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authorMichael Krelin <hacker@klever.net>2016-05-30 22:59:27 (UTC)
committer Michael Krelin <hacker@klever.net>2016-05-30 22:59:27 (UTC)
commitd2f2c94ddbbf6c00b6ea89257f8f3e242f9216bd (patch) (unidiff)
tree9a46be41f0f7f953ea1c3bb24c2f740f279fcefc /fanduct.scad
parent045e95f7882a47bd5dc017705f6743a61e6a5214 (diff)
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widen duct a bit
Diffstat (limited to 'fanduct.scad') (more/less context) (ignore whitespace changes)
-rw-r--r--fanduct.scad2
1 files changed, 1 insertions, 1 deletions
diff --git a/fanduct.scad b/fanduct.scad
index b8994d4..7fc1ff4 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -1,252 +1,252 @@
1use <snapper.scad>; 1use <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 heater_w = 16; // heatblock width 6 heater_w = 16; // heatblock width
7 heater_l = 20; // heatblock length 7 heater_l = 20; // heatblock length
8 nozzle_offset=4.5;// nozzle offset from the edge of heatblock 8 nozzle_offset=4.5;// nozzle offset from the edge of heatblock
9 9
10 fanduct_elevation = 3; // fanduct elevation above nozzle tip 10 fanduct_elevation = 3; // fanduct elevation above nozzle tip
11 fanduct_h = 6; // inner height of the duct 11 fanduct_h = 6; // inner height of the duct
12 fanduct_w = 6; // inner width of the duct 12 fanduct_w = 7; // inner width of the duct
13 fanduct_shell=1.2; // shell thickness 13 fanduct_shell=1.2; // shell thickness
14 fanduct_ir = sqrt(pow(heater_w/2,2)+pow(heater_l-nozzle_offset,2))+5;// inner radius 14 fanduct_ir = sqrt(pow(heater_w/2,2)+pow(heater_l-nozzle_offset,2))+5;// inner radius
15 15
16 jet_angle = 60; // angular width of the jet 16 jet_angle = 60; // angular width of the jet
17 17
18 inlet_w = 12.5; // inlet width 18 inlet_w = 12.5; // inlet width
19 inlet_h = 17; // inlet height 19 inlet_h = 17; // inlet height
20 inlet_l = 7; // inlet length of protrusion (or depth of intrusion:)) 20 inlet_l = 7; // inlet length of protrusion (or depth of intrusion:))
21 inlet_away = 15;// how far away inlet is 21 inlet_away = 15;// how far away inlet is
22 22
23hotend_clearance = 12; 23hotend_clearance = 12;
24 24
25 snapper_d = 8; snapper_overlap=0.2;// snip snap 25 snapper_d = 8; snapper_overlap=0.2;// snip snap
26 26
27smooth_f = 120; 27smooth_f = 120;
28 28
29type="3jets"; // "3jets" ; // circular|3jets 29type="3jets"; // "3jets" ; // circular|3jets
30 30
31 31
32module fanduct(type=type) { 32module fanduct(type=type) {
33 33
34 // ***duct is all around! 34 // ***duct is all around!
