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$fa = 1;
$fs = 0.4;
bheight = 2.8;
theight = 40.0;
module part_1() {
difference(){
union() {
linear_extrude(theight){
polygon(points=[[-8.0,0.0],[-40.0,-52.0],[40.0,-52],[8.0,0.0]]);
}
linear_extrude(theight){
circle($fn = 0, $fa = 12, $fs = 2, r = 30.00);
}
}
translate([0,0,bheight]) {
union() {
linear_extrude(theight){
polygon(points=[[-6.0,0.0],[-36.0,-50.0],[36.0,-50],[5.0,0.0]]);
}
linear_extrude(theight){
circle($fn = 0, $fa = 12, $fs = 2, r = 28.00);
}
}
}
}
}
module part_2() {
union(){
difference(){
union(){
translate([0,0,bheight]) {
union() {
linear_extrude(bheight){
polygon(points=[[-8.0,0.0],[-40.0,-52.0],[40.0,-52],[8.0,0.0]]);
}
linear_extrude(bheight){
circle($fn = 0, $fa = 12, $fs = 2, r = 30.00);
}
}
}
union() {
linear_extrude(bheight){
polygon(points=[[-6.0,0.0],[-36.0,-50.0],[36.0,-50],[5.0,0.0]]);
}
linear_extrude(bheight){
circle($fn = 0, $fa = 12, $fs = 2, r = 28.00);
}
}
}
translate([0,0,-(bheight/2.0)]) {
linear_extrude(bheight*3.0){
circle($fn = 0, $fa = 12, $fs = 2, r = 26.00);
}
}
}
translate([0.0,-45.5,(bheight*2.0)+5.0]) {
difference(){
cube(13,10,10,center=true);
rotate([90,0,0]) {
cylinder(r=3,h=20,center=true);
}
}
}
}
}
// part_1()
part_2();
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