author | Michael Krelin <hacker@klever.net> | 2016-06-11 14:08:31 (UTC) |
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committer | Michael Krelin <hacker@klever.net> | 2016-06-11 14:08:31 (UTC) |
commit | 0398dd6a4e41ec26d48ad02caffc319f34cbfcb1 (patch) (unidiff) | |
tree | 6b5c5cb97ac2ad98179ebddd5db08757994eaa29 | |
parent | 81e4c02f584b5404628cda56502d0eedbc93b8f1 (diff) | |
download | fanductory-0398dd6a4e41ec26d48ad02caffc319f34cbfcb1.zip fanductory-0398dd6a4e41ec26d48ad02caffc319f34cbfcb1.tar.gz fanductory-0398dd6a4e41ec26d48ad02caffc319f34cbfcb1.tar.bz2 |
selectable round/square duct section
-rw-r--r-- | fanduct.scad | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/fanduct.scad b/fanduct.scad index 53630a3..746f753 100644 --- a/fanduct.scad +++ b/fanduct.scad | |||
@@ -11,68 +11,81 @@ heater_clearance = max( | |||
11 | hypothenuse(11.5-4.5 +silicone_shell, 15.5 +silicone_shell)// E3D volcano | 11 | hypothenuse(11.5-4.5 +silicone_shell, 15.5 +silicone_shell)// E3D volcano |
12 | ); | 12 | ); |
13 | 13 | ||
14 | fanduct_elevation = 3; // fanduct elevation above nozzle tip | 14 | fanduct_elevation = 3; // fanduct elevation above nozzle tip |
15 | fanduct_blowtarget = -2; // what to blow at | 15 | fanduct_blowtarget = -2; // what to blow at |
16 | fanduct_h = 6; // inner height of the duct | 16 | fanduct_h = 6; // inner height of the duct |
17 | fanduct_w = 7; // inner width of the duct | 17 | fanduct_w = 7; // inner width of the duct |
18 | fanduct_shell=1.2; // shell thickness | 18 | fanduct_shell=1.2; // shell thickness |
19 | fanduct_ir = heater_clearance+5; // inner radius | 19 | fanduct_ir = heater_clearance+5; // inner radius |
20 | 20 | ||
21 | jet_angle = 60-2; // angular width of the jet | 21 | jet_angle = 60-2; // angular width of the jet |
22 | 22 | ||
23 | inlet_w = 12.5; // inlet width | 23 | inlet_w = 12.5; // inlet width |
24 | inlet_h = 17; // inlet height | 24 | inlet_h = 17; // inlet height |
25 | inlet_l = 7; // inlet length of protrusion (or depth of intrusion:)) | 25 | inlet_l = 7; // inlet length of protrusion (or depth of intrusion:)) |
26 | inlet_away = 15;// how far away inlet is | 26 | inlet_away = 15;// how far away inlet is |
27 | 27 | ||
28 | hotend_clearance = heater_clearance; | 28 | hotend_clearance = heater_clearance; |
29 | 29 | ||
30 | snapper_d = 8; snapper_overlap=0.2;// snip snap | 30 | snapper_d = 8; snapper_overlap=0.2;// snip snap |
31 | 31 | ||
32 | smooth_f = 120; | 32 | smooth_f = 120; |
33 | 33 | ||
34 | type="3jets"; // "3jets" ; // circular|3jets | 34 | type="3jets"; // "3jets" ; // circular|3jets |
35 | ductshape="square"; // square|round | ||
35 | 36 | ||
36 | 37 | ||
37 | module fanduct(type=type) { | 38 | module 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) { |
41 | if(what=="in") { | 42 | if(what=="in") { |
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) |
45 | translate([sh/2+fanduct_ir,sv/2]) | 46 | if(ductshape=="round") |
46 | scale([sh/smax,sv/smax]) | 47 | translate([sh/2+fanduct_ir,sv/2]) |
47 | circle(d=smax,$fn=4*smax); | 48 | scale([sh/smax,sv/smax]) |
49 | circle(d=smax,$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) |
52 | translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell]) | 57 | if(ductshape=="round") |
53 | scale([sh/smax,sv/smax]) | 58 | translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell]) |
54 | circle(d=smax,$fn=4*smax); | 59 | scale([sh/smax,sv/smax]) |
60 | circle(d=smax,$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,$fn=36); | ||
67 | } | ||
55 | } | 68 | } |
56 | } | 69 | } |
57 | 70 | ||
