mirror of
https://github.com/BelfrySCAD/BOSL2.git
synced 2024-12-29 00:09:41 +00:00
change interior to internal, add default tags for internal
This commit is contained in:
Adrian Mariano
parent
34489a7b44
commit
465da2e5c3
2 changed files with 103 additions and 106 deletions
|
|
@ -587,6 +587,7 @@ module orient(anchor, spin) {
|
|||
// `$attach_anchor` for each anchor given, this is set to the `[ANCHOR, POSITION, ORIENT, SPIN]` information for that anchor.
|
||||
// `$attach_to` is set to `undef`.
|
||||
// `$attach_norot` is set to `true`.
|
||||
// `$anchor_override` is set to the anchor required for proper positioning of the child.
|
||||
// if inside is true then set default tag to "remove"
|
||||
// Example: Child would require anchor of RIGHT+FRONT+BOT if placed with {{position()}}.
|
||||
// cuboid([50,40,15])
|
||||
|
|
@ -656,12 +657,10 @@ module align(anchor,orient=UP,spin,inside=false)
|
|||
translate(pos_anch[1]) {
|
||||
if (two_d)
|
||||
rot(spin)rot(from=fromvec, to=orient_anch[2])
|
||||
if (inside) default_tag("remove") children();
|
||||
else children();
|
||||
default_tag("remove",inside) children();
|
||||
else
|
||||
rot(spin, from=fromvec, to=orient_anch[2])
|
||||
if (inside) default_tag("remove") children();
|
||||
else children();
|
||||
default_tag("remove",inside) children();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -841,10 +840,12 @@ module force_tag(tag)
|
|||
// set so you can have a module set a default tag of "remove" but that tag can be overridden by a {{tag()}}
|
||||
// in force from a parent. If you use {{tag()}} it will override any previously
|
||||
// specified tag from a parent, which can be very confusing to a user trying to change the tag on a module.
|
||||
// The `do_tag` parameter allows you to apply a default tag conditionally without having to repeat the children.
|
||||
// .
|
||||
// For a step-by-step explanation of attachments, see the [Attachments Tutorial](Tutorial-Attachments).
|
||||
// Arguments:
|
||||
// tag = tag string, which must not contain any spaces.
|
||||
// do_tag = if false do not set the tag.
|
||||
// Side Effects:
|
||||
// Sets `$tag` to the tag you specify, possibly with a scope prefix.
|
||||
// Example(3D): The module thing() is defined with {{tag()}} and the user applied tag of "keep_it" is ignored, leaving the user puzzled.
|
||||
|
|
@ -861,7 +862,7 @@ module force_tag(tag)
|
|||
// position(TOP) thing();
|
||||
// position(RIGHT) tag("keep_it") thing();
|
||||
// }
|
||||
module default_tag(tag)
|
||||
module default_tag(tag,skip=false)
|
||||
{
|
||||
if ($tag=="") tag(tag) children();
|
||||
else children();
|
||||
|
|
|
|||
198
gears.scad
198
gears.scad
|
|
@ -31,7 +31,7 @@
|
|||
// Topics: Gears, Parts
|
||||
// See Also: rack(), spur_gear(), spur_gear2d(), bevel_gear()
|
||||
// Usage: As a Module
|
||||
// spur_gear(pitch, teeth, thickness, [shaft_diam], [hide=], [pressure_angle=], [clearance=], [backlash=], [helical=], [slices=], [interior=]) [ATTACHMENTS];
|
||||
// spur_gear(pitch, teeth, thickness, [shaft_diam], [hide=], [pressure_angle=], [clearance=], [backlash=], [helical=], [slices=], [internal=]) [ATTACHMENTS];
|
||||
// spur_gear(mod=, teeth=, thickness=, [shaft_diam=], ...) [ATTACHMENTS];
|
||||
// Usage: As a Function
|
||||
// vnf = spur_gear(pitch, teeth, thickness, [shaft_diam=], ...);
|
||||
|
|
@ -77,11 +77,13 @@
|
|||
// helical = Teeth are slanted around the spur gear at this angle away from the gear axis of rotation.
