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Added chamfer_hole_mask()

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Revar Desmera 2019-02-22 16:20:26 -08:00
parent 96847ba535
commit deb6116e49
1 changed files with 36 additions and 6 deletions
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masks.scad
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@ -216,25 +216,55 @@ module chamfer_hole_mask(r=1.0, d=undef, chamfer=0.25)
// Create a mask that can be used to bevel/chamfer the end of a cylinder. // Create a mask that can be used to bevel/chamfer the end of a cylinder.
// Difference it from the cylinder to be chamferred. The center of the mask object // Difference it from the cylinder to be chamferred. The center of the mask object
// should align exactly with the center of the end of the cylinder to be chamferred. // should align exactly with the center of the end of the cylinder to be chamferred.
// r = radius of hole to chamfer. // r = Radius of cylinder to chamfer.
// d = Diameter of hole to chamfer. Use instead of r. // d = Diameter of cylinder to chamfer. Use instead of r.
// chamfer = size of the edge chamferred. (Default: 0.25) // chamfer = Size of the edge chamferred, inset from edge. (Default: 0.25)
// ang = Angle of chamfer in degrees from vertical. (Default: 45)
// 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)
// Example: // Example:
// $fa=2; $fs=2; // $fa=2; $fs=2;
// difference() { // difference() {
// cylinder(r=50, h=100, center=true); // cylinder(r=50, h=100, center=true);
// up(50) chamfer_cylinder_mask(r=50, chamfer=10); // up(50) chamfer_cylinder_mask(r=50, chamfer=10);
// } // }
module chamfer_cylinder_mask(r=1.0, d=undef, chamfer=0.25) module chamfer_cylinder_mask(r=1.0, d=undef, chamfer=0.25, ang=45, from_end=false)
{ {
h = chamfer * (from_end? 1 : tan(90-ang));
r = d==undef? r : d/2; r = d==undef? r : d/2;
r2 = r - chamfer * (from_end? tan(ang) : 1);
difference() { difference() {
cube([2*r+1, 2*r+1, 2*chamfer], center=true); cube([2*r+1, 2*r+1, 2*h], center=true);
down(chamfer+0.01) cylinder(r1=r, r2=r-chamfer, h=chamfer, center=false); down(h+0.01) cylinder(r1=r, r2=r2, h=h+0.01, center=false);
} }
} }
// Create a mask that can be used to bevel/chamfer the end of a cylindrical hole.
// Difference it from the hole to be chamferred. The center of the mask object
// should align exactly with the center of the end of the hole to be chamferred.
// r = Radius of hole to chamfer.
// d = Diameter of hole to chamfer. Use instead of r.
// chamfer = Size of the chamfer. (Default: 0.25)
// ang = Angle of chamfer in degrees from vertical. (Default: 45)
// from_end = If true, chamfer size is measured from end of hole. If false, chamfer is measured outset from the radius of the hole. (Default: false)
// Example:
// $fa=2; $fs=2;
// difference() {
// cube(100, center=true);
// cylinder(d=50, h=100.1, center=true);
// up(50) chamfer_hole_mask(d=50, chamfer=10);
// }
module chamfer_hole_mask(r=1.0, d=undef, chamfer=0.25, ang=45, from_end=false)
{
h = chamfer * (from_end? 1 : tan(90-ang));
r = d==undef? r : d/2;
r2 = r + chamfer * (from_end? tan(ang) : 1);
down(h-0.01) cylinder(r1=r, r2=r2, h=h, center=false);
}
// Creates a shape that can be used to fillet a vertical 90 degree edge. // Creates a shape that can be used to fillet a vertical 90 degree edge.
// Difference it from the object to be filletted. The center of the mask // Difference it from the object to be filletted. The center of the mask
// object should align exactly with the edge to be filletted. // object should align exactly with the edge to be filletted.