35 module duct(what) { 35 module duct(what) {
36 if(what=="in") { 36 if(what=="in") {
37 sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell; 37 sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell;
38 smax = max(sh,sv); 38 smax = max(sh,sv);
39 rotate_extrude($fn=smooth_f) 39 rotate_extrude($fn=smooth_f)
40 translate([sh/2+fanduct_ir,sv/2]) 40 translate([sh/2+fanduct_ir,sv/2])
41 scale([sh/smax,sv/smax]) 41 scale([sh/smax,sv/smax])
42 circle(d=smax,$fn=4*smax); 42 circle(d=smax,$fn=4*smax);
43 }else if(what=="out") { 43 }else if(what=="out") {
44 sh = fanduct_w; sv = fanduct_h; 44 sh = fanduct_w; sv = fanduct_h;
45 smax = max(sh,sv); 45 smax = max(sh,sv);
46 rotate_extrude($fn=smooth_f) 46 rotate_extrude($fn=smooth_f)
47 translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell]) 47 translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell])
48 scale([sh/smax,sv/smax]) 48 scale([sh/smax,sv/smax])
49 circle(d=smax,$fn=4*smax); 49 circle(d=smax,$fn=4*smax);
50 } 50 }
51 } 51 }
52 52
53 // ***bumps for easier position adjustments in line with hotend 53 // ***bumps for easier position adjustments in line with hotend
54 module marks(what) { 54 module marks(what) {
55 if(what=="in") { 55 if(what=="in") {
56 for(y=[-1,1]) 56 for(y=[-1,1])
57 hull() for(z=[0,-fanduct_shell-fanduct_h/2]) 57 hull() for(z=[0,-fanduct_shell-fanduct_h/2])
58 translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z]) 58 translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z])
59 rotate([90,0,0]) { 59 rotate([90,0,0]) {
60 cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30); 60 cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30);
61 for(z=[-1,1]) translate([0,0,z*fanduct_w/2]) 61 for(z=[-1,1]) translate([0,0,z*fanduct_w/2])
62 sphere(r=fanduct_shell,$fn=30); 62 sphere(r=fanduct_shell,$fn=30);
63 } 63 }
64 } 64 }
65 } 65 }
66 66
67 // ***output 67 // ***output
68 module output(what,type=type) { 68 module output(what,type=type) {
69 module guideline(xyxy) { 69 module guideline(xyxy) {
70 module pin(xy) { 70 module pin(xy) {
71 translate([xy[0],xy[1],0]) 71 translate([xy[0],xy[1],0])
72 cylinder(d=2*extrusion_width,h=2*fanduct_shell+inlet_h,$fn=6); 72 cylinder(d=2*extrusion_width,h=2*fanduct_shell+inlet_h,$fn=6);
73 } 73 }
74 xyxyxy=concat(xyxy,[[0,0]]); 74 xyxyxy=concat(xyxy,[[0,0]]);
75 for(i=[0:1:len(xyxyxy)-2]) 75 for(i=[0:1:len(xyxyxy)-2])
76 hull() for(j=[i,i+1]) pin(xyxyxy[j]); 76 hull() for(j=[i,i+1]) pin(xyxyxy[j]);
77 } 77 }
78 78
79 module circus(what) { 79 module circus(what) {
80 if(what=="in") { 80 if(what=="in") {
81 difference() { 81 difference() {
82 rotate_extrude($fn=smooth_f) 82 rotate_extrude($fn=smooth_f)
83 polygon([ 83 polygon([
84 [0,-fanduct_elevation], 84 [0,-fanduct_elevation],
85 [fanduct_ir+fanduct_shell,fanduct_shell+fanduct_h/2], 85 [fanduct_ir+fanduct_shell,fanduct_shell+fanduct_h/2],
86 [fanduct_ir+fanduct_shell+fanduct_w/2,0], 86 [fanduct_ir+fanduct_shell+fanduct_w/2,0],
87 [0,-fanduct_elevation-.1]]); 87 [0,-fanduct_elevation-.1]]);
88 translate([0,0,-1]) 88 translate([0,0,-1])
89 cylinder(r=hotend_clearance,h=fanduct_h+2*fanduct_shell+2,$fn=smooth_f); 89 cylinder(r=hotend_clearance,h=fanduct_h+2*fanduct_shell+2,$fn=smooth_f);
