-rw-r--r-- | fanduct.scad | 66 |
1 files changed, 61 insertions, 5 deletions
diff --git a/fanduct.scad b/fanduct.scad index 52aee0e..a17b261 100644 --- a/fanduct.scad +++ b/fanduct.scad | |||
@@ -1,54 +1,54 @@ | |||
1 | use <snapper.scad>; | 1 | use <snapper.scad>; |
2 | extrusion_width=.5; layer_height=.2; // print parameters | 2 | extrusion_width=.5; layer_height=.2; // print parameters |
3 | 3 | ||
4 | epsilon=.005; // for finer cuts | 4 | epsilon=.005; // for finer cuts |
5 | 5 | ||
6 | type="circular"; // circular|3jets | 6 | type="simple"; // circular|3jets |
7 | ductshape="square"; // square|round | 7 | ductshape="square"; // square|round |
8 | dual=true; // dual or single | 8 | dual=true; // dual or single |
9 | 9 | ||
10 | nozzles_apart = 18; // distance between nozzles for dual hotend | 10 | nozzles_apart = 18; // distance between nozzles for dual hotend |
11 | space_behind_nozzle = 10;// space behind the nozzle where we're allowed to go | 11 | space_behind_nozzle = 10;// space behind the nozzle where we're allowed to go |
12 | // without the fear of hitting carriage | 12 | // without the fear of hitting carriage |
13 | 13 | ||
14 | inlet_w = 12.5; // inlet width | 14 | inlet_w = 12.5; // inlet width |
15 | inlet_h = 17; // inlet height | 15 | inlet_h = 17; // inlet height |
16 | inlet_short_l = 7;// inlet length of protrusion (or depth of intrusion:)) | 16 | inlet_short_l = 7;// inlet length of protrusion (or depth of intrusion:)) |
17 | inlet_away = 15;// how far away inlet is | 17 | inlet_away = 15;// how far away inlet is |
18 | 18 | ||
19 | inlet_long_l = inlet_short_l+inlet_h; | 19 | inlet_long_l = inlet_short_l+inlet_h; |
20 | function hypothenuse(a,b) = sqrt(pow(a,2)+pow(b,2)); | 20 | function hypothenuse(a,b) = sqrt(pow(a,2)+pow(b,2)); |
21 | 21 | ||
22 | silicone_shell = 2; | 22 | silicone_shell = 2; |
23 | heater_clearance = dual | 23 | heater_clearance = dual |
24 | ? max(20,15.5) - 4.5 + silicone_shell | 24 | ? max(20,15.5) - 4.5 + silicone_shell |
25 | : max( | 25 | : max( |
26 | hypothenuse(16/2 +silicone_shell, 20-4.5 +silicone_shell),// E3D v6 | 26 | hypothenuse(16/2 +silicone_shell, 20-4.5 +silicone_shell),// E3D v6 |
27 | hypothenuse(11.5-4.5 +silicone_shell, 15.5 +silicone_shell)// E3D volcano | 27 | hypothenuse(11.5-4.5 +silicone_shell, 15.5 +silicone_shell)// E3D volcano |
28 | ); | 28 | ); |
29 | 29 | ||
30 | fanduct_elevation = 3; // fanduct elevation above nozzle tip | 30 | fanduct_elevation = 3; // fanduct elevation above nozzle tip |
31 | fanduct_blowtarget = -2; // what to blow at | 31 | fanduct_blowtarget = -2; // what to blow at |
32 | fanduct_h = 6; // inner height of the duct | 32 | fanduct_h = 6; // inner height of the duct |
33 | fanduct_w = 7; // inner width of the duct | 33 | fanduct_w = 7; // inner width of the duct |
34 | fanduct_shell=1.2; // shell thickness | 34 | fanduct_shell=1.2; // shell thickness |
35 | fanduct_ir = heater_clearance+5; // inner radius | 35 | fanduct_ir = heater_clearance+5; // inner radius |
36 | 36 | ||
37 | jet_angle = 60-2; // angular width of the jet | 37 | jet_angle = 60-2; // angular width of the jet |
