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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
@@ -5,3 +5,3 @@ epsilon=.005; // for finer cuts
5 5
6 type="circular"; // circular|3jets 6 type="simple"; // circular|3jets
7 ductshape="square"; // square|round 7 ductshape="square"; // square|round
@@ -106,5 +106,37 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
106 } 106 }
107 module dual_simple() {
108 for(my=[0,1]) mirror([0,my,0])
109 if(what=="in") {
110 sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell;
111 translate([0,nozzles_apart/2,0])
112 intersection() {
113 rotate_extrude($fn=smooth_f)
114 translate([fanduct_ir,0]) square([sh,sv]);
115 translate([-fanduct_ir-sh-1,0,-1])
116 cube(size=[fanduct_ir+sh+2,fanduct_ir+sh+2,sv+2]);
117 }
118 translate([-fanduct_ir-sh,-epsilon,0])
119 cube(size=[sh,nozzles_apart/2+2*epsilon,sv]);
120 translate([0,sh/2+fanduct_ir+nozzles_apart/2,0]) cylinder(d=sh,h=sv,$fn=36);
121 }else if(what=="out") {
122 sh = fanduct_w; sv = fanduct_h;
123 translate([0,nozzles_apart/2,fanduct_shell])
124 intersection() {
125 rotate_extrude($fn=smooth_f)
126 translate([fanduct_ir+fanduct_shell,0]) square([sh,sv]);
127 translate([-fanduct_ir-2*fanduct_shell-sh-1,-1,0])
128 cube(size=[fanduct_ir+2*fanduct_shell+sh+2,fanduct_ir+2*fanduct_shell+sh+2,sv]);
129 }
130 translate([-fanduct_ir-fanduct_shell-sh,-epsilon,fanduct_shell])
131 cube(size=[sh,nozzles_apart/2+2*epsilon,sv]);
132 translate([0,sh/2+fanduct_shell+fanduct_ir+nozzles_apart/2,fanduct_shell])
133 cylinder(d=sh,h=sv,$fn=36);
134 }
135 }
107 136
108 if(dual) dual(); 137 if(dual) {
109 else single(); 138 if(type=="simple")
139 dual_simple();
140 else dual();
141 }else single();
110 } 142 }
@@ -257,4 +289,28 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
257 289
258 if(dual) dual(what); 290 module dual_simple(what=what) {
259 else if(type=="circular") circus(what); 291 for(my=[0:1]) mirror([0,my,0]) if(what=="in") {
292 difference() {
293 hull() {
294 translate([0,nozzles_apart/2+fanduct_ir+fanduct_shell+fanduct_w/2,0])
295 cylinder(d=fanduct_w+2*fanduct_shell,h=fanduct_h*2/3+2*fanduct_shell);
296 translate([0,nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget])
297 rotate([0,90,0]) cylinder(r=.5,h=fanduct_w*2,center=true);
298 }
299 rr = 2*(fanduct_ir+fanduct_shell*2+fanduct_w+2);
300 translate([-rr/2,0,0]) mirror([0,0,1]) cube(size=[rr,rr,rr]);
301 }
302 }else if(what=="out") {
303 hull() {
304 translate([0,nozzles_apart/2+fanduct_ir+fanduct_shell+fanduct_w/2,fanduct_shell])
305 cylinder(d=fanduct_w,h=fanduct_h*2/3);
306 translate([0,nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget])
307 rotate([0,90,0]) cylinder(d=.5,h=fanduct_w*2,center=true);
308 }
309 }
310 }
311
312 if(dual) {
313 if(type=="simple") dual_simple(what);
314 else dual(what);
315 }else if(type=="circular") circus(what);
260 else if(type=="3jets") jets(what); 316 else if(type=="3jets") jets(what);