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https://github.com/BelfrySCAD/BOSL2.git
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Added cylinder_mask()
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Revar Desmera
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commit
045e5bafe6
1 changed files with 125 additions and 34 deletions
159
masks.scad
159
masks.scad
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@ -90,18 +90,36 @@ module angle_pie_mask(
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}
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// Creates a shape that can be used to chamfer a 90 degree edge.
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// Difference it from the object to be chamfered. The center of
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// the mask object should align exactly with the edge to be chamfered.
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// l = Height of mask
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// chamfer = Size of chamfer
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// orient = Orientation of the cylinder. Use the ORIENT_ constants from constants.h. Default: vertical.
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// align = Alignment of the cylinder. Use the V_ constants from constants.h. Default: centered.
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// Example:
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// difference() {
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// cube(50);
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// #chamfer_mask(l=50.1, chamfer=10.0, orient=ORIENT_X, align=V_RIGHT);
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// }
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module chamfer_mask(l=1.0, chamfer=1.0, orient=ORIENT_Z, align=V_ZERO) {
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cyl(d=chamfer*2, l=l, align=align, orient=orient, $fn=4);
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}
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// Creates a shape that can be used to chamfer a 90 degree edge along the Z axis.
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// Difference it from the object to be chamfered. The center of the mask
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// object should align exactly with the edge to be chamfered.
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// l = Height of mask
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// chamfer = size of chamfer
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// align = Alignment of the cylinder. Use the V_ constants from constants.h. Default: centered.
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// Example:
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// difference() {
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// down(5) cube(10);
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// chamfer_mask_z(l=10.1, chamfer=2.0);
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// }
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module chamfer_mask_z(l=1.0, chamfer=1.0) {
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zrot(45) cube(size=[chamfer*sqrt(2.0), chamfer*sqrt(2.0), l], center=true);
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module chamfer_mask_z(l=1.0, chamfer=1.0, align=V_ZERO) {
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chamfer_mask(l=l, chamfer=chamfer, orient=ORIENT_Z, align=align);
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}
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@ -110,13 +128,14 @@ module chamfer_mask_z(l=1.0, chamfer=1.0) {
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// object should align exactly with the edge to be chamfered.
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// l = Height of mask
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// chamfer = size of chamfer
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// align = Alignment of the cylinder. Use the V_ constants from constants.h. Default: centered.
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// Example:
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// difference() {
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// fwd(5) cube(10);
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// chamfer_mask_y(l=10.1, chamfer=2.0);
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// }
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module chamfer_mask_y(l=1.0, chamfer=1.0) {
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xrot(90) chamfer_mask_z(l=l, chamfer=chamfer);
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module chamfer_mask_y(l=1.0, chamfer=1.0, align=V_ZERO) {
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chamfer_mask(l=l, chamfer=chamfer, orient=ORIENT_Y, align=align);
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}
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@ -125,13 +144,14 @@ module chamfer_mask_y(l=1.0, chamfer=1.0) {
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// object should align exactly with the edge to be chamfered.
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// l = Height of mask
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// chamfer = size of chamfer
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// align = Alignment of the cylinder. Use the V_ constants from constants.h. Default: centered.
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// Example:
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// difference() {
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// left(5) cube(10);
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// chamfer_mask_x(l=10.1, chamfer=2.0);
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// }
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module chamfer_mask_x(l=1.0, chamfer=1.0) {
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yrot(90) chamfer_mask_z(l=l, chamfer=chamfer);
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module chamfer_mask_x(l=1.0, chamfer=1.0, align=V_ZERO) {
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chamfer_mask(l=l, chamfer=chamfer, orient=ORIENT_X, align=align);
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}
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@ -194,28 +214,112 @@ module chamfer(chamfer=1, size=[1,1,1], edges=[[0,0,0,0], [1,1,0,0], [0,0,0,0]])
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}
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// Create a mask that can be used to bevel/chamfer the end of a cylinder.
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// Difference it from the cylinder to be chamferred. The center of the mask object
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// should align exactly with the center of the end of the cylinder to be chamferred.
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// Create a mask that can be used to bevel/chamfer the end of a cylindrical region.