|
||||
// slices = Number of vertical layers to divide gear into. Useful for refining gears with `helical`.
|
||||
// scale = Scale of top of gear compared to bottom. Useful for making crown gears.
|
||||
// interior = If true, create a mask for difference()ing from something else.
|
||||
// internal = If true, create a mask for difference()ing from something else.
|
||||
// mod = The metric module/modulus of the gear.
|
||||
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
|
||||
// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#subsection-spin). Default: `0`
|
||||
// orient = Vector to rotate top towards, after spin. See [orient](attachments.scad#subsection-orient). Default: `UP`
|
||||
// Side Effects:
|
||||
// If internal is true then the default tag is "remove"
|
||||
// Example: Spur Gear
|
||||
// spur_gear(pitch=5, teeth=20, thickness=8, shaft_diam=5);
|
||||
// Example: Metric Gear
|
||||
|
|
@ -140,13 +142,13 @@
|
|||
// pitch=5; thick=10; pa=20;
|
||||
// prad = (pitch_radius(pitch,rteeth) +
|
||||
// pitch_radius(pitch,cteeth)) / 2;
|
||||
// rrad = outer_radius(pitch,rteeth,interior=true) + 5;
|
||||
// rrad = outer_radius(pitch,rteeth,internal=true) + 5;
|
||||
// diff()
|
||||
// cyl(r=rrad,l=thick)
|
||||
// tag("remove")
|
||||
// spur_gear(
|
||||
// pitch=pitch, teeth=rteeth, thickness=thick+1,
|
||||
// pressure_angle=pa, interior=true);
|
||||
// pressure_angle=pa, internal=true);
|
||||
// for (a=[0:3]) {
|
||||
// zrot($t*90+a*90) back(prad) {
|
||||
// color("green")
|
||||
|
|
@ -176,17 +178,20 @@ function spur_gear(
|
|||
backlash = 0.0,
|
||||
helical = 0,
|
||||
slices = 2,
|
||||
interior = false,
|
||||
interior,
|
||||
internal,
|
||||
mod,
|
||||
anchor = CENTER,
|
||||
spin = 0,
|
||||
orient = UP
|
||||
) =
|
||||
assert(is_undef(interior), "The interior paramter to spur_gear has been replaced by internal and will be removed.")
|
||||
let(
|
||||
internal = first_defined([internal,interior,false]),
|
||||
pitch = is_undef(mod) ? pitch : pitch_value(mod),
|
||||
p = pitch_radius(pitch, teeth),
|
||||
c = outer_radius(pitch, teeth, clearance, interior),
|
||||
r = _root_radius(pitch, teeth, clearance, interior),
|
||||
c = outer_radius(pitch, teeth, clearance, internal),
|
||||
r = _root_radius(pitch, teeth, clearance, internal),
|
||||
twist = atan2(thickness*tan(helical),p),
|
||||
rgn = [
|
||||
spur_gear2d(
|
||||
|
|
@ -196,7 +201,7 @@ function spur_gear(
|
|||
hide = hide,
|
||||
clearance = clearance,
|
||||
backlash = backlash,
|
||||
interior = interior
|
||||
internal = internal
|
||||
),
|
||||
if (shaft_diam > 0) circle(d=shaft_diam, $fn=max(12,segs(shaft_diam/2)))
|
||||
],
|
||||
|
|
@ -215,36 +220,40 @@ module spur_gear(
|
|||
backlash = 0.0,
|
||||
helical = 0,
|
||||
slices = 2,
|
||||
interior = false,
|
||||
internal,
|
||||
interior,
|
||||
mod,
|
||||
anchor = CENTER,
|
||||
spin = 0,
|
||||
orient = UP
|
||||
) {
|
||||
assert(is_undef(interior), "The interior paramter to spur_gear has been replaced by internal and will be removed.");
|
||||
internal = first_defined([internal,interior,false]);
|
||||
pitch = is_undef(mod) ? pitch : pitch_value(mod);
|
||||
p = pitch_radius(pitch, teeth);
|
||||
c = outer_radius(pitch, teeth, clearance, interior);
