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-rw-r--r--fanduct.scad66
1 files changed, 61 insertions, 5 deletions
diff --git a/fanduct.scad b/fanduct.scad
index 52aee0e..a17b261 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -4,5 +4,5 @@ extrusion_width=.5; layer_height=.2; // print parameters
epsilon=.005; // for finer cuts
-type="circular"; // circular|3jets
+type="simple"; // circular|3jets
ductshape="square"; // square|round
dual=true; // dual or single
@@ -105,7 +105,39 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
}
}
+ module dual_simple() {
+ for(my=[0,1]) mirror([0,my,0])
+ if(what=="in") {
+ sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell;
+ translate([0,nozzles_apart/2,0])
+ intersection() {
+ rotate_extrude($fn=smooth_f)
+ translate([fanduct_ir,0]) square([sh,sv]);
+ translate([-fanduct_ir-sh-1,0,-1])
+ cube(size=[fanduct_ir+sh+2,fanduct_ir+sh+2,sv+2]);
+ }
+ translate([-fanduct_ir-sh,-epsilon,0])
+ cube(size=[sh,nozzles_apart/2+2*epsilon,sv]);
+ translate([0,sh/2+fanduct_ir+nozzles_apart/2,0]) cylinder(d=sh,h=sv,$fn=36);
+ }else if(what=="out") {
+ sh = fanduct_w; sv = fanduct_h;
+ translate([0,nozzles_apart/2,fanduct_shell])
+ intersection() {
+ rotate_extrude($fn=smooth_f)
+ translate([fanduct_ir+fanduct_shell,0]) square([sh,sv]);
+ translate([-fanduct_ir-2*fanduct_shell-sh-1,-1,0])
+ cube(size=[fanduct_ir+2*fanduct_shell+sh+2,fanduct_ir+2*fanduct_shell+sh+2,sv]);
+ }
+ translate([-fanduct_ir-fanduct_shell-sh,-epsilon,fanduct_shell])
+ cube(size=[sh,nozzles_apart/2+2*epsilon,sv]);
+ translate([0,sh/2+fanduct_shell+fanduct_ir+nozzles_apart/2,fanduct_shell])
+ cylinder(d=sh,h=sv,$fn=36);
+ }
+ }
- if(dual) dual();
- else single();
+ if(dual) {
+ if(type=="simple")
+ dual_simple();
+ else dual();
+ }else single();
}
@@ -256,6 +288,30 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
}
- if(dual) dual(what);
- else if(type=="circular") circus(what);
+ module dual_simple(what=what) {
+ for(my=[0:1]) mirror([0,my,0]) if(what=="in") {
+ difference() {
+ hull() {
+ translate([0,nozzles_apart/2+fanduct_ir+fanduct_shell+fanduct_w/2,0])
+ cylinder(d=fanduct_w+2*fanduct_shell,h=fanduct_h*2/3+2*fanduct_shell);
+ translate([0,nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget])
+ rotate([0,90,0]) cylinder(r=.5,h=fanduct_w*2,center=true);
+ }
+ rr = 2*(fanduct_ir+fanduct_shell*2+fanduct_w+2);
+ translate([-rr/2,0,0]) mirror([0,0,1]) cube(size=[rr,rr,rr]);
+ }
+ }else if(what=="out") {
+ hull() {
+ translate([0,nozzles_apart/2+fanduct_ir+fanduct_shell+fanduct_w/2,fanduct_shell])
+ cylinder(d=fanduct_w,h=fanduct_h*2/3);
+ translate([0,nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget])
+ rotate([0,90,0]) cylinder(d=.5,h=fanduct_w*2,center=true);
+ }
+ }
+ }
+
+ if(dual) {
+ if(type=="simple") dual_simple(what);
+ else dual(what);
+ }else if(type=="circular") circus(what);
else if(type=="3jets") jets(what);
}