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// Difference it from the end of the region to be chamferred. The center of the mask
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// object should align exactly with the center of the end of the cylindrical region
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// to be chamferred.
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// r = Radius of cylinder to chamfer.
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// d = Diameter of cylinder to chamfer. Use instead of r.
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// chamfer = Size of the edge chamferred, inset from edge. (Default: 0.25)
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// ang = Angle of chamfer in degrees from vertical. (Default: 45)
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// from_end = If true, chamfer size is measured from end of cylinder. If false, chamfer is measured outset from the radius of the cylinder. (Default: false)
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// orient = Orientation of the mask. Use the `ORIENT_` constants from `constants.h`. Default: ORIENT_Z.
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// Example:
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// $fa=2; $fs=2;
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// difference() {
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// cylinder(r=50, h=100, center=true);
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// up(50) chamfer_cylinder_mask(r=50, chamfer=10);
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// up(50) !chamfer_cylinder_mask(r=50, chamfer=10);
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// }
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module chamfer_cylinder_mask(r=1.0, d=undef, chamfer=0.25, ang=45, from_end=false)
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module chamfer_cylinder_mask(r=1.0, d=undef, chamfer=0.25, ang=45, from_end=false, orient=ORIENT_Z)
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{
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h = chamfer * (from_end? 1 : tan(90-ang));
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r = d==undef? r : d/2;
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r2 = r - chamfer * (from_end? tan(ang) : 1);
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difference() {
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cube([2*r+1, 2*r+1, 2*h], center=true);
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down(h+0.01) cylinder(r1=r, r2=r2, h=h+0.01, center=false);
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r = get_radius(r=r, d=d, dflt=1);
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rot(orient) cylinder_mask(l=chamfer*3, r=r, chamfer2=chamfer, chamfang2=ang, from_end=from_end, ends_only=true, align=V_DOWN);
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}
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// If passed children, bevels/chamfers and/or rounds/fillets the ends of the
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// cylindrical/conical region specified. If passed no children, creates
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// a mask to bevel/chamfer and/or fillet the ends of the cylindrical
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// region specified. Difference the mask from the region. The center
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// of the mask object should align exactly with the center of the
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// cylindrical region to be chamferred.
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// l = Length of the cylindrical/conical region.
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// r = Radius of cylindrical region to chamfer.
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// r1 = Radius of axis-negative end of the region to chamfer.
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// r2 = Radius of axis-positive end of the region to chamfer.
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// d = Diameter of cylindrical region to chamfer.
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// d1 = Diameter of axis-negative end of the region to chamfer.
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// d1 = Diameter of axis-positive end of the region to chamfer.
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// chamfer = Size of the chamfers/bevels. (Default: 0.25)
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// chamfer1 = Size of the chamfers/bevels for the axis-negative end of the region.
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// chamfer2 = Size of the chamfers/bevels for the axis-positive end of the region.
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// chamfang = Angle of chamfers/bevels in degrees from the length axis of the region. (Default: 45)
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// chamfang1 = Angle of chamfer/bevel of the axis-negative end of the region, in degrees from the length axis.
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// chamfang2 = Angle of chamfer/bevel of the axis-positive end of the region, in degrees from the length axis.
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// fillet = The radius of the fillets on the ends of the region. Default: none.
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// fillet1 = The radius of the fillet on the axis-negative end of the region.
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// fillet2 = The radius of the fillet on the axis-positive end of the region.
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// circum = If true, region will circumscribe the circle of the given radius/diameter.
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// from_end = If true, chamfer/bevel size is measured from end of region. If false, chamfer/bevel is measured outset from the radius of the region. (Default: false)
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// overage = The extra thickness of the mask. Default: `10`.
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// ends_only = If true, only mask the ends and not around the middle of the cylinder.
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// orient = Orientation. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the region. Use the `V_` constants from `constants.scad`. Default: `V_ZERO`.