38 | 38 | ||
39 | hotend_clearance = heater_clearance; | 39 | hotend_clearance = heater_clearance; |
40 | 40 | ||
41 | snapper_d = 8; snapper_overlap=0.2;// snip snap | 41 | snapper_d = 8; snapper_overlap=0.2;// snip snap |
42 | 42 | ||
43 | draft=true; | 43 | draft=true; |
44 | smooth_f = draft? 30 : 120; | 44 | smooth_f = draft? 30 : 120; |
45 | 45 | ||
46 | to_midduct = fanduct_ir+fanduct_shell+fanduct_w/2; | 46 | to_midduct = fanduct_ir+fanduct_shell+fanduct_w/2; |
47 | dual_spots = [ [+space_behind_nozzle, -(to_midduct+nozzles_apart/2)], | 47 | dual_spots = [ [+space_behind_nozzle, -(to_midduct+nozzles_apart/2)], |
48 | [- to_midduct, -(to_midduct+nozzles_apart/2)], | 48 | [- to_midduct, -(to_midduct+nozzles_apart/2)], |
49 | [- to_midduct, 0] ]; | 49 | [- to_midduct, 0] ]; |
50 | 50 | ||
51 | module fanduct(type=type,ductshape=ductshape,dual=dual) { | 51 | module fanduct(type=type,ductshape=ductshape,dual=dual) { |
52 | // ***duct is all around! | 52 | // ***duct is all around! |
53 | module duct(what) { | 53 | module duct(what) { |
54 | module single() { | 54 | module single() { |
@@ -59,99 +59,131 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) { | |||
59 | if(ductshape=="round") | 59 | if(ductshape=="round") |
60 | translate([sh/2+fanduct_ir,sv/2]) | 60 | translate([sh/2+fanduct_ir,sv/2]) |
61 | scale([sh/smax,sv/smax]) | 61 | scale([sh/smax,sv/smax]) |
62 | circle(d=smax,$fn=4*smax); | 62 | circle(d=smax,$fn=4*smax); |
63 | else if(ductshape=="square") | 63 | else if(ductshape=="square") |
64 | translate([fanduct_ir,0]) | 64 | translate([fanduct_ir,0]) |
65 | square([sh,sv]); | 65 | square([sh,sv]); |
66 | }else if(what=="out") { | 66 | }else if(what=="out") { |
67 | sh = fanduct_w; sv = fanduct_h; | 67 | sh = fanduct_w; sv = fanduct_h; |
68 | smax = max(sh,sv); | 68 | smax = max(sh,sv); |
69 | rotate_extrude($fn=smooth_f) | 69 | rotate_extrude($fn=smooth_f) |
70 | if(ductshape=="round") | 70 | if(ductshape=="round") |
71 | translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell]) | 71 | translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell]) |
72 | scale([sh/smax,sv/smax]) | 72 | scale([sh/smax,sv/smax]) |
73 | circle(d=smax,$fn=4*smax); | 73 | circle(d=smax,$fn=4*smax); |
74 | else if(ductshape=="square") | 74 | else if(ductshape=="square") |
75 | translate([fanduct_ir+fanduct_shell,fanduct_shell]) | 75 | translate([fanduct_ir+fanduct_shell,fanduct_shell]) |
76 | union() { | 76 | union() { |
77 | square([sh,sv/2]); | 77 | square([sh,sv/2]); |
78 | translate([sh/2,sv/2]) | 78 | translate([sh/2,sv/2]) |
79 | scale([sh/smax,sv/smax]) | 79 | scale([sh/smax,sv/smax]) |
80 | circle(d=smax,$fn=36); | 80 | circle(d=smax,$fn=36); |
81 | } | 81 | } |
82 | } | 82 | } |
83 | } | 83 | } |
84 | module dual() { | 84 | module dual() { |
85 | module hulls(spots=dual_spots) { | 85 | module hulls(spots=dual_spots) { |
86 | for(my=[0,1]) mirror([0,my,0]) for(pn=[0:1:len(spots)-2]) hull() { | 86 | for(my=[0,1]) mirror([0,my,0]) for(pn=[0:1:len(spots)-2]) hull() { |
87 | for(p=[spots[pn],spots[pn+1]]) translate(p) children(); | 87 | for(p=[spots[pn],spots[pn+1]]) translate(p) children(); |
88 | } | 88 | } |
89 | } | 89 | } |
90 | if(what=="in") { | 90 | if(what=="in") { |
91 | hulls() cylinder(d=fanduct_w+2*fanduct_shell,h=fanduct_h+2*fanduct_shell); | 91 | hulls() cylinder(d=fanduct_w+2*fanduct_shell,h=fanduct_h+2*fanduct_shell); |
92 | }else if(what=="out") { | 92 | }else if(what=="out") { |
93 | sh = fanduct_w; sv = fanduct_h; | 93 | sh = fanduct_w; sv = fanduct_h; |
94 | smax = max(sh,sv); | 94 | smax = max(sh,sv); |
95 | translate([0,0,fanduct_shell]) hulls() { | 95 | translate([0,0,fanduct_shell]) hulls() { |
96 | cylinder(d=fanduct_w,h=fanduct_h/2); | 96 | cylinder(d=fanduct_w,h=fanduct_h/2); |
97 | translate([0,0,fanduct_h/2]) | 97 | translate([0,0,fanduct_h/2]) |
98 | scale([sh/smax,sh/smax,sv/smax]) | 98 | scale([sh/smax,sh/smax,sv/smax]) |
99 | intersection() { | 99 | intersection() { |
100 | sphere(d=smax,$fn=36); | 100 | sphere(d=smax,$fn=36); |
101 | translate([0,0,-1]) | 101 | translate([0,0,-1]) |
102 | cylinder(d=smax+2,h=smax+2,$fn=36); | 102 | cylinder(d=smax+2,h=smax+2,$fn=36); |
103 | } | 103 | } |
104 | } | 104 | } |
105 | } | 105 | } |
106 | } | 106 | } |
107 | module dual_simple() { | ||
108 | for(my=[0,1]) mirror([0,my,0]) | ||
109 | if(what=="in") { | ||
110 | sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell; | ||
111 | translate([0,nozzles_apart/2,0]) | ||
112 | intersection() { | ||
113 | rotate_extrude($fn=smooth_f) | ||
114 | translate([fanduct_ir,0]) square([sh,sv]); | ||
115 | translate([-fanduct_ir-sh-1,0,-1]) | ||
116 | cube(size=[fanduct_ir+sh+2,fanduct_ir+sh+2,sv+2]); | ||
117 | } | ||
118 | translate([-fanduct_ir-sh,-epsilon,0]) | ||
119 | cube(size=[sh,nozzles_apart/2+2*epsilon,sv]); | ||
120 | translate([0,sh/2+fanduct_ir+nozzles_apart/2,0]) cylinder(d=sh,h=sv,$fn=36); | ||
121 | }else if(what=="out") { | ||
122 | sh = fanduct_w; sv = fanduct_h; | ||
123 | translate([0,nozzles_apart/2,fanduct_shell]) | ||
124 | intersection() { | ||
125 | rotate_extrude($fn=smooth_f) | ||
126 | translate([fanduct_ir+fanduct_shell,0]) square([sh,sv]); | ||
127 | translate([-fanduct_ir-2*fanduct_shell-sh-1,-1,0]) | ||
128 | cube(size=[fanduct_ir+2*fanduct_shell+sh+2,fanduct_ir+2*fanduct_shell+sh+2,sv]); | ||
129 | } | ||
130 | translate([-fanduct_ir-fanduct_shell-sh,-epsilon,fanduct_shell]) | ||
131 | cube(size=[sh,nozzles_apart/2+2*epsilon,sv]); | ||
132 | translate([0,sh/2+fanduct_shell+fanduct_ir+nozzles_apart/2,fanduct_shell]) | ||
133 | cylinder(d=sh,h=sv,$fn=36); | ||
134 | } | ||
135 | } | ||
107 | 136 | ||
108 | if(dual) dual(); | 137 | if(dual) { |
109 | else single(); | 138 | if(type=="simple") |
139 | dual_simple(); | ||
140 | else dual(); | ||
141 | }else single(); | ||
110 | } | 142 | } |
111 | 143 | ||
112 | // ***bumps for easier position adjustments in line with hotend | 144 | // ***bumps for easier position adjustments in line with hotend |
113 | module marks(what) { | 145 | module marks(what) { |
114 | if(what=="in") { | 146 | if(what=="in") { |
115 | for(y=[-1,1]) translate([0,dual?y*nozzles_apart/2:0,0]) | 147 | for(y=[-1,1]) translate([0,dual?y*nozzles_apart/2:0,0]) |
