dualism: airguides

1 files changed, 13 insertions, 1 deletions

diff --git a/fanduct.scad b/fanduct.scad
index fc57c57..c402312 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -118,25 +118,25 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
        sphere(r=fanduct_shell,$fn=30);
      }
   }
  }
 
          //     ***output
  module output(what,type=type) {
   module guideline(xyxy) {
    module pin(xy) {
     translate([xy[0],xy[1],0])
     cylinder(d=2*extrusion_width,h=2*fanduct_shell+inlet_h,$fn=6);
    }
-   xyxyxy=concat(xyxy,[[0,0]]);
+   xyxyxy=concat(xyxy,[[0,dual?nozzles_apart/2:0]]);
    for(i=[0:1:len(xyxyxy)-2])
     hull() for(j=[i,i+1]) pin(xyxyxy[j]);
   }
 
   module circus(what) {
    if(what=="in") {
     difference() {
      rotate_extrude($fn=smooth_f)
       polygon([
        [0,-fanduct_elevation+fanduct_blowtarget+epsilon],
        [fanduct_ir+fanduct_shell,fanduct_shell+fanduct_h/2],
        [fanduct_ir+fanduct_shell+fanduct_w/2,0],
@@ -226,24 +226,36 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
       translate([0,-nozzles_apart/2,-fanduct_elevation-fanduct_blowtarget]) sphere(d=.1);
      }
      translate([0,0,epsilon]) hull() for(my=[0:1]) mirror([0,my,0]) for(s=dual_spots) translate(s)
       mirror([0,0,1]) cylinder(d=fanduct_w+2*fanduct_shell+2,h=fanduct_elevation-fanduct_blowtarget+1);
      for(s=[-1,1]) translate([0,s*nozzles_apart/2,-1])
       cylinder(r=hotend_clearance,h=fanduct_h+2*fanduct_shell+2,$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);
     }
+   }else if(what=="airguides") {
+    far = fanduct_ir+fanduct_shell+fanduct_w;
+    near = fanduct_ir;
+    union() {
+     for(my=[0,1]) mirror([0,my,0]) {
+      guideline([ [-far             ,0], [0,0] ]);
+      guideline([ [-far             ,inlet_w/2/4],
+                  [-near            ,nozzles_apart/2] ]);
+      guideline([ [-near-fanduct_w/3,nozzles_apart/2+near+fanduct_w/3] ]);
+      guideline([ [0                ,nozzles_apart/2+near+fanduct_w/2] ]);
+     }
+    }
    }
   }
 
   if(dual) dual(what);
   else if(type=="circular") circus(what);
   else if(type=="3jets") jets(what);
  }
 
          //     ***air intake
  module intake(what) {
   module placeit() {
    translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell])