summaryrefslogtreecommitdiffabout
authorMichael Krelin <hacker@klever.net>2016-06-13 14:10:26 (UTC)
committer Michael Krelin <hacker@klever.net>2016-06-13 14:10:26 (UTC)
commit96c68b7fc20735d0cacb027827282f070403d885 (patch) (side-by-side diff)
treefd4adc6046f2b8b3d2e01b9ea415fbb9f96b3726
parent2d09f1c09a64adab3a756e5d7108a2138682a2f3 (diff)
downloadfanductory-96c68b7fc20735d0cacb027827282f070403d885.zip
fanductory-96c68b7fc20735d0cacb027827282f070403d885.tar.gz
fanductory-96c68b7fc20735d0cacb027827282f070403d885.tar.bz2
dualism: the duct
Diffstat (more/less context) (show whitespace changes)
-rw-r--r--fanduct.scad42
1 files changed, 39 insertions, 3 deletions
diff --git a/fanduct.scad b/fanduct.scad
index 3e2a15e..b9689c9 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -25,24 +25,33 @@ 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;
hotend_clearance = heater_clearance;
+nozzles_apart = 18; // distance between nozzles for dual hotend
+space_behind_nozzle = 15; // space behind the nozzle where we're allowed to go
+ // without the fear of hitting carriage
+
snapper_d = 8; snapper_overlap=0.2; // snip snap
smooth_f = 120;
-type="3jets"; // "3jets" ; // circular|3jets
+type="circular"; // circular|3jets
ductshape="square"; // square|round
+dual=true; // dual or single
+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) {
-
+module fanduct(type=type,ductshape=ductshape,dual=dual) {
// *** duct is all around!
module duct(what) {
+ module single() {
if(what=="in") {
sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell;
smax = max(sh,sv);
rotate_extrude($fn=smooth_f)
if(ductshape=="round")
translate([sh/2+fanduct_ir,sv/2])
@@ -66,12 +75,39 @@ module fanduct(type=type,ductshape=ductshape) {
translate([sh/2,sv/2])
scale([sh/smax,sv/smax])
circle(d=smax,$fn=36);
}
}
}
+ module dual() {
+ module hulls(spots=dual_spots) {
+ for(my=[0,1]) mirror([0,my,0]) for(pn=[0:1:len(spots)-2]) hull() {
+ for(p=[spots[pn],spots[pn+1]]) translate(p) children();
+ }
+ }
+ if(what=="in") {
+ hulls() cylinder(d=fanduct_w+2*fanduct_shell,h=fanduct_h+2*fanduct_shell);
+ }else if(what=="out") {
+ sh = fanduct_w; sv = fanduct_h;
+ smax = max(sh,sv);
+ translate([0,0,fanduct_shell]) hulls() {
+ cylinder(d=fanduct_w,h=fanduct_h/2);
+ translate([0,0,fanduct_h/2])
+ scale([sh/smax,sh/smax,sv/smax])
+ intersection() {
+ sphere(d=smax,$fn=36);
+ translate([0,0,-1])
+ cylinder(d=smax+2,h=smax+2,$fn=36);
+ }
+ }
+ }
+ }
+
+ if(dual) dual();
+ else single();
+ }
// *** bumps for easier position adjustments in line with hotend
module marks(what) {
if(what=="in") {
for(y=[-1,1])
hull() for(z=[0,-fanduct_shell-fanduct_h/2])