Add sprocketed_roller OpenSCAD files
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include <./common/common.scad>;
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SprocketBaseD = 19.05; //8 frames
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SprocketBaseH = 2.7;
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SprocketH = 10;
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SprocketW = 0.79;
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SprocketL = 1.3;
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InnerD = 13.98;
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InnerH = 10.6;
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TopBaseD = 18.47;
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TopBaseH = 2.96;
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LipD = 18.84;
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LipH = 0.33;
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TopD = 21.66;
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TopH = 1.4;
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HollowD = 4.7;
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HollowBaseD = 12.01;
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HollowBaseH = 6.09;
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$fn = 100;
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module sprocket (pos = [0, 0, 0], rot = [0, 0, 0], bevel = false) {
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//cube([SprocketL, SprocketW, SprocketH], center = true);
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translate (pos) rotate(rot) {
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difference () {
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translate([0, 0, 0]) scale([1, 1, 2.25]) rotate([90, 0, 90]) cylinder(r = SprocketW/2, h = SprocketL, center = true);
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translate([0, 0, -1]) cube([2, 2, 2], center = true);
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if (bevel) {
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translate([1.5, 0, 0]) rotate([0, -5, 0]) cube([2, 2, 3], center = true);
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translate([-1.5, 0, 0]) rotate([0, 5, 0]) cube([2, 2, 3], center = true);
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}
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}
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}
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}
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module sprocketed_roller (pos = [0, 0, 0], bevel = false) {
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SoundtrackH = (TopBaseH / 2) + InnerH + (SprocketBaseH / 2);
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translate(pos) {
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difference () {
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union () {
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//sprocket base
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cylinder(r = R(SprocketBaseD), h = SprocketBaseH, center = true);
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//center
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translate([0, 0, (InnerH / 2) + (SprocketBaseH / 2)]) cylinder(r = R(InnerD), h = InnerH, center = true);
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//soundtrack area
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translate([0, 0, SoundtrackH]) cylinder(r = R(TopBaseD), h = TopBaseH, center = true);
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translate([0, 0, SoundtrackH - (TopBaseH / 2) + (LipH / 2)]) cylinder(r = R(LipD), h = LipH, center = true);
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translate([0, 0, SoundtrackH + (TopBaseH / 2) - (LipH / 2)]) cylinder(r = R(LipD), h = LipH, center = true);
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translate([0, 0, SoundtrackH + (TopH / 2) + (TopBaseH / 2) - (LipH / 2)]) cylinder(r = R(TopD), h = TopH, center = true);
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}
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cylinder(r = HollowD / 2, h = 100, center = true);
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translate([0, 0, (HollowBaseH / 2) - (SprocketBaseH / 2)]) cylinder(r = R(HollowBaseD), h = HollowBaseH + 0.1, center = true);
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}
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for (i = [0: 8]) {
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rotate([0, 0, i * 360 / 8]) sprocket([(SprocketBaseD / 2) -.01, 0, (SprocketBaseH / 2) - (SprocketL / 2)], [0, 90, 0], bevel);
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}
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}
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}
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sprocketed_roller( bevel = true);
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include <./common/common.scad>;
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SprocketBaseD = 19.05; //8 frames
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SprocketBaseH = 2.7;
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FrameC = (SprocketBaseD * PI) / 8;
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SprocketH = 10;
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SprocketW = 1;
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SprocketL = 1.5;
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InnerH = 10.6;
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TopBaseD = 18.47;
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TopBaseC = (TopBaseD * PI) / 8;
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TopBaseH = 2.96;
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LipD = 18.84;
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LipH = 0.33;
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LipC = (LipD * PI) / 8;
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TopD = 21.66;
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TopC = (TopD * PI) / 8;
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TopH = 1.4;
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motorShaftD = 6;
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motorShaftHobble = 0.8;
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echo(FrameC);
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$fn = 100;
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module sprocket (pos = [0, 0, 0], rot = [0, 0, 0], bevel = false) {
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translate (pos) rotate(rot) {
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difference () {
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translate([0, 0, 0]) scale([1, 1, 2.25]) rotate([90, 0, 90]) cylinder(r = SprocketW/2, h = SprocketL, center = true);
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translate([0, 0, -1]) cube([2, 2, 2], center = true);
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if (bevel) {
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translate([1.5, 0, 0]) rotate([0, -5, 0]) cube([2, 2, 3], center = true);
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translate([-1.5, 0, 0]) rotate([0, 5, 0]) cube([2, 2, 3], center = true);
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}
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}
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}
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}
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module gearbox_motor_shaft (H = 16, pad = 0) {
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difference () {
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cylinder(r = R(motorShaftD) + pad, h = H, center = true, $fn = 60);
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translate([motorShaftD - motorShaftHobble + pad, 0, 0]) cube([motorShaftD, motorShaftD, H + 1], center = true);
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}
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}
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module gearbox_motor_shaft_void (H = 16) {
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pad = 0.2;
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gearbox_motor_shaft(H, pad);
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}
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module bearing_laser_void (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 m3_nut_void (pos = [0, 0, 0], rot = [0, 0, 0], H = 20) {
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translate(pos) rotate(rot) {
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translate([0, 6, -4.25 + (2.75/2)]) cube([6, 12, 2.75], center = true);
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cylinder(r = R(3.25), h = H, center = true, $fn = 30);
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translate([0, 0, -4.25]) hex(6, 2.75);
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translate([0, 0, (H/2)-4.5]) cylinder(r = R(6), h = 5, center = true, $fn = 40);
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}
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}
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module m3_bolt_void (pos = [0, 0, 0]) {
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translate(pos) {
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cylinder(r = R(3.25), h = 40, center = true, $fn = 30);
