summaryrefslogtreecommitdiffabout
authorMichael Krelin <hacker@klever.net>2016-06-13 19:50:14 (UTC)
committer Michael Krelin <hacker@klever.net>2016-06-13 19:50:14 (UTC)
commitc1cf1db2fe6d4bb3450f6f94e806eca04955be3b (patch) (unidiff)
tree9df2a570f21c5052f7c6da33c5eef80a04c5cd8b
parent8c7f2ad8328d741b1e901ca985f666507f744c09 (diff)
downloadfanductory-c1cf1db2fe6d4bb3450f6f94e806eca04955be3b.zip
fanductory-c1cf1db2fe6d4bb3450f6f94e806eca04955be3b.tar.gz
fanductory-c1cf1db2fe6d4bb3450f6f94e806eca04955be3b.tar.bz2
increase effective hotend clearance
so that it corresponds to theoretical
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--fanduct.scad3
1 files changed, 2 insertions, 1 deletions
diff --git a/fanduct.scad b/fanduct.scad
index 6407a96..49ab4c2 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -175,105 +175,106 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) {
175 }/*union*/ 175 }/*union*/
176 }/*airguides*/ 176 }/*airguides*/
177 } 177 }
178 178
179 module jets(what) { 179 module jets(what) {
180 od = fanduct_h*2/3+fanduct_shell; 180 od = fanduct_h*2/3+fanduct_shell;
181 md = fanduct_ir+fanduct_shell+fanduct_w/2; 181 md = fanduct_ir+fanduct_shell+fanduct_w/2;
182 jww = 2*md*sin(jet_angle/2); 182 jww = 2*md*sin(jet_angle/2);
183 difference() { 183 difference() {
184 for(a=[0:120:359]) rotate([0,0,a]) { 184 for(a=[0:120:359]) rotate([0,0,a]) {
185 if(what=="in") { 185 if(what=="in") {
186 hull() { 186 hull() {
187 intersection() { 187 intersection() {
188 translate([md-fanduct_w/2,-jww/2,0]) 188 translate([md-fanduct_w/2,-jww/2,0])
189 cube(size=[fanduct_shell+fanduct_w/2,jww,od]); 189 cube(size=[fanduct_shell+fanduct_w/2,jww,od]);
190 duct(what=what); 190 duct(what=what);
191 } 191 }
192 translate([0,0,-fanduct_elevation]) sphere(r=.5); 192 translate([0,0,-fanduct_elevation]) sphere(r=.5);
193 } 193 }
194 }else if(what=="out") { 194 }else if(what=="out") {
195 hull() { 195 hull() {
196 intersection() { 196 intersection() {
197 translate([md-fanduct_w/2,-jww/2+fanduct_shell,fanduct_shell]) 197 translate([md-fanduct_w/2,-jww/2+fanduct_shell,fanduct_shell])
198 cube(size=[fanduct_w/2,jww-2*fanduct_shell,od-2*fanduct_shell]); 198 cube(size=[fanduct_w/2,jww-2*fanduct_shell,od-2*fanduct_shell]);
199 duct(what=what); 199 duct(what=what);
200 } 200 }
201 translate([0,0,-fanduct_elevation]) sphere(r=.2); 201 translate([0,0,-fanduct_elevation]) sphere(r=.2);
202 } 202 }
203 } 203 }
204 } 204 }
205 if(what=="in") { 205 if(what=="in") {
206 translate([0,0,-fanduct_elevation-2+epsilon]) 206 translate([0,0,-fanduct_elevation-2+epsilon])
207 cylinder(r=fanduct_ir+fanduct_shell*2+fanduct_w+1,h=fanduct_elevation+2); 207 cylinder(r=fanduct_ir+fanduct_shell*2+fanduct_w+1,h=fanduct_elevation+2);
208 translate([0,0,-hotend_clearance]) 208 translate([0,0,-hotend_clearance])
209 rotate([0,0,30]) 209 rotate([0,0,30])
210 cylinder(r1=hotend_clearance*2,r2=0,h=hotend_clearance*2,$fn=6); 210 cylinder(r1=hotend_clearance*2,r2=0,h=hotend_clearance*2,$fn=6);
211 } 211 }
212 } 212 }
213 } 213 }
214 214
215 module dual(what=what) { 215 module dual(what=what) {
216 module hulls(spots=dual_spots) { 216 module hulls(spots=dual_spots) {
217 for(my=[0,1]) mirror([0,my,0]) for(pn=[0:1:len(spots)-2]) hull() { 217 for(my=[0,1]) mirror([0,my,0]) for(pn=[0:1:len(spots)-2]) hull() {
218 for(p=[spots[pn],spots[pn+1]]) translate(p) children(0); 218 for(p=[spots[pn],spots[pn+1]]) translate(p) children(0);
219 children([1:$children-1]); 219 children([1:$children-1]);
220 } 220 }
221 } 221 }
222 if(what=="in") { 222 if(what=="in") {
223 cfn= 4; // clearance cutout $fn
223 difference() { 224 difference() {
224 hulls() { 225 hulls() {