|
||||
r = _root_radius(pitch, teeth, clearance, interior);
|
||||
c = outer_radius(pitch, teeth, clearance, internal);
|
||||
r = _root_radius(pitch, teeth, clearance, internal);
|
||||
twist = atan2(thickness*tan(helical),p);
|
||||
attachable(anchor,spin,orient, r=p, l=thickness) {
|
||||
difference() {
|
||||
linear_extrude(height=thickness, center=true, convexity=teeth/2, twist=twist) {
|
||||
spur_gear2d(
|
||||
pitch = pitch,
|
||||
teeth = teeth,
|
||||
pressure_angle = pressure_angle,
|
||||
hide = hide,
|
||||
clearance = clearance,
|
||||
backlash = backlash,
|
||||
interior = interior
|
||||
);
|
||||
}
|
||||
if (shaft_diam > 0) {
|
||||
cylinder(h=2*thickness+1, r=shaft_diam/2, center=true, $fn=max(12,segs(shaft_diam/2)));
|
||||
default_tag("remove", internal)
|
||||
attachable(anchor,spin,orient, r=p, l=thickness) {
|
||||
difference() {
|
||||
linear_extrude(height=thickness, center=true, convexity=teeth/2, twist=twist) {
|
||||
spur_gear2d(
|
||||
pitch = pitch,
|
||||
teeth = teeth,
|
||||
pressure_angle = pressure_angle,
|
||||
hide = hide,
|
||||
clearance = clearance,
|
||||
backlash = backlash,
|
||||
internal = internal
|
||||
);
|
||||
}
|
||||
if (shaft_diam > 0) {
|
||||
cylinder(h=2*thickness+1, r=shaft_diam/2, center=true, $fn=max(12,segs(shaft_diam/2)));
|
||||
}
|
||||
}
|
||||
children();
|
||||
}
|
||||
children();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -254,11 +263,11 @@ module spur_gear(
|
|||
// Topics: Gears, Parts
|
||||
// See Also: rack(), spur_gear(), spur_gear2d(), bevel_gear()
|
||||
// Usage: As Module
|
||||
// spur_gear2d(pitch, teeth, [hide=], [pressure_angle=], [clearance=], [backlash=], [interior=]) [ATTACHMENTS];
|
||||
// spur_gear2d(mod=, teeth=, [hide=], [pressure_angle=], [clearance=], [backlash=], [interior=]) [ATTACHMENTS];
|
||||
// spur_gear2d(pitch, teeth, [hide=], [pressure_angle=], [clearance=], [backlash=], [internal=]) [ATTACHMENTS];
|
||||
// spur_gear2d(mod=, teeth=, [hide=], [pressure_angle=], [clearance=], [backlash=], [internal=]) [ATTACHMENTS];
|
||||
// Usage: As Function
|
||||
// poly = spur_gear2d(pitch, teeth, [hide=], [pressure_angle=], [clearance=], [backlash=], [interior=]);
|
||||
// poly = spur_gear2d(mod=, teeth=, [hide=], [pressure_angle=], [clearance=], [backlash=], [interior=]);
|
||||
// poly = spur_gear2d(pitch, teeth, [hide=], [pressure_angle=], [clearance=], [backlash=], [internal=]);
|
||||
// poly = spur_gear2d(mod=, teeth=, [hide=], [pressure_angle=], [clearance=], [backlash=], [internal=]);
|
||||
// Description:
|
||||
// When called as a module, creates a 2D involute spur gear. When called as a function, returns a
|
||||
// 2D path for the perimeter of a 2D involute spur gear. Normally, you should just specify the
|
||||
|
|
@ -272,7 +281,7 @@ module spur_gear(
|
|||
// pressure_angle = Controls how straight or bulged the tooth sides are. In degrees.
|
||||
// clearance = Gap between top of a tooth on one gear and bottom of valley on a meshing gear (in millimeters)
|
||||
// backlash = Gap between two meshing teeth, in the direction along the circumference of the pitch circle
|
||||
// interior = If true, create a mask for difference()ing from something else.
