch, a-base],
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[ (teeth-1)/2 * pitch + 1/2 * pitch, a-height],
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]
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) reorient(anchor,spin, two_d=true, size=[l,2*abs(a-base)], anchors=anchors, p=path);
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) reorient(anchor,spin, two_d=true, size=[l,2*abs(a-height)], anchors=anchors, p=path);
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module rack2d(
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pitch = 5,
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teeth = 20,
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base = 10,
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pitch = 5,
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teeth = 20,
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height = 10,
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pressure_angle = 28,
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backlash = 0.0,
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backlash = 0.0,
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clearance = undef,
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anchor = CENTER,
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spin = 0
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anchor = CENTER,
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spin = 0
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) {
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a = adendum(pitch);
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d = dedendum(pitch, clearance);
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l = teeth * pitch;
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anchors = [
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anchorpt("adendum", [0,a,0], BACK),
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anchorpt("adendum-left", [-l/2,a,0], LEFT),
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anchorpt("adendum-right", [l/2,a,0], RIGHT),
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anchorpt("dedendum", [0,-d,0], BACK),
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anchorpt("dedendum-left", [-l/2,-d,0], LEFT),
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anchorpt("dedendum-right", [l/2,-d,0], RIGHT),
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anchorpt("adendum", [ 0, a,0], BACK),
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anchorpt("adendum-left", [-l/2, a,0], LEFT),
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anchorpt("adendum-right", [ l/2, a,0], RIGHT),
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anchorpt("dedendum", [ 0,-d,0], BACK),
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anchorpt("dedendum-left", [-l/2,-d,0], LEFT),
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anchorpt("dedendum-right", [ l/2,-d,0], RIGHT),
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];
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path = rack2d(
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pitch = pitch,
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teeth = teeth,
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base = base,
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pitch = pitch,
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teeth = teeth,
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height = height,
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pressure_angle = pressure_angle,
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backlash = backlash,
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clearance = clearance
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);
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attachable(anchor,spin, two_d=true, size=[l, 2*abs(a-base)], anchors=anchors) {
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attachable(anchor,spin, two_d=true, size=[l, 2*abs(a-height)], anchors=anchors) {
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polygon(path);
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children();
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}
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@ -503,22 +506,22 @@ module rack2d(
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// translate([ d13, 0, 0]) rotate([0,0,-($t-n3/4+n1/4+1/2)*360/n3]) color([0.75,0.75,1.00]) gear(pitch,n3,thickness,hole);
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// translate([ d13, 0, 0]) rotate([0,0,-($t-n3/4+n1/4+1/2)*360/n3]) color([0.75,0.75,1.00]) gear(pitch,n3,thickness,hole);
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// translate([-d14, 0, 0]) rotate([0,0,-($t-n4/4-n1/4+1/2-floor(n4/4)-3)*360/n4]) color([1.00,0.75,0.50]) gear(pitch,n4,thickness,hole,hide=n4-3);
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// translate([(-floor(n5/2)-floor(n1/2)+$t+n1/2)*9, -d1+0.0, 0]) color([0.75,0.75,0.75]) rack(pitch=pitch,teeth=n5,thickness=thickness,base=rack_base,anchor=CENTER,orient=BACK);
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// translate([(-floor(n5/2)-floor(n1/2)+$t+n1/2)*9, -d1+0.0, 0]) color([0.75,0.75,0.75]) rack(pitch=pitch,teeth=n5,thickness=thickness,height=rack_base,anchor=CENTER,orient=BACK);
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function gear(
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pitch = 3,
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teeth = 11,
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pitch = 3,
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teeth = 11,
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thickness = 6,
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shaft_diam = 3,
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hide = 0,
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hide = 0,
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pressure_angle = 28,
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clearance = undef,
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backlash = 0.0,
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helical = 0,
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slices = 2,
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interior = false,
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anchor = CENTER,
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spin = 0,
