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authorMichael Krelin <hacker@klever.net>2016-06-11 14:08:31 (UTC)
committer Michael Krelin <hacker@klever.net>2016-06-11 14:08:31 (UTC)
commit0398dd6a4e41ec26d48ad02caffc319f34cbfcb1 (patch) (unidiff)
tree6b5c5cb97ac2ad98179ebddd5db08757994eaa29
parent81e4c02f584b5404628cda56502d0eedbc93b8f1 (diff)
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selectable round/square duct section
Diffstat (more/less context) (show whitespace changes)
-rw-r--r--fanduct.scad17
1 files changed, 15 insertions, 2 deletions
diff --git a/fanduct.scad b/fanduct.scad
index 53630a3..746f753 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -32,9 +32,10 @@ snapper_d = 8; snapper_overlap=0.2; // snip snap
32smooth_f = 120; 32smooth_f = 120;
33 33
34type="3jets"; // "3jets" ; // circular|3jets 34type="3jets"; // "3jets" ; // circular|3jets
35ductshape="square"; // square|round
35 36
36 37
37module fanduct(type=type) { 38module fanduct(type=type,ductshape=ductshape) {
38 39
39 // ***duct is all around! 40 // ***duct is all around!
40 module duct(what) { 41 module duct(what) {
@@ -42,16 +43,28 @@ module fanduct(type=type) {
42 sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell; 43 sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell;
43 smax = max(sh,sv); 44 smax = max(sh,sv);
44 rotate_extrude($fn=smooth_f) 45 rotate_extrude($fn=smooth_f)
46 if(ductshape=="round")
45 translate([sh/2+fanduct_ir,sv/2]) 47 translate([sh/2+fanduct_ir,sv/2])
46 scale([sh/smax,sv/smax]) 48 scale([sh/smax,sv/smax])
47 circle(d=smax,$fn=4*smax); 49 circle(d=smax,$fn=4*smax);
50 else if(ductshape=="square")
51 translate([fanduct_ir,0])
52 square([sh,sv]);
48 }else if(what=="out") { 53 }else if(what=="out") {
49 sh = fanduct_w; sv = fanduct_h; 54 sh = fanduct_w; sv = fanduct_h;
50 smax = max(sh,sv); 55 smax = max(sh,sv);
51 rotate_extrude($fn=smooth_f) 56 rotate_extrude($fn=smooth_f)
57 if(ductshape=="round")
52 translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell]) 58 translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell])
53 scale([sh/smax,sv/smax]) 59 scale([sh/smax,sv/smax])
54 circle(d=smax,$fn=4*smax); 60 circle(d=smax,$fn=4*smax);
61 else if(ductshape=="square")
62 translate([fanduct_ir+fanduct_shell,fanduct_shell])
63 union() {
64 square([fanduct_w,fanduct_h/2]);
65 translate([fanduct_w/2,fanduct_h-fanduct_w/2])
66 rotate([0,0,90]) circle(d=fanduct_w,$fn=36);
67 }
55 } 68 }
56 } 69 }
57 70
@@ -240,7 +253,7 @@ module fanduct(type=type) {
240 } 253 }
241} 254}
242 255
243view="full"; // hcut|vcut|* 256view="vcut"; // hcut|vcut|*
244 257
245hinfinity=4*(fanduct_ir+fanduct_shell*2+fanduct_w+inlet_away); 258hinfinity=4*(fanduct_ir+fanduct_shell*2+fanduct_w+inlet_away);
246vinfinity=2*(fanduct_shell*2+fanduct_h+inlet_h); 259vinfinity=2*(fanduct_shell*2+fanduct_h+inlet_h);