|
||||
// internal = If true, create a mask for difference()ing from something else.
|
||||
// mod = The metric module/modulus of the gear.
|
||||
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
|
||||
// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#subsection-spin). Default: `0`
|
||||
|
|
@ -294,11 +303,15 @@ function spur_gear2d(
|
|||
pressure_angle = 28,
|
||||
clearance = undef,
|
||||
backlash = 0.0,
|
||||
interior = false,
|
||||
internal,
|
||||
interior,
|
||||
mod,
|
||||
anchor = CENTER,
|
||||
spin = 0
|
||||
) = let(
|
||||
) =
|
||||
assert(is_undef(interior), "The interior paramter to spur_gear2d has been replaced by internal and will be removed.")
|
||||
let(
|
||||
internal = first_defined([internal,internal,false]),
|
||||
pitch = is_undef(mod) ? pitch : pitch_value(mod),
|
||||
pr = pitch_radius(pitch=pitch, teeth=teeth),
|
||||
tooth_profile = _gear_tooth_profile(
|
||||
|
|
@ -307,7 +320,7 @@ function spur_gear2d(
|
|||
pressure_angle = pressure_angle,
|
||||
clearance = clearance,
|
||||
backlash = backlash,
|
||||
interior = interior,
|
||||
internal = internal,
|
||||
valleys = false
|
||||
),
|
||||
pts = concat(
|
||||
|
|
@ -326,11 +339,14 @@ module spur_gear2d(
|
|||
pressure_angle = 28,
|
||||
clearance = undef,
|
||||
backlash = 0.0,
|
||||
interior = false,
|
||||
internal,
|
||||
interior,
|
||||
mod,
|
||||
anchor = CENTER,
|
||||
spin = 0
|
||||
) {
|
||||
assert(is_undef(interior), "The interior paramter to spur_gear2d has been replaced by internal and will be removed.");
|
||||
internal = first_defined([internal,interior,false]);
|
||||
pitch = is_undef(mod) ? pitch : pitch_value(mod);
|
||||
path = spur_gear2d(
|
||||
pitch = pitch,
|
||||
|
|
@ -339,7 +355,7 @@ module spur_gear2d(
|
|||
pressure_angle = pressure_angle,
|
||||
clearance = clearance,
|
||||
backlash = backlash,
|
||||
interior = interior
|
||||
internal = internal
|
||||
);
|
||||
pr = pitch_radius(pitch=pitch, teeth=teeth);
|
||||
attachable(anchor,spin, two_d=true, r=pr) {
|
||||
|
|
@ -630,11 +646,11 @@ module rack2d(
|
|||
// Topics: Gears, Parts
|
||||
// See Also: rack(), rack2d(), spur_gear(), spur_gear2d(), bevel_pitch_angle(), bevel_gear()
|
||||
// Usage: As a Module
|
||||
// bevel_gear(pitch, teeth, face_width, [pitch_angle=]|[mate_teeth=], [shaft_diam=], [hide=], [pressure_angle=], [clearance=], [backlash=], [cutter_radius=], [spiral_angle=], [left_handed=], [slices=], [interior=]);
|
||||
// bevel_gear(mod=, teeth=, face_width=, [pitch_angle=]|[mate_teeth=], [shaft_diam=], [hide=], [pressure_angle=], [clearance=], [backlash=], [cutter_radius=], [spiral_angle=], [left_handed=], [slices=], [interior=]);
|
||||
// bevel_gear(pitch, teeth, face_width, [pitch_angle=]|[mate_teeth=], [shaft_diam=], [hide=], [pressure_angle=], [clearance=], [backlash=], [cutter_radius=], [spiral_angle=], [left_handed=], [slices=], [internal=]);
|
||||
// bevel_gear(mod=, teeth=, face_width=, [pitch_angle=]|[mate_teeth=], [shaft_diam=], [hide=], [pressure_angle=], [clearance=], [backlash=], [cutter_radius=], [spiral_angle=], [left_handed=], [slices=], [internal=]);
|
||||
// Usage: As a Function
|
||||
// vnf = bevel_gear(pitch, teeth, face_width, [pitch_angle=]|[mate_teeth=], [hide=], [pressure_angle=], [clearance=], [backlash=], [cutter_radius=], [spiral_angle=], [left_handed=], [slices=], [interior=]);
