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Port original sprocketed roller script to new style.

This commit is contained in:
Matt McWilliams 2023-03-31 18:33:27 -04:00
parent a820095c45
commit 8adafd796a
1 changed files with 42 additions and 39 deletions
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73
scad/16mm_sprocketed_roller.scad
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@ -1,59 +1,62 @@
SPROCKET_BASE_D = 19.05; //8 frames SprocketBaseD = 19.05; //8 frames
SPROCKET_BASE_H = 2.7; SprocketBaseH = 2.7;
INNER_D = 13.98; InnerD = 13.98;
INNER_H = 10.6; InnerH = 10.6;
TOP_BASE_D = 18.47; TopBaseD = 18.47;
TOP_BASE_H = 2.96; TopBaseH = 2.96;
LIP_D = 18.84; LipD = 18.84;
LIP_H = 0.33; LipH = 0.33;
HOLLOW_D = 4.7; HollowD = 4.7;
HOLLOW_BASE_D = 12.01; HollowBaseD = 12.01;
HOLLOW_BASE_H = 6.09; HollowBaseH = 6.09;
TOP_D = 21.66; TopD = 21.66;
TOP_H = 1.4; TopH = 1.4;
SPROCKET_H = 10; SprocketH = 10;
SPROCKET_W = 0.79; SprocketW = 0.79;
SPROCKET_L = 1.3; SprocketL = 1.3;
FRAME_C = (SPROCKET_BASE_D * PI) / 8; FrameC = (SprocketBaseD * PI) / 8;
//echo(FRAME_C);
$fn = 100; $fn = 100;
module sprocket () { module sprocket (pos = [0, 0, 0], rot = [0, 0, 0], bevel = false) {
//cube([SPROCKET_L, SPROCKET_W, SPROCKET_H], center = true); //cube([SprocketL, SprocketW, SprocketH], center = true);
translate ([0, 0, -SPROCKET_H/2]) { translate (pos) rotate(rot) {
difference () { difference () {
translate([0, 0, 0]) scale([1, 1, 2.25]) rotate([90, 0, 90]) cylinder(r = SPROCKET_W/2, h = SPROCKET_L, center = true); translate([0, 0, 0]) scale([1, 1, 2.25]) rotate([90, 0, 90]) cylinder(r = SprocketW/2, h = SprocketL, center = true);
translate([0, 0, -1]) cube([2, 2, 2], center = true); translate([0, 0, -1]) cube([2, 2, 2], center = true);
//translate([1.5, 0, 0]) rotate([0, -5, 0]) cube([2, 2, 2], center = true); if (bevel) {
//translate([-1.5, 0, 0]) rotate([0, 5, 0]) cube([2, 2, 2], center = true); translate([1.5, 0, 0]) rotate([0, -5, 0]) cube([2, 2, 2], center = true);
translate([-1.5, 0, 0]) rotate([0, 5, 0]) cube([2, 2, 2], center = true);
}
} }
} }
} }
module sprocketed_roller () { module sprocketed_roller (pos = [0, 0, 0], bevel = false) {
translate(pos) {
difference () { difference () {
union () { union () {
cylinder(r = SPROCKET_BASE_D / 2, h = SPROCKET_BASE_H, center = true); cylinder(r = SprocketBaseD / 2, h = SprocketBaseH, center = true);
translate([0, 0, (INNER_H / 2) + (SPROCKET_BASE_H / 2)]) cylinder(r = INNER_D / 2, h = INNER_H, center = true); translate([0, 0, (InnerH / 2) + (SprocketBaseH / 2)]) cylinder(r = InnerD / 2, h = InnerH, center = true);
translate([0, 0, (TOP_BASE_H / 2) +INNER_H + (SPROCKET_BASE_H / 2)]) cylinder(r = TOP_BASE_D / 2, h = TOP_BASE_H, center = true); translate([0, 0, (TopBaseH / 2) +InnerH + (SprocketBaseH / 2)]) cylinder(r = TopBaseD / 2, h = TopBaseH, center = true);
translate([0, 0, (TOP_BASE_H / 2) + INNER_H + (SPROCKET_BASE_H / 2) - (TOP_BASE_H / 2) + (LIP_H / 2)]) cylinder(r = LIP_D / 2, h = LIP_H, center = true); translate([0, 0, (TopBaseH / 2) + InnerH + (SprocketBaseH / 2) - (TopBaseH / 2) + (LipH / 2)]) cylinder(r = LipD / 2, h = LipH, center = true);
translate([0, 0, (TOP_BASE_H / 2) + INNER_H + (SPROCKET_BASE_H / 2) + (TOP_BASE_H / 2) - (LIP_H / 2)]) cylinder(r = LIP_D / 2, h = LIP_H, center = true); translate([0, 0, (TopBaseH / 2) + InnerH + (SprocketBaseH / 2) + (TopBaseH / 2) - (LipH / 2)]) cylinder(r = LipD / 2, h = LipH, center = true);
translate([0, 0, (TOP_H / 2) + (TOP_BASE_H / 2) + INNER_H + (SPROCKET_BASE_H / 2) + (TOP_BASE_H / 2) - (LIP_H / 2)]) cylinder(r = TOP_D / 2, h = TOP_H, center = true); translate([0, 0, (TopH / 2) + (TopBaseH / 2) + InnerH + (SprocketBaseH / 2) + (TopBaseH / 2) - (LipH / 2)]) cylinder(r = TopD / 2, h = TopH, center = true);
} }
cylinder(r = HOLLOW_D / 2, h = 100, center = true); cylinder(r = HollowD / 2, h = 100, center = true);
translate([0, 0, (HOLLOW_BASE_H / 2) - (SPROCKET_BASE_H / 2)]) cylinder(r = HOLLOW_BASE_D/2, h = HOLLOW_BASE_H + 0.1, center = true); translate([0, 0, (HollowBaseH / 2) - (SprocketBaseH / 2)]) cylinder(r = HollowBaseD/2, h = HollowBaseH + 0.1, center = true);
} }
for (i = [0: 8]) { for (i = [0: 8]) {
rotate([0, 0, i * 360 / 8]) translate([(SPROCKET_BASE_D / 2) + (SPROCKET_H / 2) - .15, 0, (SPROCKET_BASE_H / 2) - (SPROCKET_L / 2)]) rotate([0, 90, 0]) sprocket(); rotate([0, 0, i * 360 / 8]) sprocket([(SprocketBaseD / 2) -.01, 0, (SprocketBaseH / 2) - (SprocketL / 2)], [0, 90, 0], bevel);
}
} }
} }
sprocketed_roller(); sprocketed_roller( bevel = true);