116 | hull() for(z=[0,-fanduct_shell-fanduct_h/2]) | 148 | hull() for(z=[0,-fanduct_shell-fanduct_h/2]) |
117 | translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z]) | 149 | translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z]) |
118 | rotate([90,0,0]) { | 150 | rotate([90,0,0]) { |
119 | cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30); | 151 | cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30); |
120 | for(z=[-1,1]) translate([0,0,z*fanduct_w/2]) | 152 | for(z=[-1,1]) translate([0,0,z*fanduct_w/2]) |
121 | sphere(r=fanduct_shell,$fn=30); | 153 | sphere(r=fanduct_shell,$fn=30); |
122 | } | 154 | } |
123 | } | 155 | } |
124 | } | 156 | } |
125 | 157 | ||
126 | // ***output | 158 | // ***output |
127 | module output(what,type=type) { | 159 | module output(what,type=type) { |
128 | module guideline(xyxy) { | 160 | module guideline(xyxy) { |
129 | module pin(xy) { | 161 | module pin(xy) { |
130 | translate([xy[0],xy[1],0]) | 162 | translate([xy[0],xy[1],0]) |
131 | cylinder(d=2*extrusion_width,h=2*fanduct_shell+inlet_h,$fn=6); | 163 | cylinder(d=2*extrusion_width,h=2*fanduct_shell+inlet_h,$fn=6); |
132 | } | 164 | } |
133 | xyxyxy=concat(xyxy,[[0,dual?nozzles_apart/2:0]]); | 165 | xyxyxy=concat(xyxy,[[0,dual?nozzles_apart/2:0]]); |
134 | for(i=[0:1:len(xyxyxy)-2]) | 166 | for(i=[0:1:len(xyxyxy)-2]) |
135 | hull() for(j=[i,i+1]) pin(xyxyxy[j]); | 167 | hull() for(j=[i,i+1]) pin(xyxyxy[j]); |
136 | } | 168 | } |
137 | 169 | ||
138 | module circus(what) { | 170 | module circus(what) { |
139 | if(what=="in") { | 171 | if(what=="in") { |
140 | difference() { | 172 | difference() { |
141 | rotate_extrude($fn=smooth_f) | 173 | rotate_extrude($fn=smooth_f) |
142 | polygon([ | 174 | polygon([ |
143 | [0,-fanduct_elevation+fanduct_blowtarget+epsilon], | 175 | [0,-fanduct_elevation+fanduct_blowtarget+epsilon], |
144 | [fanduct_ir+fanduct_shell,fanduct_shell+fanduct_h/2], | 176 | [fanduct_ir+fanduct_shell,fanduct_shell+fanduct_h/2], |
145 | [fanduct_ir+fanduct_shell+fanduct_w/2,0], | 177 | [fanduct_ir+fanduct_shell+fanduct_w/2,0], |
146 | [0,-fanduct_elevation+fanduct_blowtarget-epsilon]]); | 178 | [0,-fanduct_elevation+fanduct_blowtarget-epsilon]]); |
147 | translate([0,0,-1]) | 179 | translate([0,0,-1]) |
148 | cylinder(r=hotend_clearance,h=fanduct_h+2*fanduct_shell+2,$fn=smooth_f); | 180 | cylinder(r=hotend_clearance,h=fanduct_h+2*fanduct_shell+2,$fn=smooth_f); |
149 | mirror([0,0,1]) | 181 | mirror([0,0,1]) |
150 | translate([0,0,-epsilon]) | 182 | translate([0,0,-epsilon]) |
151 | cylinder(r=fanduct_ir+2*fanduct_shell+fanduct_w+1,h=fanduct_elevation+.1+2); | 183 | cylinder(r=fanduct_ir+2*fanduct_shell+fanduct_w+1,h=fanduct_elevation+.1+2); |
152 | } | 184 | } |
153 | }else if(what=="out") { | 185 | }else if(what=="out") { |
154 | rotate_extrude($fn=smooth_f) | 186 | rotate_extrude($fn=smooth_f) |
155 | polygon([ | 187 | polygon([ |
156 | [0,-fanduct_elevation+fanduct_blowtarget+epsilon], | 188 | [0,-fanduct_elevation+fanduct_blowtarget+epsilon], |