|
||||
// vnf = bevel_gear(mod=, teeth=, face_width=, [pitch_angle=]|[mate_teeth=], [hide=], [pressure_angle=], [clearance=], [backlash=], [cutter_radius=], [spiral_angle=], [left_handed=], [slices=], [interior=]);
|
||||
// vnf = bevel_gear(pitch, teeth, face_width, [pitch_angle=]|[mate_teeth=], [hide=], [pressure_angle=], [clearance=], [backlash=], [cutter_radius=], [spiral_angle=], [left_handed=], [slices=], [internal=]);
|
||||
// vnf = bevel_gear(mod=, teeth=, face_width=, [pitch_angle=]|[mate_teeth=], [hide=], [pressure_angle=], [clearance=], [backlash=], [cutter_radius=], [spiral_angle=], [left_handed=], [slices=], [internal=]);
|
||||
// Description:
|
||||
// Creates a (potentially spiral) bevel gear. The module `bevel_gear()` gives a bevel gear, with
|
||||
// reasonable defaults for all the parameters. Normally, you should just choose the first 4
|
||||
|
|
@ -666,9 +682,9 @@ module rack2d(
|
|||
// pitch = The circular pitch, or distance between teeth around the pitch circle, in mm. Default: 5
|
||||
// teeth = Total number of teeth around the entire perimeter. Default: 20
|
||||
// face_width = Width of the toothed surface in mm, from inside to outside. Default: 10
|
||||
// ---
|
||||
// pitch_angle = Angle of beveled gear face. Default: 45
|
||||
// mate_teeth = The number of teeth in the gear that this gear will mate with. Overrides `pitch_angle` if given.
|
||||
// ---
|
||||
// shaft_diam = Diameter of the hole in the center, in mm. Module use only. Default: 0 (no shaft hole)
|
||||
// hide = Number of teeth to delete to make this only a fraction of a circle. Default: 0
|
||||
// pressure_angle = Controls how straight or bulged the tooth sides are. In degrees. Default: 28
|
||||
|
|
@ -678,7 +694,7 @@ module rack2d(
|
|||
// spiral_angle = The base angle for spiral teeth. Default: 0
|
||||
// left_handed = If true, the gear returned will have a left-handed spiral. Default: false
|
||||
// slices = Number of vertical layers to divide gear into. Useful for refining gears with `spiral`. Default: 1
|
||||
// interior = If true, create a mask for difference()ing from something else.
|
||||
// internal = If true, create a mask for difference()ing from something else.
|
||||
// mod = The metric module/modulus of the gear.
|
||||
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
|
||||
// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#subsection-spin). Default: `0`
|
||||
|
|
@ -687,6 +703,8 @@ module rack2d(
|
|||
// "apex" = At the pitch cone apex for the bevel gear.
|
||||
// "pitchbase" = At the natural height of the pitch radius of the beveled gear.
|
||||
// "flattop" = At the top of the flat top of the bevel gear.
|
||||
// Side Effects:
|
||||
// If internal is true then the default tag is "remove"
|
||||
// Example: Beveled Gear
|
||||
// bevel_gear(
|
||||
// pitch=5, teeth=36, face_width=10, shaft_diam=5,
|
||||
|
|
@ -732,18 +750,21 @@ function bevel_gear(
|
|||
spiral_angle = 35,
|
||||
left_handed = false,
|
||||
slices = 5,
|
||||
interior = false,
|
||||
internal,
|
||||
interior,
|
||||
mod,
|
||||
anchor = "pitchbase",
|
||||
spin = 0,
|
||||
orient = UP
|
||||
) =
|
||||
assert(is_undef(interior), "The interior paramter to bevel_gear has been replaced by internal and will be removed.")
