more advanced chimera hotend

1 files changed, 74 insertions, 1 deletions

diff --git a/fanduct.scad b/fanduct.scad
index ba63717..2bc5623 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -126,28 +126,63 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
     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);
    }
   }
+  module dual_complex() {
+   for(my=[0,1]) mirror([0,my,0])
+    if(what=="in") {
+     sh = fanduct_w+2*fanduct_shell;
+     sv = fanduct_h+2*fanduct_shell;
+     for(mx=[0,1]) mirror([mx,0,0])
+     mirror([0,1,0]) rotate([90,0,0])
+     translate([0,0,-1])
+     linear_extrude(height=nozzles_apart/2+1+epsilon)
+     ductshape(sh=sh,sv=sv,r=fanduct_ir,what=what);
+     translate([0,nozzles_apart/2,0])
+     difference() {
+      rotate_extrude($fn=smooth_f)
+      ductshape(sh=sh,sv=sv,r=fanduct_ir,what=what);
+      mirror([0,1,0]) translate([-fanduct_ir-sh-1,0,-1])
+      cube(size=[2*(fanduct_ir+sh+1),fanduct_ir+sh+1,sv+2]);
+     }
+    }else{
+     sh = fanduct_w; sv = fanduct_h;
+     for(mx=[0,1]) mirror([mx,0,0])
+     mirror([0,1,0]) rotate([90,0,0])
+     translate([0,0,-1])
+     linear_extrude(height=nozzles_apart/2+1+epsilon)
+     ductshape(sh=sh,sv=sv,r=fanduct_ir,what=what);
+     translate([0,nozzles_apart/2,0])
+     difference() {
+      rotate_extrude($fn=smooth_f)
+      ductshape(sh=sh,sv=sv,r=fanduct_ir,what=what);
+      mirror([0,1,0]) translate([-fanduct_ir-sh-1,0,-1])
+      cube(size=[2*(fanduct_ir+sh+1),fanduct_ir+sh+1,sv+2]);
+     }
+    }
+  }
 
   if(dual) {
    if(type=="simple")
     dual_simple();
+   else if(type=="jets")
+    dual_complex();
    else dual();
   }else single();
  }
 
          //     ***bumps for easier position adjustments in line with hotend
  module marks(what) {
   if(what=="in") {
    for(y=[-1,1]) translate([0,dual?y*nozzles_apart/2:0,0])
     hull() for(z=[0,-fanduct_shell-fanduct_h/2])
      translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z])
      rotate([90,0,0]) {
       cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30);
@@ -280,48 +315,86 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
      for(my=[0,1]) mirror([0,my,0]) {
       guideline([ [-far             ,0], [0, nozzles_apart/8] ]);
       guideline([ [-far             ,inlet_w/2/4 ],
                   [-near            ,to_midduct/2] ]);
       guideline([ [-near-fanduct_w/3,  to_midduct/2       ],
                   [-near            ,nozzles_apart/2+near ] ]);
       guideline([ [0                ,nozzles_apart/2+near+fanduct_w*space_behind_nozzle/to_midduct] ]);
      }
     }
    }
   }
 
+  module dual_jets(what=what) {
+   od=fanduct_h*2/3+fanduct_shell;
+   md=fanduct_ir+fanduct_shell+fanduct_w/2;
+   jww = 2*md*sin(jet_angle/2);
+   difference() {
+    for(my=[0,1]) mirror([0,my,0])
+    translate([0,nozzles_apart/2,0])
+    for(a=[45,135]) rotate([0,0,a])
+    if(what=="in") {
+     hull() {
+      intersection() {
+       translate([md-fanduct_w/2,-jww/2,0])
+       cube(size=[fanduct_shell+fanduct_w/2,jww,od]);
+       rotate([0,0,-a]) translate([0,-nozzles_apart/2,0]) duct(what=what);
+      } // intersection
+      translate([0,0,-fanduct_elevation]) sphere(r=.5);
+     } // hull
+    }else if(what=="out") {
+     hull() {
+      intersection() {
+       translate([md-fanduct_w/2,-jww/2+fanduct_shell,fanduct_shell])
+       cube(size=[fanduct_w/2,jww-2*fanduct_shell,od-2*fanduct_shell]);
+       rotate([0,0,-a]) translate([0,-nozzles_apart/2,0]) duct(what=what);
+      } // intersection
+      translate([0,0,-fanduct_elevation]) sphere(r=.5);
+     } // hull
+    } // what=="out"
+    if(what=="in") {
+     translate([0,0,-fanduct_elevation/2-1+epsilon])
+     cube(size=[2*(fanduct_ir+2*fanduct_shell+fanduct_w+1),nozzles_apart+2*(fanduct_ir+2*fanduct_shell+fanduct_w+1),fanduct_elevation+2],center=true);
+     for(my=[0,1]) mirror([0,my,0])
+      translate([0,nozzles_apart/2,-hotend_clearance])
+      cylinder(r1=hotend_clearance*2,r2=0,h=hotend_clearance*2,$fn=4);
+    }
+   } // difference
+  }
+
   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 if(type=="jets") dual_jets(what);
    else 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])
    rotate([0,-90,0])
    children();
   }
@@ -355,25 +428,25 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
    hull() {
     placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0])
     cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,fanduct_shell]);
     translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,fanduct_shell])
     translate([0,-inlet_w/2+fanduct_shell,0])
     cube(size=[1,inlet_w-2*fanduct_shell,fanduct_h]);
    }
   }
  }
 
          //     ***DUCT TAILS!!! WOO-OO! (every day they're out there making duct tails…)
  module tails(what) {
-  if(dual) {
+  if(dual && type=="simple") {
    // XXX: not sure if it will ever be
   }else{
    if(what=="in") {
     for(mx=[0,1]) mirror([mx,0,0])
     translate([fanduct_ir+fanduct_shell+fanduct_w/2,0,fanduct_shell+fanduct_h/2])
     rotate([90,0,90])
     translate([0,0,-snapper_d/2])
     snapper(d=snapper_d,o=snapper_overlap,side=0,l=fanduct_h*3/2+fanduct_shell);
    }
   }
  }