157 | [fanduct_ir+fanduct_shell+1,fanduct_h/2], | 189 | [fanduct_ir+fanduct_shell+1,fanduct_h/2], |
@@ -210,98 +242,122 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) { | |||
210 | cylinder(r=fanduct_ir+fanduct_shell*2+fanduct_w+1,h=fanduct_elevation+2); | 242 | cylinder(r=fanduct_ir+fanduct_shell*2+fanduct_w+1,h=fanduct_elevation+2); |
211 | translate([0,0,-hotend_clearance]) | 243 | translate([0,0,-hotend_clearance]) |
212 | rotate([0,0,30]) | 244 | rotate([0,0,30]) |
213 | cylinder(r1=hotend_clearance*2,r2=0,h=hotend_clearance*2,$fn=6); | 245 | cylinder(r1=hotend_clearance*2,r2=0,h=hotend_clearance*2,$fn=6); |
214 | } | 246 | } |
215 | } | 247 | } |
216 | } | 248 | } |
217 | 249 | ||
218 | module dual(what=what) { | 250 | module dual(what=what) { |
219 | module hulls(spots=dual_spots) { | 251 | module hulls(spots=dual_spots) { |
220 | for(my=[0,1]) mirror([0,my,0]) for(pn=[0:1:len(spots)-2]) hull() { | 252 | for(my=[0,1]) mirror([0,my,0]) for(pn=[0:1:len(spots)-2]) hull() { |
221 | for(p=[spots[pn],spots[pn+1]]) translate(p) children(0); | 253 | for(p=[spots[pn],spots[pn+1]]) translate(p) children(0); |
222 | children([1:$children-1]); | 254 | children([1:$children-1]); |
223 | } | 255 | } |
224 | } | 256 | } |
225 | if(what=="in") { | 257 | if(what=="in") { |
226 | cfn= 4; // clearance cutout $fn | 258 | cfn= 4; // clearance cutout $fn |
227 | difference() { | 259 | difference() { |
228 | hulls() { | 260 | hulls() { |
229 | cylinder(d=fanduct_w+2*fanduct_shell,h=2*fanduct_shell+fanduct_h/2); | 261 | cylinder(d=fanduct_w+2*fanduct_shell,h=2*fanduct_shell+fanduct_h/2); |
230 | translate([0,-nozzles_apart/2,-fanduct_elevation-fanduct_blowtarget]) sphere(d=.1); | 262 | translate([0,-nozzles_apart/2,-fanduct_elevation-fanduct_blowtarget]) sphere(d=.1); |
231 | } | 263 | } |
232 | translate([0,0,epsilon]) hull() for(my=[0:1]) mirror([0,my,0]) for(s=dual_spots) translate(s) | 264 | translate([0,0,epsilon]) hull() for(my=[0:1]) mirror([0,my,0]) for(s=dual_spots) translate(s) |
233 | mirror([0,0,1]) cylinder(d=fanduct_w+2*fanduct_shell+2,h=fanduct_elevation-fanduct_blowtarget+1); | 265 | mirror([0,0,1]) cylinder(d=fanduct_w+2*fanduct_shell+2,h=fanduct_elevation-fanduct_blowtarget+1); |
234 | for(s=[-1,1]) translate([0,s*nozzles_apart/2,-1]) | 266 | for(s=[-1,1]) translate([0,s*nozzles_apart/2,-1]) |
235 | rotate([0,0,180/cfn]) cylinder(r=hotend_clearance/cos(180/cfn),h=fanduct_h+2*fanduct_shell+2,$fn=cfn); | 267 | rotate([0,0,180/cfn]) cylinder(r=hotend_clearance/cos(180/cfn),h=fanduct_h+2*fanduct_shell+2,$fn=cfn); |
236 | } | 268 | } |
237 | }else if(what=="out") { | 269 | }else if(what=="out") { |
238 | hulls() { | 270 | hulls() { |
239 | translate([0,0,fanduct_shell]) cylinder(d=fanduct_w,h=fanduct_h/2-fanduct_shell/2); | 271 | translate([0,0,fanduct_shell]) cylinder(d=fanduct_w,h=fanduct_h/2-fanduct_shell/2); |
240 | translate([0,-nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget]) sphere(d=.1); | 272 | translate([0,-nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget]) sphere(d=.1); |
241 | } | 273 | } |
242 | }else if(what=="airguides") { | 274 | }else if(what=="airguides") { |
