116 lines
2.9 KiB
OpenSCAD
116 lines
2.9 KiB
OpenSCAD
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time = 0;
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$fn = 100;
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SPROCKET_BASE_D = 19.05; //8 frames
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SPROCKET_BASE_H = 2.7;
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FRAME_C = (SPROCKET_BASE_D * PI) / 8;
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SPROCKET_H = 10;
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SPROCKET_W = 1;
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SPROCKET_L = 1.5;
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INNER_H = 10.6;
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TOP_D = 21.66;
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TOP_C = (TOP_D * PI) / 8;
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TOP_H = 1.4;
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TOP_BASE_D = 18.47;
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TOP_BASE_C = (TOP_BASE_D * PI) / 8;
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TOP_BASE_H = 2.96;
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LIP_D = 18.84;
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LIP_H = 0.33;
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LIP_C = (LIP_D * PI) / 8;
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echo(FRAME_C);
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module bearing_laser (x, y, z, width= 8, hole = true) {
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innerD = 8.05;
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outerD = 22.1 - .4;
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fuzz = 0.3;
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translate ([x, y, z]) {
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difference () {
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cylinder(r = (outerD / 2) + fuzz, h = width, center = true);
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if (hole) {
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cylinder(r = innerD / 2 - fuzz, h = width, center = true);
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}
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}
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}
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}
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module sprocket () {
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translate ([0, 0, -SPROCKET_H/2]) {
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difference () {
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translate([0, 0, 0]) scale([1, 1.2, 2]) rotate([90, 0, 90]) cylinder(r = SPROCKET_W/2, h = SPROCKET_L, center = true);
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translate([0, 0, -1]) cube([2, 2, 2], center = true);
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}
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}
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}
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module sprocketed_roller (sprockets = 8) {
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D = (FRAME_C * sprockets) / PI;
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LIP_D = (LIP_C * sprockets) / PI;
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TOP_D = (TOP_C * sprockets) / PI;
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TOP_BASE_D = (TOP_BASE_C * sprockets) / PI;
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INNER_D = D - 5.07;
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echo(D);
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echo(LIP_D);
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//top
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cylinder(r = D / 2, h = SPROCKET_BASE_H, center = true);
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//center
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translate([0, 0, (INNER_H / 2) + (SPROCKET_BASE_H / 2)]) {
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cylinder(r = INNER_D / 2, h = INNER_H, center = true);
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}
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//lip
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translate([0, 0, (TOP_BASE_H / 2) + INNER_H + (SPROCKET_BASE_H / 2) - (TOP_BASE_H / 2) + (LIP_H / 2)]) {
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cylinder(r = LIP_D / 2, h = LIP_H, center = true);
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}
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//bottom
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translate([0, 0, (TOP_H / 2) + (TOP_BASE_H / 2) + INNER_H + (SPROCKET_BASE_H / 2) + (TOP_BASE_H / 2) - (LIP_H / 2)]) {
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cylinder(r = TOP_D / 2, h = TOP_H, center = true);
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}
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//bottom base
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translate([0, 0, (TOP_BASE_H / 2) +INNER_H + (SPROCKET_BASE_H / 2)]) {
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cylinder(r = TOP_BASE_D / 2, h = TOP_BASE_H, center = true);
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}
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for (i = [0: sprockets]) {
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rotate([0, 0, i * 360 / sprockets]) translate([(D / 2) + (SPROCKET_H / 2) - .15, 0, (SPROCKET_BASE_H / 2) - (SPROCKET_L / 2)]) rotate([0, 90, 0]) sprocket();
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}
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}
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//rotate([0, 0, time]) sprocketed_roller(sprockets = 13);
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module corner (sprockets = 8) {
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}
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module contact_printer_roller () {
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union () {
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sprocketed_roller(13);
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translate([0, 0, 16]) cylinder(r = 12 / 2, h = 2, center = true);
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translate([0, 0, 22]) {
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difference () {
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translate([0, 0, 3]) cylinder(r = 8 / 2, h = 26, center = true, $fn = 50);
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translate([0, 6.5, 11]) cube([10, 10, 12], center = true);
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}
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}
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}
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}
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module contact_printer_roller2 () {
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innerD = 8.05;
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fuzz = 0.3;
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translate([0, 0, 21]) cylinder(r = innerD / 2 - fuzz, h = 10, center = true);
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sprocketed_roller(13);
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}
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//contact_printer_roller();
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//contact_printer_roller2();
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