|
||||
let(
|
||||
internal = first_defined([internal,interior,false]),
|
||||
pitch = is_undef(mod) ? pitch : pitch_value(mod),
|
||||
slices = cutter_radius==0? 1 : slices,
|
||||
pitch_angle = is_undef(mate_teeth)? pitch_angle : atan(teeth/mate_teeth),
|
||||
pr = pitch_radius(pitch, teeth),
|
||||
rr = _root_radius(pitch, teeth, clearance, interior),
|
||||
rr = _root_radius(pitch, teeth, clearance, internal),
|
||||
pitchoff = (pr-rr) * sin(pitch_angle),
|
||||
ocone_rad = opp_ang_to_hyp(pr, pitch_angle),
|
||||
icone_rad = ocone_rad - face_width,
|
||||
|
|
@ -761,7 +782,7 @@ function bevel_gear(
|
|||
pressure_angle = pressure_angle,
|
||||
clearance = clearance,
|
||||
backlash = backlash,
|
||||
interior = interior,
|
||||
internal = internal,
|
||||
valleys = false,
|
||||
center = true
|
||||
),
|
||||
|
|
@ -840,18 +861,21 @@ module bevel_gear(
|
|||
spiral_angle = 35,
|
||||
left_handed = false,
|
||||
slices = 5,
|
||||
interior = false,
|
||||
internal,
|
||||
interior,
|
||||
mod,
|
||||
anchor = "pitchbase",
|
||||
spin = 0,
|
||||
orient = UP
|
||||
) {
|
||||
assert(is_undef(interior), "The interior paramter to bevel_gear has been replaced by internal and will be removed.");
|
||||
internal = first_defined([internal,interior,false]);
|
||||
pitch = is_undef(mod) ? pitch : pitch_value(mod);
|
||||
slices = cutter_radius==0? 1 : slices;
|
||||
pitch_angle = is_undef(mate_teeth)? pitch_angle : atan(teeth/mate_teeth);
|
||||
pr = pitch_radius(pitch, teeth);
|
||||
ipr = pr - face_width*sin(pitch_angle);
|
||||
rr = _root_radius(pitch, teeth, clearance, interior);
|
||||
rr = _root_radius(pitch, teeth, clearance, internal);
|
||||
pitchoff = (pr-rr) * sin(pitch_angle);
|
||||
vnf = bevel_gear(
|
||||
pitch = pitch,
|
||||
|
|
@ -866,7 +890,7 @@ module bevel_gear(
|
|||
spiral_angle = spiral_angle,
|
||||
left_handed = left_handed,
|
||||
slices = slices,
|
||||
interior = interior,
|
||||
internal = internal,
|
||||
anchor=CENTER
|
||||
);
|
||||
axis_zs = [for (p=vnf[0]) if(norm(point2d(p)) < EPSILON) p.z];
|
||||
|
|
@ -876,15 +900,16 @@ module bevel_gear(
|
|||
named_anchor("flattop", [0,0,thickness/2]),
|
||||
named_anchor("apex", [0,0,adj_ang_to_opp(pr,90-pitch_angle)+pitchoff-thickness/2])
|
||||
];
|
||||
attachable(anchor,spin,orient, r1=pr, r2=ipr, h=thickness, anchors=anchors) {
|
||||
difference() {
|
||||
vnf_polyhedron(vnf, convexity=teeth/2);
|
||||
if (shaft_diam > 0) {
|
||||
cylinder(h=2*thickness+1, r=shaft_diam/2, center=true, $fn=max(12,segs(shaft_diam/2)));
|
||||
default_tag("remove",internal)
|
||||
attachable(anchor,spin,orient, r1=pr, r2=ipr, h=thickness, anchors=anchors) {
|
||||
difference() {
|
||||
vnf_polyhedron(vnf, convexity=teeth/2);
|
||||
if (shaft_diam > 0) {
|
||||
cylinder(h=2*thickness+1, r=shaft_diam/2, center=true, $fn=max(12,segs(shaft_diam/2)));
|
||||
}
|
||||
}
|
||||
children();
|
||||
}
|
||||
children();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1204,9 +1229,9 @@ module worm_gear(
|
|||
|
||||
/// Function&Module: _gear_tooth_profile()
|
||||
/// Usage: As Module
|
||||
/// _gear_tooth_profile(pitch|mod, teeth, [pressure_angle], [clearance], [backlash], [interior], [valleys]);
|
||||
/// _gear_tooth_profile(pitch|mod, teeth, [pressure_angle], [clearance], [backlash], [internal], [valleys]);
|
||||
/// Usage: As Function
|
||||
/// path = _gear_tooth_profile(pitch|mod, teeth, [pressure_angle], [clearance], [backlash], [interior], [valleys]);
|
||||
/// path = _gear_tooth_profile(pitch|mod, teeth, [pressure_angle], [clearance], [backlash], [internal], [valleys]);
|
||||
/// Topics: Gears
|
||||
/// See Also: spur_gear2d()
|
||||
/// Description:
|
||||
|
|
@ -1218,7 +1243,7 @@ module worm_gear(
|
|||
/// pressure_angle = Pressure Angle. Controls how straight or bulged the tooth sides are. In degrees.