90 mirror([0,0,1]) 90 mirror([0,0,1])
91 translate([0,0,-epsilon]) 91 translate([0,0,-epsilon])
92 cylinder(r=fanduct_ir+fanduct_shell+1,h=fanduct_elevation+.1+2); 92 cylinder(r=fanduct_ir+fanduct_shell+1,h=fanduct_elevation+.1+2);
93 } 93 }
94 }else if(what=="out") { 94 }else if(what=="out") {
95 rotate_extrude($fn=smooth_f) 95 rotate_extrude($fn=smooth_f)
96 polygon([ 96 polygon([
97 [0,-fanduct_elevation], 97 [0,-fanduct_elevation],
98 [fanduct_ir+fanduct_shell+1,fanduct_h/2], 98 [fanduct_ir+fanduct_shell+1,fanduct_h/2],
99 [fanduct_ir+fanduct_w/2+fanduct_shell+1,fanduct_shell], 99 [fanduct_ir+fanduct_w/2+fanduct_shell+1,fanduct_shell],
100 [0,-fanduct_elevation-.1]]); 100 [0,-fanduct_elevation-.1]]);
101 }else if(what=="airguides") { 101 }else if(what=="airguides") {
102 inr = fanduct_ir+fanduct_shell; our = inr+fanduct_w; 102 inr = fanduct_ir+fanduct_shell; our = inr+fanduct_w;
103 union() { 103 union() {
104 for(my=[0,1]) mirror([0,my,0]) { 104 for(my=[0,1]) mirror([0,my,0]) {
105 guideline([ 105 guideline([
106 [-our,inlet_w/6], 106 [-our,inlet_w/6],
107 [-inr*sin(60),inr*cos(60)] 107 [-inr*sin(60),inr*cos(60)]
108 ]); 108 ]);
109 a0=30; as=15; a1=180; 109 a0=30; as=15; a1=180;
110 for(a=[a0+as:as:a1]) { 110 for(a=[a0+as:as:a1]) {
111 f = as/(a1-a+as); 111 f = as/(a1-a+as);
112 rotate([0,0,a]) guideline([[-inr-fanduct_w*f,0]]); 112 rotate([0,0,a]) guideline([[-inr-fanduct_w*f,0]]);
113 } 113 }
114 guideline([ 114 guideline([
115 [-our+fanduct_w*cos(30)*3/4,fanduct_w*sin(30)*3/4], 115 [-our+fanduct_w*cos(30)*3/4,fanduct_w*sin(30)*3/4],
116 [-inr*cos(10),inr*sin(10)] 116 [-inr*cos(10),inr*sin(10)]
117 ]); 117 ]);
118 } 118 }
119 }/*union*/ 119 }/*union*/
120 }/*airguides*/ 120 }/*airguides*/
121 } 121 }
122 122
123 module jets(what) { 123 module jets(what) {
124 od = fanduct_h/2+fanduct_shell; 124 od = fanduct_h/2+fanduct_shell;
125 md = fanduct_ir+fanduct_shell+fanduct_w/2; 125 md = fanduct_ir+fanduct_shell+fanduct_w/2;
126 jww = 2*md*sin(jet_angle/2); 126 jww = 2*md*sin(jet_angle/2);
127 render(convexity=8) difference() { 127 render(convexity=8) difference() {
128 for(a=[0:120:359]) rotate([0,0,a]) { 128 for(a=[0:120:359]) rotate([0,0,a]) {
129 if(what=="in") { 129 if(what=="in") {
130 hull() { 130 hull() {
131 render(convexity=4) intersection() { 131 render(convexity=4) intersection() {
132 translate([md-fanduct_shell-fanduct_w/2,-jww/2,0]) 132 translate([md-fanduct_shell-fanduct_w/2,-jww/2,0])
133 cube(size=[fanduct_shell+fanduct_w/2,jww,od]); 133 cube(size=[fanduct_shell+fanduct_w/2,jww,od]);
134 duct(what=what); 134 duct(what=what);
135 } 135 }
136 translate([0,0,-fanduct_elevation]) sphere(r=.5); 136 translate([0,0,-fanduct_elevation]) sphere(r=.5);
137 } 137 }
138 }else if(what=="out") { 138 }else if(what=="out") {
139 hull() { 139 hull() {
140 render(convexity=4) intersection() { 140 render(convexity=4) intersection() {
141 translate([md-fanduct_w/2-fanduct_shell,-jww/2+fanduct_shell,fanduct_shell]) 141 translate([md-fanduct_w/2-fanduct_shell,-jww/2+fanduct_shell,fanduct_shell])
142 cube(size=[fanduct_w/2+fanduct_shell,jww-2*fanduct_shell,od-2*fanduct_shell]); 142 cube(size=[fanduct_w/2+fanduct_shell,jww-2*fanduct_shell,od-2*fanduct_shell]);