243 | far = fanduct_ir+fanduct_shell+fanduct_w; | 275 | far = fanduct_ir+fanduct_shell+fanduct_w; |
244 | near = fanduct_ir; | 276 | near = fanduct_ir; |
245 | union() { | 277 | union() { |
246 | for(my=[0,1]) mirror([0,my,0]) { | 278 | for(my=[0,1]) mirror([0,my,0]) { |
247 | guideline([ [-far ,0], [0, nozzles_apart/8] ]); | 279 | guideline([ [-far ,0], [0, nozzles_apart/8] ]); |
248 | guideline([ [-far ,inlet_w/2/4 ], | 280 | guideline([ [-far ,inlet_w/2/4 ], |
249 | [-near ,to_midduct/2] ]); | 281 | [-near ,to_midduct/2] ]); |
250 | guideline([ [-near-fanduct_w/3, to_midduct/2 ], | 282 | guideline([ [-near-fanduct_w/3, to_midduct/2 ], |
251 | [-near ,nozzles_apart/2+near ] ]); | 283 | [-near ,nozzles_apart/2+near ] ]); |
252 | guideline([ [0 ,nozzles_apart/2+near+fanduct_w*space_behind_nozzle/to_midduct] ]); | 284 | guideline([ [0 ,nozzles_apart/2+near+fanduct_w*space_behind_nozzle/to_midduct] ]); |
253 | } | 285 | } |
254 | } | 286 | } |
255 | } | 287 | } |
256 | } | 288 | } |
257 | 289 | ||
258 | if(dual) dual(what); | 290 | module dual_simple(what=what) { |
259 | else if(type=="circular") circus(what); | 291 | for(my=[0:1]) mirror([0,my,0]) if(what=="in") { |
292 | difference() { | ||
293 | hull() { | ||
294 | translate([0,nozzles_apart/2+fanduct_ir+fanduct_shell+fanduct_w/2,0]) | ||
295 | cylinder(d=fanduct_w+2*fanduct_shell,h=fanduct_h*2/3+2*fanduct_shell); | ||
296 | translate([0,nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget]) | ||
297 | rotate([0,90,0]) cylinder(r=.5,h=fanduct_w*2,center=true); | ||
298 | } | ||
299 | rr = 2*(fanduct_ir+fanduct_shell*2+fanduct_w+2); | ||
300 | translate([-rr/2,0,0]) mirror([0,0,1]) cube(size=[rr,rr,rr]); | ||
301 | } | ||
302 | }else if(what=="out") { | ||
303 | hull() { | ||
304 | translate([0,nozzles_apart/2+fanduct_ir+fanduct_shell+fanduct_w/2,fanduct_shell]) | ||
305 | cylinder(d=fanduct_w,h=fanduct_h*2/3); | ||
306 | translate([0,nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget]) | ||
307 | rotate([0,90,0]) cylinder(d=.5,h=fanduct_w*2,center=true); | ||
308 | } | ||
309 | } | ||
310 | } | ||
311 | |||
312 | if(dual) { | ||
313 | if(type=="simple") dual_simple(what); | ||
314 | else dual(what); | ||
315 | }else if(type=="circular") circus(what); | ||
260 | else if(type=="3jets") jets(what); | 316 | else if(type=="3jets") jets(what); |
261 | } | 317 | } |
262 | 318 | ||
263 | // ***air intake | 319 | // ***air intake |
264 | module intake(what) { | 320 | module intake(what) { |
265 | module placeit() { | 321 | module placeit() { |
266 | translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell]) | 322 | translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell]) |
267 | rotate([0,-90,0]) | 323 | rotate([0,-90,0]) |
268 | children(); | 324 | children(); |
269 | } | 325 | } |
270 | if(what=="in") { | 326 | if(what=="in") { |
271 | placeit() translate([0,-inlet_w/2,0]) { | 327 | placeit() translate([0,-inlet_w/2,0]) { |
272 | difference() { | 328 | difference() { |