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orient = UP
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backlash = 0.0,
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helical = 0,
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slices = 2,
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interior = false,
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anchor = CENTER,
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spin = 0,
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orient = UP
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) =
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let(
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p = pitch_radius(pitch, teeth),
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@ -527,13 +530,13 @@ function gear(
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twist = atan2(thickness*tan(helical),p),
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rgn = [
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gear2d(
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pitch = pitch,
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teeth = teeth,
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pitch = pitch,
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teeth = teeth,
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pressure_angle = pressure_angle,
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hide = hide,
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hide = hide,
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clearance = clearance,
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backlash = backlash,
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interior = interior
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backlash = backlash,
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interior = interior
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),
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if (shaft_diam > 0) circle(d=shaft_diam, $fn=max(12,segs(shaft_diam/2)))
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],
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@ -542,20 +545,20 @@ function gear(
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module gear(
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pitch = 3,
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teeth = 11,
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pitch = 3,
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teeth = 11,
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thickness = 6,
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shaft_diam = 3,
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hide = 0,
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hide = 0,
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pressure_angle = 28,
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clearance = undef,
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backlash = 0.0,
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helical = 0,
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slices = 2,
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interior = false,
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anchor = CENTER,
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spin = 0,
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orient = UP
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backlash = 0.0,
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helical = 0,
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slices = 2,
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interior = false,
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anchor = CENTER,
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spin = 0,
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orient = UP
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) {
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p = pitch_radius(pitch, teeth);
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c = outer_radius(pitch, teeth, clearance, interior);
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@ -565,13 +568,13 @@ module gear(
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difference() {
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linear_extrude(height=thickness, center=true, convexity=10, twist=twist) {
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gear2d(
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pitch = pitch,
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teeth = teeth,
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pitch = pitch,
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teeth = teeth,
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pressure_angle = pressure_angle,
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hide = hide,
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hide = hide,
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clearance = clearance,
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backlash = backlash,
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interior = interior
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backlash = backlash,
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interior = interior
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);
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}
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if (shaft_diam > 0) {
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@ -638,23 +641,23 @@ module gear(
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// bevel_gear(pitch=5, teeth=t1, mate_teeth=t2, slices=12, anchor="apex", orient=FWD);
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// bevel_gear(pitch=5, teeth=t2, mate_teeth=t1, left_handed=true, slices=12, anchor="apex", spin=180/t2);
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function bevel_gear(
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pitch = 3,
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teeth = 11,
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face_width = 10,
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pitch = 3,
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teeth = 11,
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face_width = 10,
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pitch_angle = 45,
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mate_teeth = undef,