|
||||
/// clearance = Gap between top of a tooth on one gear and bottom of valley on a meshing gear (in millimeters)
|
||||
/// backlash = Gap between two meshing teeth, in the direction along the circumference of the pitch circle
|
||||
/// interior = If true, create a mask for difference()ing from something else.
|
||||
/// internal = If true, create a mask for difference()ing from something else.
|
||||
/// valleys = If true, add the valley bottoms on either side of the tooth. Default: true
|
||||
/// center = If true, centers the pitch circle of the tooth profile at the origin. Default: false.
|
||||
/// mod = The metric module/modulus of the gear.
|
||||
|
|
@ -1241,15 +1266,15 @@ function _gear_tooth_profile(
|
|||
pressure_angle = 28,
|
||||
clearance = undef,
|
||||
backlash = 0.0,
|
||||
interior = false,
|
||||
internal = false,
|
||||
valleys = true,
|
||||
center = false,
|
||||
mod
|
||||
) = let(
|
||||
pitch = is_undef(mod) ? pitch : pitch_value(mod),
|
||||
p = pitch_radius(pitch, teeth),
|
||||
c = outer_radius(pitch, teeth, clearance, interior),
|
||||
r = _root_radius(pitch, teeth, clearance, interior),
|
||||
c = outer_radius(pitch, teeth, clearance, internal),
|
||||
r = _root_radius(pitch, teeth, clearance, internal),
|
||||
b = _base_radius(pitch, teeth, pressure_angle),
|
||||
t = pitch/2-backlash/2, //tooth thickness at pitch circle
|
||||
k = -_gear_iang(b, p) - t/2/p/PI*180, //angle to where involute meets base circle on each side of tooth
|
||||
|
|
@ -1273,35 +1298,6 @@ function _gear_tooth_profile(
|
|||
) pts2;
|
||||
|
||||
|
||||
module _gear_tooth_profile(
|
||||
pitch = 3,
|
||||
teeth = 11,
|
||||
pressure_angle = 28,
|
||||
backlash = 0.0,
|
||||
clearance = undef,
|
||||
interior = false,
|
||||
valleys = true,
|
||||
center = false,
|
||||
mod
|
||||
) {
|
||||
no_children($children);
|
||||
pitch = is_undef(mod) ? pitch : pitch_value(mod);
|
||||
r = _root_radius(pitch, teeth, clearance, interior);
|
||||
fwd(r)
|
||||
polygon(
|
||||
points=_gear_tooth_profile(
|
||||
pitch = pitch,
|
||||
teeth = teeth,
|
||||
pressure_angle = pressure_angle,
|
||||
backlash = backlash,
|
||||
clearance = clearance,
|
||||
interior = interior,
|
||||
valleys = valleys,
|
||||
center = center
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
||||
// Section: Computing Gear Dimensions
|
||||
// These functions let the user find the derived dimensions of the gear.
