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-rw-r--r--fanduct.scad29
1 files changed, 28 insertions, 1 deletions
diff --git a/fanduct.scad b/fanduct.scad
index b9689c9..0cd89f7 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -213,5 +213,32 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
}
- if(type=="circular") circus(what);
+ module dual(what=what) {
+ module hulls(spots=dual_spots) {
+ for(my=[0,1]) mirror([0,my,0]) for(pn=[0:1:len(spots)-2]) hull() {
+ for(p=[spots[pn],spots[pn+1]]) translate(p) children(0);
+ children([1:$children-1]);
+ }
+ }
+ if(what=="in") {
+ difference() {
+ hulls() {
+ cylinder(d=fanduct_w+2*fanduct_shell,h=2*fanduct_shell+fanduct_h/2);
+ translate([0,-nozzles_apart/2,-fanduct_elevation-fanduct_blowtarget]) sphere(d=.1);
+ }
+ translate([0,0,epsilon]) hull() for(my=[0:1]) mirror([0,my,0]) for(s=dual_spots) translate(s)
+ mirror([0,0,1]) cylinder(d=fanduct_w+2*fanduct_shell+2,h=fanduct_elevation-fanduct_blowtarget+1);
+ for(s=[-1,1]) translate([0,s*nozzles_apart/2,-1])
+ cylinder(r=hotend_clearance,h=fanduct_h+2*fanduct_shell+2,$fn=smooth_f);
+ }
+ }else if(what=="out") {
+ hulls() {
+ translate([0,0,fanduct_shell]) cylinder(d=fanduct_w,h=fanduct_h/2-fanduct_shell/2);
+ translate([0,-nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget]) sphere(d=.1);
+ }
+ }
+ }
+
+ if(dual) dual(what);
+ else if(type=="circular") circus(what);
else if(type=="3jets") jets(what);
}