143 duct(what=what); 143 duct(what=what);
144 } 144 }
145 translate([0,0,-fanduct_elevation]) sphere(r=.2); 145 translate([0,0,-fanduct_elevation]) sphere(r=.2);
146 } 146 }
147 } 147 }
148 } 148 }
149 if(what=="in") { 149 if(what=="in") {
150 translate([0,0,-fanduct_elevation-2+epsilon]) 150 translate([0,0,-fanduct_elevation-2+epsilon])
151 cylinder(r=fanduct_ir+fanduct_shell*2+fanduct_w+1,h=fanduct_elevation+2); 151 cylinder(r=fanduct_ir+fanduct_shell*2+fanduct_w+1,h=fanduct_elevation+2);
152 translate([0,0,-hotend_clearance]) 152 translate([0,0,-hotend_clearance])
153 rotate([0,0,30]) 153 rotate([0,0,30])
154 cylinder(r1=hotend_clearance*2,r2=0,h=hotend_clearance*2,$fn=6); 154 cylinder(r1=hotend_clearance*2,r2=0,h=hotend_clearance*2,$fn=6);
155 } 155 }
156 } 156 }
157 } 157 }
158 158
159 if(type=="circular") circus(what); 159 if(type=="circular") circus(what);
160 else if(type=="3jets") jets(what); 160 else if(type=="3jets") jets(what);
161 } 161 }
162 162
163 // ***air intake 163 // ***air intake
164 module intake(what) { 164 module intake(what) {
165 module placeit() { 165 module placeit() {
166 translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell]) 166 translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell])
167 rotate([0,-90,0]) 167 rotate([0,-90,0])
168 children(); 168 children();
169 } 169 }
170 if(what=="in") { 170 if(what=="in") {
171 placeit() translate([0,-inlet_w/2,0]) { 171 placeit() translate([0,-inlet_w/2,0]) {
172 cube(size=[inlet_h,inlet_w,inlet_l+fanduct_shell]); 172 cube(size=[inlet_h,inlet_w,inlet_l+fanduct_shell]);
173 // supports 173 // supports
174 for(i=[-1,0,1]) 174 for(i=[-1,0,1])
175 translate([-fanduct_shell, 175 translate([-fanduct_shell,
176 (i+1)*(inlet_w-extrusion_width)/2, 176 (i+1)*(inlet_w-extrusion_width)/2,
177 -inlet_away-fanduct_w/2]) 177 -inlet_away-fanduct_w/2])
178 cube(size=[fanduct_shell, 178 cube(size=[fanduct_shell,
179 extrusion_width, 179 extrusion_width,
180 inlet_l+fanduct_shell+inlet_away+fanduct_w/2]); 180 inlet_l+fanduct_shell+inlet_away+fanduct_w/2]);
181 } 181 }
182 hull() { 182 hull() {
183 placeit() translate([-fanduct_shell,-inlet_w/2-fanduct_shell,0]) 183 placeit() translate([-fanduct_shell,-inlet_w/2-fanduct_shell,0])
184 cube(size=[inlet_h+2*fanduct_shell,inlet_w+2*fanduct_shell,fanduct_shell]); 184 cube(size=[inlet_h+2*fanduct_shell,inlet_w+2*fanduct_shell,fanduct_shell]);
185 translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,0]) 185 translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,0])
186 translate([0,-inlet_w/2-fanduct_shell/2,0]) 186 translate([0,-inlet_w/2-fanduct_shell/2,0])
187 cube(size=[1,inlet_w+fanduct_shell,fanduct_shell*2+fanduct_h]); 187 cube(size=[1,inlet_w+fanduct_shell,fanduct_shell*2+fanduct_h]);
188 } 188 }
189 }else if(what=="out") { 189 }else if(what=="out") {
190 placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) 190 placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0])
191 cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,inlet_l+fanduct_shell+1]); 191 cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,inlet_l+fanduct_shell+1]);
192 hull() { 192 hull() {