|
||||
|
|
@ -1464,15 +1460,15 @@ function pitch_radius(pitch=5, teeth=11, mod) =
|
|||
// Topics: Gears, Parts
|
||||
// See Also: spur_gear(), diametral_pitch(), circular_pitch(), pitch_value(), module_value(), pitch_radius(), outer_radius()
|
||||
// Usage:
|
||||
// or = outer_radius(pitch, teeth, [clearance=], [interior=]);
|
||||
// or = outer_radius(mod=, teeth=, [clearance=], [interior=]);
|
||||
// or = outer_radius(pitch, teeth, [clearance=], [internal=]);
|
||||
// or = outer_radius(mod=, teeth=, [clearance=], [internal=]);
|
||||
// Description:
|
||||
// Calculates the outer radius for the gear. The gear fits entirely within a cylinder of this radius.
|
||||
// Arguments:
|
||||
// pitch = The circular pitch, or distance between teeth around the pitch circle, in mm.
|
||||
// teeth = The number of teeth on the gear.
|
||||
// clearance = If given, sets the clearance between meshing teeth.
|
||||
// interior = If true, calculate for an interior gear.
|
||||
// internal = If true, calculate for an internal gear.
|
||||
// mod = The metric module/modulus of the gear.
|
||||
// Example:
|
||||
// or = outer_radius(pitch=5, teeth=20);
|
||||
|
|
@ -1482,15 +1478,15 @@ function pitch_radius(pitch=5, teeth=11, mod) =
|
|||
// #spur_gear2d(pitch=5, teeth=11);
|
||||
// color("black")
|
||||
// stroke(circle(r=pr),width=0.1,closed=true);
|
||||
function outer_radius(pitch=5, teeth=11, clearance, interior=false, mod) =
|
||||
function outer_radius(pitch=5, teeth=11, clearance, internal=false, mod) =
|
||||
let( pitch = is_undef(mod) ? pitch : pitch_value(mod) )
|
||||
pitch_radius(pitch, teeth) +
|
||||
(interior? _dedendum(pitch, clearance) : _adendum(pitch));
|
||||
(internal? _dedendum(pitch, clearance) : _adendum(pitch));
|
||||
|
||||
|
||||
/// Function: _root_radius()
|
||||
/// Usage:
|
||||
/// rr = _root_radius(pitch|mod, teeth, [clearance], [interior]);
|
||||
/// rr = _root_radius(pitch|mod, teeth, [clearance], [internal]);
|
||||
/// Topics: Gears
|
||||
/// Description:
|
||||
/// Calculates the root radius for the gear, at the base of the dedendum.
|
||||
|
|
@ -1498,7 +1494,7 @@ function outer_radius(pitch=5, teeth=11, clearance, interior=false, mod) =
|
|||
/// pitch = The circular pitch, or distance between teeth around the pitch circle, in mm.
|
||||
/// teeth = The number of teeth on the gear.
|
||||
/// clearance = If given, sets the clearance between meshing teeth.
|
||||
/// interior = If true, calculate for an interior gear.
|
||||
/// internal = If true, calculate for an internal gear.
|
||||
/// mod = The metric module/modulus of the gear.
|
||||
/// Example:
|
||||
/// rr = _root_radius(pitch=5, teeth=11);
|
||||
|
|
@ -1508,10 +1504,10 @@ function outer_radius(pitch=5, teeth=11, clearance, interior=false, mod) =
|
|||
/// #spur_gear2d(pitch=5, teeth=11);
|
||||
/// color("black")
|
||||
/// stroke(circle(r=pr),width=0.1,closed=true);
|
||||
function _root_radius(pitch=5, teeth=11, clearance, interior=false, mod) =
|
||||
function _root_radius(pitch=5, teeth=11, clearance, internal=false, mod) =
|
||||
let( pitch = is_undef(mod) ? pitch : pitch_value(mod) )
|
||||
pitch_radius(pitch, teeth) -
|
||||
(interior? _adendum(pitch) : _dedendum(pitch, clearance));
|
||||
(internal? _adendum(pitch) : _dedendum(pitch, clearance));
|
||||
|
||||
|
||||
/// Function: _base_radius()
|
||||
|
|
|
|||
Loading…
Reference in a new issue