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hide = 0,
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mate_teeth = undef,
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hide = 0,
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pressure_angle = 20,
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clearance = undef,
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backlash = 0.0,
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cutter_radius = 30,
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clearance = undef,
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backlash = 0.0,
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cutter_radius = 30,
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spiral_angle = 35,
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left_handed = false,
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slices = 1,
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interior = false,
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anchor = "pitchbase",
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spin = 0,
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orient = UP
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slices = 1,
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interior = false,
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anchor = "pitchbase",
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spin = 0,
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orient = UP
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) =
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let(
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slices = cutter_radius==0? 1 : slices,
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@ -676,14 +679,14 @@ function bevel_gear(
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apts = [for (u=slice_us) radcp + polar_to_xy(cutter_radius, lerp(sang,eang,u))],
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polars = [for (p=apts) [vang(p)-90, norm(p)]],
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profile = gear_tooth_profile(
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pitch = pitch,
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teeth = teeth,
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pitch = pitch,
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teeth = teeth,
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pressure_angle = pressure_angle,
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clearance = clearance,
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backlash = backlash,
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interior = interior,
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valleys = false,
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center = true
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backlash = backlash,
|
||||
interior = interior,
|
||||
valleys = false,
|
||||
center = true
|
||||
),
|
||||
verts1 = [
|
||||
for (polar=polars) [
|
||||
|
|
@ -738,24 +741,24 @@ function bevel_gear(
|
|||
|
||||
|
||||
module bevel_gear(
|
||||
pitch = 3,
|
||||
teeth = 11,
|
||||
face_width = 10,
|
||||
pitch = 3,
|
||||
teeth = 11,
|
||||
face_width = 10,
|
||||
pitch_angle = 45,
|
||||
mate_teeth = undef,
|
||||
shaft_diam = 3,
|
||||
hide = 0,
|
||||
mate_teeth,
|
||||
shaft_diam = 3,
|
||||
hide = 0,
|
||||
pressure_angle = 20,
|
||||
clearance = undef,
|
||||
backlash = 0.0,
|
||||
cutter_radius = 30,
|
||||
clearance = undef,
|
||||
backlash = 0.0,
|
||||
cutter_radius = 30,
|
||||
spiral_angle = 35,
|
||||
left_handed = false,
|
||||
slices = 1,
|
||||
interior = false,
|
||||
anchor = "pitchbase",
|
||||
spin = 0,
|
||||
orient = UP
|
||||
slices = 1,
|
||||
interior = false,
|
||||
anchor = "pitchbase",
|
||||
spin = 0,
|
||||
orient = UP
|
||||
) {
|
||||
slices = cutter_radius==0? 1 : slices;
|
||||
pitch_angle = is_undef(mate_teeth)? pitch_angle : atan(teeth/mate_teeth);
|
||||
|
|
@ -765,19 +768,19 @@ module bevel_gear(
|
|||
pitchoff = (pr-rr) * cos(pitch_angle);
|
||||
thickness = face_width * cos(pitch_angle);
|
||||
vnf = bevel_gear(
|
||||
pitch = pitch,
|
||||
teeth = teeth,
|
||||
face_width = face_width,
|
||||
pitch = pitch,
|
||||
teeth = teeth,
|
||||
face_width = face_width,
|
||||
pitch_angle = pitch_angle,
|
||||
hide = hide,
|
||||
hide = hide,
|
||||
pressure_angle = pressure_angle,
|
||||
clearance = clearance,
|
||||
backlash = backlash,
|
||||
cutter_radius = cutter_radius,
|
||||
clearance = clearance,
|
||||
backlash = backlash,
|
||||
cutter_radius = cutter_radius,
|
||||
spiral_angle = spiral_angle,
|
||||
left_handed = left_handed,
|
||||
slices = slices,
|
||||
interior = interior,
|
||||
slices = slices,
|
||||
interior = interior,
|
||||
anchor=CENTER
|
||||
);
|
||||
anchors = [
|
||||
|
|
@ -799,9 +802,9 @@ module bevel_gear(
|
|||
|
||||
// Function&Module: rack()
|
||||
// Usage: As a Module
|
||||
// rack(pitch, teeth, thickness, base, <pressure_angle>, <backlash>);
|
||||
// rack(pitch, teeth, thickness, height, <pressure_angle>, <backlash>);
|
||||
// Usage: As a Function
|
||||
// vnf = rack(pitch, teeth, thickness, base, <pressure_angle>, <backlash>);
|
||||
// vnf = rack(pitch, teeth, thickness, height, <pressure_angle>, <backlash>);
|
||||
// Description:
|
||||
// This is used to create a 3D rack, which is a linear bar with teeth that a gear can roll along.
|
||||
// A rack can mesh with any gear that has the same `pitch` and `pressure_angle`.
|
||||
|
|
@ -811,7 +814,7 @@ module bevel_gear(
|
|||
// pitch = The circular pitch, or distance between teeth around the pitch circle, in mm.
|
||||
// teeth = Total number of teeth along the rack
|
||||
// thickness = Thickness of rack in mm (affects each tooth)
|
||||
// base = Height of rack in mm, from tooth top to back of rack.
|
||||
// height = Height of rack in mm, from tooth top to back of rack.
|
||||
// pressure_angle = Controls how straight or bulged the tooth sides are. In degrees.
|
||||
// backlash = Gap between two meshing teeth, in the direction along the circumference of the pitch circle
|
||||
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#anchor). Default: `CENTER`
|
||||
|
|
@ -829,18 +832,18 @@ module bevel_gear(
|
|||
// "dedendum-back" = At the base of the teeth, at the back of the rack.
|
||||
// "dedendum-front" = At the base of the teeth, at the front of the rack.
