Progress on variable roller
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@ -44,80 +44,6 @@ module sprocket (pos = [0, 0, 0], rot = [0, 0, 0], bevel = false) {
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}
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}
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module sprocketed_roller_top_sprockets (pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8, D, bevel = 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) {
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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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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) {
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//top
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if (!reinforced) {
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sprocketed_roller_top_sprockets(sprockets = sprockets, D = D, bevel = bevel);
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} else {
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ReinforcedRegistration = (InnerD - 5) / 2;
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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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}
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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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}
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module sprocketed_roller (pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8, bevel = false, reinforced = false, model = "") {
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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);
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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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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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module sprocketed_roller_reinforced(pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8, bevel = true, model = "") {
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D = (FrameC * sprockets) / PI;
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difference () {
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sprocketed_roller_top_sprockets (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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}
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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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@ -153,6 +79,113 @@ module m3_nut_void (pos = [0, 0, 0], rot = [0, 0, 0], H = 20) {
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}
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}
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//sprocketed_roller(sprockets = 18, bevel = false, model = "gearbox_motor", reinforced = true);
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color("red") sprocketed_roller_reinforced(sprockets = 18, bevel = false, model = "gearbox_motor");
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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(R(6), 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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BoltsY = ReinforcedRegistration + 12;
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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_top_sprockets(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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}
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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 = "") {
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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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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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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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PART = "sprocketed_wheel";
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if (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);
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} else if (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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