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translate([0, 0, 14]) cylinder(r = R(6), h = 5, center = true, $fn = 40);
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}
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}
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module sprocketed_wheel_m3_nut_void (pos = [0, 0, 0]) {
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translate(pos) {
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cylinder(r = R(3.25), h = 40, center = true, $fn = 30);
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hex(6.3, 4);
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}
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}
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module sprocketed_roller_sprocket_wheel (pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8, D, bevel = false, bolts = false) {
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translate(pos) rotate(rot) {
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cylinder(r = R(D), h = SprocketBaseH, center = true);
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for (i = [0: sprockets]) {
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rotate([0, 0, i * 360 / sprockets]) sprocket([(D / 2) - .01, 0, (SprocketBaseH / 2) - (SprocketL / 2)], [0, 90, 0], bevel);
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}
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}
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}
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module sprocketed_roller_body (pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8, bevel = false, reinforced = false, bolts = false) {
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D = (FrameC * sprockets) / PI;
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LipD = (LipC * sprockets) / PI;
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TopD = (TopC * sprockets) / PI;
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TopBaseD = (TopBaseC * sprockets) / PI;
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InnerD = D - 5.07;
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ReinforcedRegistration = (InnerD - 5) / 2;
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ReinforcedRegistrationCorner = sqrt(pow(2.5, 2) + pow(2.5, 2));
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BoltsY = ReinforcedRegistration + 12.5;
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echo("D", D);
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echo("LipD", LipD);
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echo("InnerD", InnerD);
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translate(pos) rotate(rot) difference() {
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//top
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union () {
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if (!reinforced) {
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sprocketed_roller_sprocket_wheel(sprockets = sprockets, D = D, bevel = bevel);
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} else {
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cube([ReinforcedRegistration + 5, ReinforcedRegistration, SprocketBaseH], center = true);
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cube([ReinforcedRegistration, ReinforcedRegistration + 5, SprocketBaseH], center = true);
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translate([(ReinforcedRegistration/2), (ReinforcedRegistration/2), 0]) rotate([0, 0, 45]) cube([ReinforcedRegistrationCorner, ReinforcedRegistrationCorner, SprocketBaseH], center = true);
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}
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//center
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translate([0, 0, (InnerH / 2) + (SprocketBaseH / 2)]) {
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cylinder(r = R(InnerD), h = InnerH, center = true);
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}
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//lip
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translate([0, 0, (TopBaseH / 2) + InnerH + (SprocketBaseH / 2) - (TopBaseH / 2) + (LipH / 2)]) {
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cylinder(r = R(LipD), h = LipH, center = true);
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}
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//bottom
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translate([0, 0, (TopH / 2) + (TopBaseH / 2) + InnerH + (SprocketBaseH / 2) + (TopBaseH / 2) - (LipH / 2)]) {
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cylinder(r = R(TopD), h = TopH, center = true);
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}
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//bottom base
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translate([0, 0, (TopBaseH / 2) + InnerH + (SprocketBaseH / 2)]) {
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cylinder(r = R(TopBaseD), h = TopBaseH, center = true);
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}
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}
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if (reinforced && bolts) {
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m3_bolt_void([0, BoltsY/2, 0]);
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m3_bolt_void([0, -BoltsY/2, 0]);
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}
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}
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}
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module sprocketed_roller (pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8, bevel = false, reinforced = false, bolts = false, model = "", set_screw_top = false) {
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D = (FrameC * sprockets) / PI;
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difference () {
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union () {
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sprocketed_roller_body(pos = pos, rot = rot, sprockets = sprockets, bevel = bevel, reinforced = reinforced, bolts = bolts);
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//translate(pos) rotate(rot) addition();
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}
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if (model == "gearbox_motor") {
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translate(pos) rotate(rot) translate([0, 0, 10]) gearbox_motor_shaft_void();
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if (set_screw_top) {
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translate(pos) rotate(rot) rotate([180, 0, 0]) m3_bolt_void([0, 0, -11]);
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} else {
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translate(pos) rotate(rot) m3_nut_void(pos=[D/4, 0, 8.5], rot = [90, 0, 90], H = D/2);
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}
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}
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}
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}
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module sprocketed_roller_reinforced (pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8, bevel = true, model = "", bolts = true) {
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D = (FrameC * sprockets) / PI;
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InnerD = D - 5.07;
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ReinforcedRegistration = (InnerD - 5) / 2;
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BoltsY = ReinforcedRegistration + 12;
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difference () {
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sprocketed_roller_sprocket_wheel (pos = pos, rot = rot, sprockets = sprockets, D = D, bevel = bevel);
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scale([1.01, 1.01, 1]) sprocketed_roller (pos = pos, rot = rot, sprockets = sprockets, bevel = bevel, reinforced = true, model = model);
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if (bolts) {
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sprocketed_wheel_m3_nut_void([0, BoltsY/2, -4]);
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sprocketed_wheel_m3_nut_void([0, -BoltsY/2, -4]);
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}
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}
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}
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LIBRARY = false;
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PART = "sprocketed_roller_reinforced";
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if (!LIBRARY && PART == "sprocketed_roller_reinforced") {
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rotate([180, 0, 0]) sprocketed_roller(sprockets = 18, bevel = false, model = "gearbox_motor", reinforced = true, bolts = true, set_screw_top = true);
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} else if (!LIBRARY && PART == "sprocketed_wheel") {
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rotate([180, 0, 0]) color("red") sprocketed_roller_reinforced(sprockets = 18, bevel = false, model = "gearbox_motor", bolts = true);
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}
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