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-rw-r--r--Makefile2
-rw-r--r--fanduct-3jets.scad2
-rw-r--r--fanduct-jets.scad2
-rw-r--r--fanduct.scad4
4 files changed, 5 insertions, 5 deletions
diff --git a/Makefile b/Makefile
index b72584f..c82e15a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,16 +1,16 @@
-include Makefile.local
OPENSCAD_APP?=/Applications/OpenSCAD.app
OPENSCAD_BIN?=${OPENSCAD_APP}/Contents/MacOS/OpenSCAD
OPENSCAD_FLAGS=-D draft=false
-default: fanduct-circular.stl fanduct-3jets.stl fanduct-dual.stl fanduct-dual-jets.stl
+default: fanduct-circular.stl fanduct-jets.stl fanduct-dual.stl fanduct-dual-jets.stl
clean:
rm -f *.stl
fanduct-%.stl: fanduct-%.scad fanduct.scad
%.stl: %.scad
${OPENSCAD_BIN} ${OPENSCAD_FLAGS} -o "$@" "$<"
diff --git a/fanduct-3jets.scad b/fanduct-3jets.scad
deleted file mode 100644
index cd88ab0..0000000
--- a/fanduct-3jets.scad
+++ b/dev/null
@@ -1,2 +0,0 @@
-use <fanduct.scad>;
-fanduct(type="3jets");
diff --git a/fanduct-jets.scad b/fanduct-jets.scad
new file mode 100644
index 0000000..eb8a388
--- a/dev/null
+++ b/fanduct-jets.scad
@@ -0,0 +1,2 @@
+use <fanduct.scad>;
+fanduct(type="jets");
diff --git a/fanduct.scad b/fanduct.scad
index 2bc5623..efc6a19 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -1,54 +1,54 @@
use <snapper.scad>;
extrusion_width=.5; layer_height=.2; // print parameters
epsilon=.005; // for finer cuts
-type="simple"; // circular|3jets
+type="jets"; // jets|circular|simple
ductshape="square"; // square|round
dual=true; // dual or single
nozzles_apart = 18; // distance between nozzles for dual hotend
space_behind_nozzle = 10; // space behind the nozzle where we're allowed to go
// without the fear of hitting carriage
inlet_w = 12.5; // inlet width
inlet_h = 17; // inlet height
inlet_short_l = 7; // inlet length of protrusion (or depth of intrusion:))
inlet_away = 15; // how far away inlet is
inlet_long_l = inlet_short_l+inlet_h;
function hypothenuse(a,b) = sqrt(pow(a,2)+pow(b,2));
silicone_shell = 2;
heater_clearance = dual
? max(20,15.5) - 4.5 + silicone_shell
: max(
hypothenuse(16/2 +silicone_shell, 20-4.5 +silicone_shell), // E3D v6
hypothenuse(11.5-4.5 +silicone_shell, 15.5 +silicone_shell) // E3D volcano
);
fanduct_elevation = 3; // fanduct elevation above nozzle tip
fanduct_blowtarget = -2; // what to blow at
fanduct_h = 6; // inner height of the duct
fanduct_w = 7; // inner width of the duct
fanduct_shell=1.2; // shell thickness
fanduct_ir = heater_clearance+5; // inner radius
jet_angle = 60-2; // angular width of the jet
hotend_clearance = heater_clearance;
snapper_d = 8; snapper_overlap=0.2; // snip snap
draft=true;
smooth_f = draft? 30 : 120;
to_midduct = fanduct_ir+fanduct_shell+fanduct_w/2;
dual_spots = [ [+space_behind_nozzle, -(to_midduct+nozzles_apart/2)],
[- to_midduct, -(to_midduct+nozzles_apart/2)],
[- to_midduct, 0] ];
module fanduct(type=type,ductshape=ductshape,dual=dual) {
// *** duct is all around!
module duct(what) {
@@ -343,97 +343,97 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
} // 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);
+ else if(type=="jets") 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();
}
if(what=="in") {
placeit() translate([0,-inlet_w/2,0]) {
difference() {
cube(size=[inlet_h,inlet_w,inlet_long_l+fanduct_shell]); translate([inlet_h+fanduct_shell,0,inlet_long_l+fanduct_shell])
rotate([-90,0,0])
translate([0,0,-1])
cylinder(r=inlet_h,h=inlet_w+2*fanduct_shell+2,$fn=inlet_h*4);
}
// supports
for(i=[-1,0,1])
translate([-fanduct_shell,
(i+1)*(inlet_w-extrusion_width)/2,
-inlet_away-fanduct_w/2])
cube(size=[fanduct_shell+1,
extrusion_width,
inlet_long_l+fanduct_shell+inlet_away+fanduct_w/2]);
}
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/2,0,0])
translate([0,-inlet_w/2-fanduct_shell/2,0])
cube(size=[1,inlet_w+fanduct_shell,fanduct_shell*2+fanduct_h]);
}
}else if(what=="out") {
placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0])
cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,inlet_long_l+fanduct_shell+1]);
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) {