273 | cube(size=[inlet_h,inlet_w,inlet_long_l+fanduct_shell]); translate([inlet_h+fanduct_shell,0,inlet_long_l+fanduct_shell]) | 329 | cube(size=[inlet_h,inlet_w,inlet_long_l+fanduct_shell]); translate([inlet_h+fanduct_shell,0,inlet_long_l+fanduct_shell]) |
274 | rotate([-90,0,0]) | 330 | rotate([-90,0,0]) |
275 | translate([0,0,-1]) | 331 | translate([0,0,-1]) |
276 | cylinder(r=inlet_h,h=inlet_w+2*fanduct_shell+2,$fn=inlet_h*4); | 332 | cylinder(r=inlet_h,h=inlet_w+2*fanduct_shell+2,$fn=inlet_h*4); |
277 | } | 333 | } |
278 | // supports | 334 | // supports |
279 | for(i=[-1,0,1]) | 335 | for(i=[-1,0,1]) |
280 | translate([-fanduct_shell, | 336 | translate([-fanduct_shell, |
281 | (i+1)*(inlet_w-extrusion_width)/2, | 337 | (i+1)*(inlet_w-extrusion_width)/2, |
282 | -inlet_away-fanduct_w/2]) | 338 | -inlet_away-fanduct_w/2]) |
283 | cube(size=[fanduct_shell+1, | 339 | cube(size=[fanduct_shell+1, |
284 | extrusion_width, | 340 | extrusion_width, |
285 | inlet_long_l+fanduct_shell+inlet_away+fanduct_w/2]); | 341 | inlet_long_l+fanduct_shell+inlet_away+fanduct_w/2]); |
286 | } | 342 | } |
287 | hull() { | 343 | hull() { |
288 | placeit() translate([-fanduct_shell,-inlet_w/2-fanduct_shell,0]) | 344 | placeit() translate([-fanduct_shell,-inlet_w/2-fanduct_shell,0]) |
289 | cube(size=[inlet_h+2*fanduct_shell,inlet_w+2*fanduct_shell,fanduct_shell]); | 345 | cube(size=[inlet_h+2*fanduct_shell,inlet_w+2*fanduct_shell,fanduct_shell]); |
290 | translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,0]) | 346 | translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,0]) |
291 | translate([0,-inlet_w/2-fanduct_shell/2,0]) | 347 | translate([0,-inlet_w/2-fanduct_shell/2,0]) |
292 | cube(size=[1,inlet_w+fanduct_shell,fanduct_shell*2+fanduct_h]); | 348 | cube(size=[1,inlet_w+fanduct_shell,fanduct_shell*2+fanduct_h]); |
293 | } | 349 | } |
294 | }else if(what=="out") { | 350 | }else if(what=="out") { |
295 | placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) | 351 | placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) |
296 | cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,inlet_long_l+fanduct_shell+1]); | 352 | cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,inlet_long_l+fanduct_shell+1]); |
297 | hull() { | 353 | hull() { |
298 | placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) | 354 | placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) |
299 | cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,fanduct_shell]); | 355 | cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,fanduct_shell]); |
300 | translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,fanduct_shell]) | 356 | translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,fanduct_shell]) |
301 | translate([0,-inlet_w/2+fanduct_shell,0]) | 357 | translate([0,-inlet_w/2+fanduct_shell,0]) |
302 | cube(size=[1,inlet_w-2*fanduct_shell,fanduct_h]); | 358 | cube(size=[1,inlet_w-2*fanduct_shell,fanduct_h]); |
303 | } | 359 | } |
304 | } | 360 | } |
305 | } | 361 | } |
306 | 362 | ||
307 | // ***DUCT TAILS!!! WOO-OO! (every day they're out there making duct tails…) | 363 | // ***DUCT TAILS!!! WOO-OO! (every day they're out there making duct tails…) |