193 placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) 193 placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0])
194 cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,fanduct_shell]); 194 cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,fanduct_shell]);
195 translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,fanduct_shell]) 195 translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,fanduct_shell])
196 translate([0,-inlet_w/2+fanduct_shell,0]) 196 translate([0,-inlet_w/2+fanduct_shell,0])
197 cube(size=[1,inlet_w-2*fanduct_shell,fanduct_h]); 197 cube(size=[1,inlet_w-2*fanduct_shell,fanduct_h]);
198 } 198 }
199 } 199 }
200 } 200 }
201 201
202 // ***DUCT TAILS!!! WOO-OO! (every day they're out there making duct tails…) 202 // ***DUCT TAILS!!! WOO-OO! (every day they're out there making duct tails…)
203 module tails(what) { 203 module tails(what) {
204 if(what=="in") { 204 if(what=="in") {
205 for(mx=[0,1]) mirror([mx,0,0]) 205 for(mx=[0,1]) mirror([mx,0,0])
206 translate([fanduct_ir+fanduct_shell+fanduct_w/2,0,fanduct_shell+fanduct_h/2]) 206 translate([fanduct_ir+fanduct_shell+fanduct_w/2,0,fanduct_shell+fanduct_h/2])
207 rotate([90,0,90]) 207 rotate([90,0,90])
208 translate([0,0,-snapper_d/2]) 208 translate([0,0,-snapper_d/2])
209 snapper(d=snapper_d,o=snapper_overlap,side=0,l=fanduct_h*3/2+fanduct_shell); 209 snapper(d=snapper_d,o=snapper_overlap,side=0,l=fanduct_h*3/2+fanduct_shell);
210 } 210 }
211 } 211 }
212 212
213 module parts(what) { 213 module parts(what) {
214 union() { 214 union() {
215 duct(what); 215 duct(what);
216 marks(what); 216 marks(what);
217 output(what); 217 output(what);
218 intake(what); 218 intake(what);
219 tails(what); 219 tails(what);
220 } 220 }
221 } 221 }
222 222
223 difference() { 223 difference() {
224 parts("in"); 224 parts("in");
225 parts("out"); 225 parts("out");
226 } 226 }
227 intersection() { 227 intersection() {
228 output("airguides"); 228 output("airguides");
229 union() { 229 union() {
230 duct("in"); output("in"); intake("in"); 230 duct("in"); output("in"); intake("in");
231 } 231 }
232 } 232 }
233} 233}
234 234
235view="full"; // hcut|vcut|* 235view="full"; // hcut|vcut|*
236 236
237hinfinity=4*(fanduct_ir+fanduct_shell*2+fanduct_w+inlet_away); 237hinfinity=4*(fanduct_ir+fanduct_shell*2+fanduct_w+inlet_away);
238vinfinity=2*(fanduct_shell*2+fanduct_h+inlet_h); 238vinfinity=2*(fanduct_shell*2+fanduct_h+inlet_h);
239if(view=="hcut") { 239if(view=="hcut") {
240 difference() { 240 difference() {
241 fanduct(); 241 fanduct();
242 translate([-hinfinity/2,-hinfinity/2,fanduct_shell+fanduct_h/2]) 242 translate([-hinfinity/2,-hinfinity/2,fanduct_shell+fanduct_h/2])
243 cube(size=[hinfinity,hinfinity,vinfinity]); 243 cube(size=[hinfinity,hinfinity,vinfinity]);
244 } 244 }
245}else if(view=="vcut") { 245}else if(view=="vcut") {
246 difference() { 246 difference() {
247 fanduct(); 247 fanduct();
248 translate([-hinfinity/2,0,-vinfinity/2]) 248 translate([-hinfinity/2,0,-vinfinity/2])
249 cube(size=[hinfinity,hinfinity,vinfinity]); 249 cube(size=[hinfinity,hinfinity,vinfinity]);
250 } 250 }
251}else fanduct(); 251}else fanduct();
252/* vim:set sw=1 ai: */ 252/* vim:set sw=1 ai: */