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// Example:
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// $fa=2; $fs=2;
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// difference() {
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// cylinder(h=100, r1=60, r2=30, center=true);
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// cylinder_mask(l=100, r1=60, r2=30, chamfer=10, from_end=true);
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// }
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// cylinder_mask(l=100, r=50, chamfer1=10, fillet2=10) {
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// cube([100,50,100], center=true);
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// }
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module cylinder_mask(
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l,
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r=undef, r1=undef, r2=undef,
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d=undef, d1=undef, d2=undef,
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chamfer=undef, chamfer1=undef, chamfer2=undef,
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chamfang=undef, chamfang1=undef, chamfang2=undef,
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fillet=undef, fillet1=undef, fillet2=undef,
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circum=false, from_end=false,
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overage=10, ends_only=false,
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orient=ORIENT_Z, align=V_ZERO
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) {
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r1 = get_radius(r=r, d=d, r1=r1, d1=d1, dflt=1);
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r2 = get_radius(r=r, d=d, r1=r2, d1=d2, dflt=1);
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sides = segs(max(r1,r2));
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sc = circum? 1/cos(180/sides) : 1;
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vang = atan2(l, r1-r2)/2;
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ang1 = first_defined([chamfang1, chamfang, vang]);
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ang2 = first_defined([chamfang2, chamfang, 90-vang]);
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cham1 = first_defined([chamfer1, chamfer, 0]);
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cham2 = first_defined([chamfer2, chamfer, 0]);
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fil1 = first_defined([fillet1, fillet, 0]);
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fil2 = first_defined([fillet2, fillet, 0]);
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maxd = max(r1,r2);
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if ($children > 0) {
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difference() {
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children();
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cylinder_mask(l=l, r1=sc*r1, r2=sc*r2, chamfer1=cham1, chamfer2=cham2, chamfang1=ang1, chamfang2=ang2, fillet1=fil1, fillet2=fil2, orient=orient, from_end=from_end);
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}
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} else {
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orient_and_align([2*r1, 2*r1, l], orient, align) {
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difference() {
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union() {
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chlen1 = cham1 / (from_end? 1 : tan(ang1));
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chlen2 = cham2 / (from_end? 1 : tan(ang2));
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if (!ends_only) {
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cylinder(r=maxd+overage, h=l+2*overage, center=true);
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} else {
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if (cham2>0) up(l/2-chlen2) cylinder(r=maxd+overage, h=chlen2+overage, center=false);
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if (cham1>0) down(l/2+overage) cylinder(r=maxd+overage, h=chlen1+overage, center=false);
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if (fil2>0) up(l/2-fil2) cylinder(r=maxd+overage, h=fil2+overage, center=false);
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if (fil1>0) down(l/2+overage) cylinder(r=maxd+overage, h=fil1+overage, center=false);
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}
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}
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cyl(r1=sc*r1, r2=sc*r2, l=l, chamfer1=cham1, chamfer2=cham2, chamfang1=ang1, chamfang2=ang2, from_end=from_end, fillet1=fil1, fillet2=fil2);
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}
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}
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}
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}
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@ -456,26 +560,13 @@ module fillet_corner_mask(r=1.0)
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// $fa=2; $fs=2;
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// difference() {
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// cylinder(r=50, h=100, center=true);
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// up(50) !fillet_cylinder_mask(r=50, fillet=10, xtilt=30);
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// up(50) fillet_cylinder_mask(r=50, fillet=10, xtilt=30);
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// }
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module fillet_cylinder_mask(r=1.0, fillet=0.25, xtilt=0, ytilt=0)
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{
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dhx = 2*r*sin(xtilt);
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dhy = 2*r*sin(ytilt);
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dh = hypot(dhy, dhx);
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down(dh/2) {
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skew_xz(za=xtilt) {
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skew_yz(za=ytilt) {
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down(fillet) {
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difference() {
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up((dh+2*fillet)/2) {
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cube(size=[r*2+10, r*2+10, dh+2*fillet], center=true);
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}
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torus(or=r, ir=r-2*fillet);
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cylinder(r=r-fillet, h=2*fillet, center=true);
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}
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}
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}
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skew_xz(za=xtilt) {
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skew_yz(za=ytilt) {
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cylinder_mask(l=fillet*3, r=r, fillet2=fillet, ends_only=true, align=V_DOWN);
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}
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}
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}
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