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Added planetary gear examples to spur_gear() and spur_gear2d()

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Revar Desmera 2023-06-17 22:39:06 -07:00
parent def9f0c229
commit 45a3bc44d4
1 changed files with 53 additions and 0 deletions
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gears.scad
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@ -109,6 +109,36 @@
// color("#fc7") left(r1+r4) zrot(a4) spur_gear(pitch,n4,thickness,hole,hide=n4-3); // color("#fc7") left(r1+r4) zrot(a4) spur_gear(pitch,n4,thickness,hole,hide=n4-3);
// color("#ccc") fwd(r1) right(pitch*$t) // color("#ccc") fwd(r1) right(pitch*$t)
// rack(pitch=pitch,teeth=n5,thickness=thickness,height=rack_base,anchor=CENTER,orient=BACK); // rack(pitch=pitch,teeth=n5,thickness=thickness,height=rack_base,anchor=CENTER,orient=BACK);
// Example(Anim,Frames=36,VPT=[0,0,0],VPR=[55,0,25],VPD=375): Planetary Gear Assembly
// rteeth=56; pteeth=16; cteeth=24;
// pitch=5; thick=10; pa=20;
// prad = (pitch_radius(pitch,rteeth) +
// pitch_radius(pitch,cteeth)) / 2;
// rrad = outer_radius(pitch,rteeth,interior=true) + 5;
// diff()
// cyl(r=rrad,l=thick)
// tag("remove")
// spur_gear(
// pitch=pitch, teeth=rteeth, thickness=thick+1,
// pressure_angle=pa, interior=true);
// for (a=[0:3]) {
// zrot($t*90+a*90) back(prad) {
// color("green")
// spur_gear(
// pitch=pitch, teeth=pteeth,
// thickness=thick,
// shaft_diam=5,
// pressure_angle=pa,
// spin=-$t*90*rteeth/pteeth);
// }
// }
// color("orange")
// zrot($t*90*rteeth/cteeth+$t*90+180/cteeth)
// spur_gear(
// pitch=pitch, teeth=cteeth,
// thickness=thick,
// shaft_diam=5,
// pressure_angle=pa);
function spur_gear( function spur_gear(
pitch = 3, pitch = 3,
teeth = 11, teeth = 11,
@ -228,6 +258,29 @@ module spur_gear(
// spur_gear2d(pitch=5, teeth=20, pressure_angle=20); // spur_gear2d(pitch=5, teeth=20, pressure_angle=20);
// Example(2D): Partial Gear // Example(2D): Partial Gear
// spur_gear2d(pitch=5, teeth=20, hide=15, pressure_angle=20); // spur_gear2d(pitch=5, teeth=20, hide=15, pressure_angle=20);
// Example(2D): Planetary Gear Assembly
// rteeth=56; pteeth=16; cteeth=24;
// pitch=5; pa=20;
// prad = (pitch_radius(pitch,rteeth) +
// pitch_radius(pitch,cteeth)) / 2;
// rrad = outer_radius(pitch,rteeth,interior=true) + 5;
// difference() {
// circle(r=rrad);
// spur_gear2d(
// pitch=pitch, teeth=rteeth,
// pressure_angle=pa, interior=true);
// }
// for (a=[0:3]) {
// zrot(a*90) back(prad) {
// color("green")
// spur_gear2d(
// pitch=pitch, teeth=pteeth,
// pressure_angle=pa);
// }
// }
// color("orange")
// zrot(180/cteeth)
// spur_gear2d(pitch=pitch, teeth=cteeth, pressure_angle=pa);
// Example(2D): Called as a Function // Example(2D): Called as a Function
// path = spur_gear2d(pitch=8, teeth=16); // path = spur_gear2d(pitch=8, teeth=16);
// polygon(path); // polygon(path);