mirror of https://github.com/CIRCL/Circlean
61 lines
1.7 KiB
OpenSCAD
61 lines
1.7 KiB
OpenSCAD
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// Advanced shapes
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//
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// v 1.0 - 24/01/2015 - initial release (MD)
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// v 1.1 - 05/02/2014 - added half-sphere (MD)
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//
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module round_cube(x,y,z,r) {
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hull() {
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translate([r, r, 0]) cylinder(h = z, r = r) ;
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translate([r, y - r, 0]) cylinder(h = z, r = r) ;
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translate([x - r, r, 0]) cylinder(h = z, r = r) ;
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translate([x - r, y - r, 0]) cylinder(h = z, r = r) ;
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}
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}
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module round_belt(x,y,z,r,t) {
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// x, y, z, r are outer dimensions, thickness t is inwards
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difference() {
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round_cube(x, y, z, r) ;
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translate([t, t, 0]) round_cube(x-2*t, y-2*t, z, r-t) ;
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}
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}
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module spacers(x1,x2,y1,y2,z,r) {
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translate([x1, y1, 0]) cylinder(h = z, r = r) ;
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translate([x1, y2, 0]) cylinder(h = z, r = r) ;
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translate([x2, y1, 0]) cylinder(h = z, r = r) ;
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translate([x2, y2, 0]) cylinder(h = z, r = r) ;
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}
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module truncated_square_pyramid(x1,y1,x2,y2,z) {
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dx = (x1-x2)/2 ;
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dy = (y1-y2)/2 ;
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ax = 90 - atan2(z, dx) ;
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ay = 90 - atan2(z, dy) ;
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difference() {
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translate([0, 0, z/2]) cube(size=[x1,y1,z], center=true) ;
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union() {
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translate([-x1/2, 0, 0]) rotate([0, ax, 0])
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translate([-x1/2, 0, z]) cube(size=[x1,y1,2*z], center=true) ;
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translate([ x1/2, 0, 0]) rotate([0, -ax, 0])
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translate([ x1/2, 0, z]) cube(size=[x1,y1,2*z], center=true) ;
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translate([0, -y1/2, 0]) rotate([-ay, 0, 0])
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translate([0, -y1/2, z]) cube(size=[x1,y1,2*z], center=true) ;
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translate([0, y1/2, 0]) rotate([ ay, 0, 0])
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translate([0, y1/2, z]) cube(size=[x1,y1,2*z], center=true) ;
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}
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}
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}
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module halfsphere( r) {
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difference() {
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sphere (r = r) ;
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translate([0, 0, -r/2])
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cube(size=[2*r, 2*r, r], center=true) ;
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}
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}
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// --- end of file ---
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