58 | // ***bumps for easier position adjustments in line with hotend | 71 | // ***bumps for easier position adjustments in line with hotend |
59 | module marks(what) { | 72 | module marks(what) { |
60 | if(what=="in") { | 73 | if(what=="in") { |
61 | for(y=[-1,1]) | 74 | for(y=[-1,1]) |
62 | hull() for(z=[0,-fanduct_shell-fanduct_h/2]) | 75 | hull() for(z=[0,-fanduct_shell-fanduct_h/2]) |
63 | translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z]) | 76 | translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z]) |
64 | rotate([90,0,0]) { | 77 | rotate([90,0,0]) { |
65 | cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30); | 78 | cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30); |
66 | for(z=[-1,1]) translate([0,0,z*fanduct_w/2]) | 79 | for(z=[-1,1]) translate([0,0,z*fanduct_w/2]) |
67 | sphere(r=fanduct_shell,$fn=30); | 80 | sphere(r=fanduct_shell,$fn=30); |
68 | } | 81 | } |
69 | } | 82 | } |
70 | } | 83 | } |
71 | 84 | ||
72 | // ***output | 85 | // ***output |
73 | module output(what,type=type) { | 86 | module output(what,type=type) { |
74 | module guideline(xyxy) { | 87 | module guideline(xyxy) { |
75 | module pin(xy) { | 88 | module pin(xy) { |
76 | translate([xy[0],xy[1],0]) | 89 | translate([xy[0],xy[1],0]) |
77 | cylinder(d=2*extrusion_width,h=2*fanduct_shell+inlet_h,$fn=6); | 90 | cylinder(d=2*extrusion_width,h=2*fanduct_shell+inlet_h,$fn=6); |
78 | } | 91 | } |
@@ -219,42 +232,42 @@ module fanduct(type=type) { | |||
219 | union() { | 232 | union() { |
220 | duct(what); | 233 | duct(what); |
221 | marks(what); | 234 | marks(what); |
222 | output(what); | 235 | output(what); |
223 | intake(what); | 236 | intake(what); |
224 | tails(what); | 237 | tails(what); |
225 | } | 238 | } |
226 | } | 239 | } |
227 | 240 | ||
228 | difference() { | 241 | difference() { |
229 | parts("in"); | 242 | parts("in"); |
230 | parts("out"); | 243 | parts("out"); |
231 | } | 244 | } |
232 | intersection() { | 245 | intersection() { |
233 | union() { | 246 | union() { |
234 | output("airguides"); | 247 | output("airguides"); |
235 | sphere(d=epsilon); | 248 | sphere(d=epsilon); |
236 | } | 249 | } |
237 | union() { | 250 | union() { |
238 | duct("in"); output("in"); intake("in"); | 251 | duct("in"); output("in"); intake("in"); |
239 | } | 252 | } |
240 | } | 253 | } |
241 | } | 254 | } |
242 | 255 | ||
243 | view="full"; // hcut|vcut|* | 256 | view="vcut"; // hcut|vcut|* |
244 | 257 | ||
245 | hinfinity=4*(fanduct_ir+fanduct_shell*2+fanduct_w+inlet_away); | 258 | hinfinity=4*(fanduct_ir+fanduct_shell*2+fanduct_w+inlet_away); |
246 | vinfinity=2*(fanduct_shell*2+fanduct_h+inlet_h); | 259 | vinfinity=2*(fanduct_shell*2+fanduct_h+inlet_h); |
247 | if(view=="hcut") { | 260 | if(view=="hcut") { |
248 | difference() { | 261 | difference() { |
249 | fanduct(); | 262 | fanduct(); |
250 | translate([-hinfinity/2,-hinfinity/2,fanduct_shell+fanduct_h/2]) | 263 | translate([-hinfinity/2,-hinfinity/2,fanduct_shell+fanduct_h/2]) |
251 | cube(size=[hinfinity,hinfinity,vinfinity]); | 264 | cube(size=[hinfinity,hinfinity,vinfinity]); |
252 | } | 265 | } |
253 | }else if(view=="vcut") { | 266 | }else if(view=="vcut") { |
254 | difference() { | 267 | difference() { |
255 | fanduct(); | 268 | fanduct(); |
256 | translate([-hinfinity/2,0,-vinfinity/2]) | 269 | translate([-hinfinity/2,0,-vinfinity/2]) |
257 | cube(size=[hinfinity,hinfinity,vinfinity]); | 270 | cube(size=[hinfinity,hinfinity,vinfinity]); |
258 | } | 271 | } |
259 | }else fanduct(); | 272 | }else fanduct(); |
260 | /* vim:set sw=1 ai: */ | 273 | /* vim:set sw=1 ai: */ |