-rw-r--r-- | fanduct.scad | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/fanduct.scad b/fanduct.scad index 75a3bb1..7a9e205 100644 --- a/fanduct.scad +++ b/fanduct.scad | |||
@@ -13,27 +13,28 @@ heater_clearance = max( | |||
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_short_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 | inlet_long_l = inlet_short_l+inlet_h; | ||
28 | hotend_clearance = heater_clearance; | 29 | hotend_clearance = heater_clearance; |
29 | 30 | ||
30 | snapper_d = 8; snapper_overlap=0.2;// snip snap | 31 | snapper_d = 8; snapper_overlap=0.2;// snip snap |
31 | 32 | ||
32 | smooth_f = 120; | 33 | smooth_f = 120; |
33 | 34 | ||
34 | type="3jets"; // "3jets" ; // circular|3jets | 35 | type="3jets"; // "3jets" ; // circular|3jets |
35 | ductshape="square"; // square|round | 36 | ductshape="square"; // square|round |
36 | 37 | ||
37 | 38 | ||
38 | module fanduct(type=type,ductshape=ductshape) { | 39 | module fanduct(type=type,ductshape=ductshape) { |
39 | 40 | ||
@@ -179,44 +180,50 @@ module fanduct(type=type,ductshape=ductshape) { | |||
179 | else if(type=="3jets") jets(what); | 180 | else if(type=="3jets") jets(what); |
180 | } | 181 | } |
181 | 182 | ||
182 | // ***air intake | 183 | // ***air intake |
183 | module intake(what) { | 184 | module intake(what) { |
184 | module placeit() { | 185 | module placeit() { |
185 | translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell]) | 186 | translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell]) |
186 | rotate([0,-90,0]) | 187 | rotate([0,-90,0]) |
187 | children(); | 188 | children(); |
188 | } | 189 | } |
189 | if(what=="in") { | 190 | if(what=="in") { |
190 | placeit() translate([0,-inlet_w/2,0]) { | 191 | placeit() translate([0,-inlet_w/2,0]) { |
191 | cube(size=[inlet_h,inlet_w,inlet_l+fanduct_shell]); | 192 | difference() { |
193 | cube(size=[inlet_h,inlet_w,inlet_long_l+fanduct_shell]); | ||
194 | translate([inlet_h+fanduct_shell,0,inlet_long_l+fanduct_shell]) | ||
195 | rotate([-90,0,0]) | ||
196 | translate([0,0,-1]) | ||
197 | cylinder(r=inlet_h,h=inlet_w+2*fanduct_shell+2,$fn=inlet_h*4); | ||
198 | } | ||
192 | // supports | 199 | // supports |
193 | for(i=[-1,0,1]) | 200 | for(i=[-1,0,1]) |
194 | translate([-fanduct_shell, | 201 | translate([-fanduct_shell, |
195 | (i+1)*(inlet_w-extrusion_width)/2, | 202 | (i+1)*(inlet_w-extrusion_width)/2, |
196 | -inlet_away-fanduct_w/2]) | 203 | -inlet_away-fanduct_w/2]) |
197 | cube(size=[fanduct_shell, | 204 | cube(size=[fanduct_shell, |
198 | extrusion_width, | 205 | extrusion_width, |
199 | inlet_l+fanduct_shell+inlet_away+fanduct_w/2]); | 206 | inlet_long_l+fanduct_shell+inlet_away+fanduct_w/2]); |
200 | } | 207 | } |
201 | hull() { | 208 | hull() { |
202 | placeit() translate([-fanduct_shell,-inlet_w/2-fanduct_shell,0]) | 209 | placeit() translate([-fanduct_shell,-inlet_w/2-fanduct_shell,0]) |
203 | cube(size=[inlet_h+2*fanduct_shell,inlet_w+2*fanduct_shell,fanduct_shell]); | 210 | cube(size=[inlet_h+2*fanduct_shell,inlet_w+2*fanduct_shell,fanduct_shell]); |
204 | translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,0]) | 211 | translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,0]) |
205 | translate([0,-inlet_w/2-fanduct_shell/2,0]) | 212 | translate([0,-inlet_w/2-fanduct_shell/2,0]) |
206 | cube(size=[1,inlet_w+fanduct_shell,fanduct_shell*2+fanduct_h]); | 213 | cube(size=[1,inlet_w+fanduct_shell,fanduct_shell*2+fanduct_h]); |
207 | } | 214 | } |
208 | }else if(what=="out") { | 215 | }else if(what=="out") { |
209 | placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) | 216 | placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) |
210 | cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,inlet_l+fanduct_shell+1]); | 217 | cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,inlet_long_l+fanduct_shell+1]); |
211 | hull() { | 218 | hull() { |
212 | placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) | 219 | placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) |
213 | cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,fanduct_shell]); | 220 | cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,fanduct_shell]); |
214 | translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,fanduct_shell]) | 221 | translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,fanduct_shell]) |
215 | translate([0,-inlet_w/2+fanduct_shell,0]) | 222 | translate([0,-inlet_w/2+fanduct_shell,0]) |
216 | cube(size=[1,inlet_w-2*fanduct_shell,fanduct_h]); | 223 | cube(size=[1,inlet_w-2*fanduct_shell,fanduct_h]); |
217 | } | 224 | } |
218 | } | 225 | } |
219 | } | 226 | } |
220 | 227 | ||
221 | // ***DUCT TAILS!!! WOO-OO! (every day they're out there making duct tails…) | 228 | // ***DUCT TAILS!!! WOO-OO! (every day they're out there making duct tails…) |
222 | module tails(what) { | 229 | module tails(what) { |
@@ -245,25 +252,25 @@ module fanduct(type=type,ductshape=ductshape) { | |||
245 | } | 252 | } |
246 | intersection() { | 253 | intersection() { |
247 | union() { | 254 | union() { |
248 | output("airguides"); | 255 | output("airguides"); |
249 | sphere(d=epsilon); | 256 | sphere(d=epsilon); |
250 | } | 257 | } |
251 | union() { | 258 | union() { |
252 | duct("in"); output("in"); intake("in"); | 259 | duct("in"); output("in"); intake("in"); |
253 | } | 260 | } |
254 | } | 261 | } |
255 | } | 262 | } |
256 | 263 | ||
257 | view="vcut"; // hcut|vcut|* | 264 | view="*"; // hcut|vcut|* |
258 | 265 | ||
259 | hinfinity=4*(fanduct_ir+fanduct_shell*2+fanduct_w+inlet_away); | 266 | hinfinity=4*(fanduct_ir+fanduct_shell*2+fanduct_w+inlet_away); |
260 | vinfinity=2*(fanduct_shell*2+fanduct_h+inlet_h); | 267 | vinfinity=2*(fanduct_shell*2+fanduct_h+inlet_h); |
261 | if(view=="hcut") { | 268 | if(view=="hcut") { |
262 | difference() { | 269 | difference() { |
263 | fanduct(); | 270 | fanduct(); |
264 | translate([-hinfinity/2,-hinfinity/2,fanduct_shell+fanduct_h/2]) | 271 | translate([-hinfinity/2,-hinfinity/2,fanduct_shell+fanduct_h/2]) |
265 | cube(size=[hinfinity,hinfinity,vinfinity]); | 272 | cube(size=[hinfinity,hinfinity,vinfinity]); |
266 | } | 273 | } |
267 | }else if(view=="vcut") { | 274 | }else if(view=="vcut") { |
268 | difference() { | 275 | difference() { |
269 | fanduct(); | 276 | fanduct(); |