|
||||
// Example:
|
||||
// rack(pitch=5, teeth=10, thickness=5, base=5, pressure_angle=20);
|
||||
// rack(pitch=5, teeth=10, thickness=5, height=5, pressure_angle=20);
|
||||
module rack(
|
||||
pitch = 5,
|
||||
teeth = 20,
|
||||
pitch = 5,
|
||||
teeth = 20,
|
||||
thickness = 5,
|
||||
base = 10,
|
||||
height = 10,
|
||||
pressure_angle = 28,
|
||||
backlash = 0.0,
|
||||
backlash = 0.0,
|
||||
clearance = undef,
|
||||
anchor = CENTER,
|
||||
spin = 0,
|
||||
orient = UP
|
||||
anchor = CENTER,
|
||||
spin = 0,
|
||||
orient = UP
|
||||
) {
|
||||
a = adendum(pitch);
|
||||
d = dedendum(pitch, clearance);
|
||||
|
|
@ -857,15 +860,15 @@ module rack(
|
|||
anchorpt("dedendum-front", [0,-thickness/2,-d], DOWN),
|
||||
anchorpt("dedendum-back", [0, thickness/2,-d], UP),
|
||||
];
|
||||
attachable(anchor,spin,orient, size=[l, thickness, 2*abs(a-base)], anchors=anchors) {
|
||||
attachable(anchor,spin,orient, size=[l, thickness, 2*abs(a-height)], anchors=anchors) {
|
||||
xrot(90) {
|
||||
linear_extrude(height=thickness, center=true, convexity=teeth*2) {
|
||||
rack2d(
|
||||
pitch = pitch,
|
||||
teeth = teeth,
|
||||
base = base,
|
||||
pitch = pitch,
|
||||
teeth = teeth,
|
||||
height = height,
|
||||
pressure_angle = pressure_angle,
|
||||
backlash = backlash,
|
||||
backlash = backlash,
|
||||
clearance = clearance
|
||||
);
|
||||
}
|
||||
|
|
@ -876,16 +879,16 @@ module rack(
|
|||
|
||||
|
||||
function rack(
|
||||
pitch = 5,
|
||||
teeth = 20,
|
||||
pitch = 5,
|
||||
teeth = 20,
|
||||
thickness = 5,
|
||||
base = 10,
|
||||
height = 10,
|
||||
pressure_angle = 28,
|
||||
backlash = 0.0,
|
||||
backlash = 0.0,
|
||||
clearance = undef,
|
||||
anchor = CENTER,
|
||||
spin = 0,
|
||||
orient = UP
|
||||
anchor = CENTER,
|
||||
spin = 0,
|
||||
orient = UP
|
||||
) =
|
||||
let(
|
||||
a = adendum(pitch),
|
||||
|
|
@ -904,15 +907,15 @@ function rack(
|
|||
anchorpt("dedendum-back", [0, thickness/2,-d], UP),
|
||||
],
|
||||
path = rack2d(
|
||||
pitch = pitch,
|
||||
teeth = teeth,
|
||||
base = base,
|
||||
pitch = pitch,
|
||||
teeth = teeth,
|
||||
height = height,
|
||||
pressure_angle = pressure_angle,
|
||||
backlash = backlash,
|
||||
backlash = backlash,
|
||||
clearance = clearance
|
||||
),
|
||||
vnf = linear_sweep(path, height=thickness, anchor="origin", orient=FWD)
|
||||
) reorient(anchor,spin,orient, size=[l, thickness, 2*abs(a-base)], anchors=anchors, p=vnf);
|
||||
) reorient(anchor,spin,orient, size=[l, thickness, 2*abs(a-height)], anchors=anchors, p=vnf);
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -294,11 +294,11 @@ def mkdn_esc(txt):
|
|||
while txt:
|
||||
m = quotpat.match(txt)
|
||||
if m:
|
||||
out += m.group(1).replace(r'_', r'\_')
|
||||
out += m.group(1).replace(r'_', r'\_').replace(r'&',r'&').replace(r'<', r'<').replace(r'>',r'>')
|
||||
out += m.group(2)
|
||||
txt = m.group(3)
|
||||
else:
|
||||
out += txt.replace(r'_', r'\_')
|
||||
out += txt.replace(r'_', r'\_').replace(r'&',r'&').replace(r'<', r'<').replace(r'>',r'>')
|
||||
txt = ""
|
||||
return out
|
||||
|
||||
|
|
|
|||
|
|
@ -8,7 +8,7 @@
|
|||
//////////////////////////////////////////////////////////////////////
|
||||
|
||||
|
||||
BOSL_VERSION = [2,0,453];
|
||||
BOSL_VERSION = [2,0,454];
|
||||
|
||||
|
||||
// Section: BOSL Library Version Functions
|
||||
|
|
|
|||
Loading…
Reference in a new issue