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yarn-bobbin.scad
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yarn-bobbin.scad
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$fn = 64;
%circle(50);
for (i = [0 : 1 : 2]) {
translate([0, 0, i * 2.8])
union() {
rotate([180, 0, 0])
linear_extrude(0.8, scale = 0.99) bobbin();
translate([0, 0, 0])
linear_extrude(0.4)
bobbin();
translate([0, 0, 0.4])
linear_extrude(0.8, scale = 0.99)
bobbin();
}
}
module bobbin() {
bobbin50();
}
module bobbin50() {
union()
difference() {
scale(0.35)
union() {
for (i = [0 : 1 : 4])
rotate([0, 0, i * 72])
translate([-70, 0])
scale([1.8, .3])
circle(40);
circle(r = 60);
}
scale(0.35)
for (i = [0 : 1 : 4])
rotate([0, 0, i * 72])
translate([-80, 0])
scale([1.5, .1])
offset(-0.4 * 8)
circle(40);
scale(0.35)
for (i = [0 : 1 : 4])
rotate([0, 0, 36 + i * 72])
translate([-80, 0])
scale([3.075, 2])
circle(15);
circle(r = 6.4);
}
}
%bobbin80();
module bobbin80() {
union()
difference() {
scale(0.35)
union() {
for (i = [0 : 1 : 4])
rotate([0, 0, i * 72])
translate([-115, 0])
scale([1.8, .3])
circle(60);
circle(r = 100);
}
scale(0.35)
for (i = [0 : 1 : 4])
rotate([0, 0, i * 72])
translate([-117, 0])
scale([1.6, .15])
offset(-0.4 * 8)
circle(60);
scale(0.35 )
for (i = [0 : 1 : 4])
rotate([0, 0, 36 + i * 72])
translate([-152, 0])
scale([3, 2])
circle(30);
circle(r = 6.4);
}
}