225 cylinder(d=fanduct_w+2*fanduct_shell,h=2*fanduct_shell+fanduct_h/2); 226 cylinder(d=fanduct_w+2*fanduct_shell,h=2*fanduct_shell+fanduct_h/2);
226 translate([0,-nozzles_apart/2,-fanduct_elevation-fanduct_blowtarget]) sphere(d=.1); 227 translate([0,-nozzles_apart/2,-fanduct_elevation-fanduct_blowtarget]) sphere(d=.1);
227 } 228 }
228 translate([0,0,epsilon]) hull() for(my=[0:1]) mirror([0,my,0]) for(s=dual_spots) translate(s) 229 translate([0,0,epsilon]) hull() for(my=[0:1]) mirror([0,my,0]) for(s=dual_spots) translate(s)
229 mirror([0,0,1]) cylinder(d=fanduct_w+2*fanduct_shell+2,h=fanduct_elevation-fanduct_blowtarget+1); 230 mirror([0,0,1]) cylinder(d=fanduct_w+2*fanduct_shell+2,h=fanduct_elevation-fanduct_blowtarget+1);
230 for(s=[-1,1]) translate([0,s*nozzles_apart/2,-1]) 231 for(s=[-1,1]) translate([0,s*nozzles_apart/2,-1])
231 rotate([0,0,45]) cylinder(r=hotend_clearance,h=fanduct_h+2*fanduct_shell+2,$fn=4); 232 rotate([0,0,180/cfn]) cylinder(r=hotend_clearance/cos(180/cfn),h=fanduct_h+2*fanduct_shell+2,$fn=cfn);
232 } 233 }
233 }else if(what=="out") { 234 }else if(what=="out") {
234 hulls() { 235 hulls() {
235 translate([0,0,fanduct_shell]) cylinder(d=fanduct_w,h=fanduct_h/2-fanduct_shell/2); 236 translate([0,0,fanduct_shell]) cylinder(d=fanduct_w,h=fanduct_h/2-fanduct_shell/2);
236 translate([0,-nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget]) sphere(d=.1); 237 translate([0,-nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget]) sphere(d=.1);
237 } 238 }
238 }else if(what=="airguides") { 239 }else if(what=="airguides") {
239 far = fanduct_ir+fanduct_shell+fanduct_w; 240 far = fanduct_ir+fanduct_shell+fanduct_w;
240 near = fanduct_ir; 241 near = fanduct_ir;
241 union() { 242 union() {
242 for(my=[0,1]) mirror([0,my,0]) { 243 for(my=[0,1]) mirror([0,my,0]) {
243 guideline([ [-far ,0], [0,0] ]); 244 guideline([ [-far ,0], [0,0] ]);
244 guideline([ [-far ,inlet_w/2/4], 245 guideline([ [-far ,inlet_w/2/4],
245 [-near ,nozzles_apart/2] ]); 246 [-near ,nozzles_apart/2] ]);
246 guideline([ [-near-fanduct_w/3,nozzles_apart/2+near+fanduct_w/3] ]); 247 guideline([ [-near-fanduct_w/3,nozzles_apart/2+near+fanduct_w/3] ]);
247 guideline([ [0 ,nozzles_apart/2+near+fanduct_w/2] ]); 248 guideline([ [0 ,nozzles_apart/2+near+fanduct_w/2] ]);
248 } 249 }
249 } 250 }
250 } 251 }
251 } 252 }
252 253
253 if(dual) dual(what); 254 if(dual) dual(what);
254 else if(type=="circular") circus(what); 255 else if(type=="circular") circus(what);
255 else if(type=="3jets") jets(what); 256 else if(type=="3jets") jets(what);
256 } 257 }
257 258
258 // ***air intake 259 // ***air intake
259 module intake(what) { 260 module intake(what) {
260 module placeit() { 261 module placeit() {
261 translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell]) 262 translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell])
262 rotate([0,-90,0]) 263 rotate([0,-90,0])
263 children(); 264 children();
264 } 265 }
265 if(what=="in") { 266 if(what=="in") {
266 placeit() translate([0,-inlet_w/2,0]) { 267 placeit() translate([0,-inlet_w/2,0]) {
267 difference() { 268 difference() {
268 cube(size=[inlet_h,inlet_w,inlet_long_l+fanduct_shell]); 269 cube(size=[inlet_h,inlet_w,inlet_long_l+fanduct_shell]);
269 translate([inlet_h+fanduct_shell,0,inlet_long_l+fanduct_shell]) 270 translate([inlet_h+fanduct_shell,0,inlet_long_l+fanduct_shell])
270 rotate([-90,0,0]) 271 rotate([-90,0,0])
271 translate([0,0,-1]) 272 translate([0,0,-1])
272 cylinder(r=inlet_h,h=inlet_w+2*fanduct_shell+2,$fn=inlet_h*4); 273 cylinder(r=inlet_h,h=inlet_w+2*fanduct_shell+2,$fn=inlet_h*4);
273 } 274 }
274 // supports 275 // supports
275 for(i=[-1,0,1]) 276 for(i=[-1,0,1])
276 translate([-fanduct_shell, 277 translate([-fanduct_shell,
277 (i+1)*(inlet_w-extrusion_width)/2, 278 (i+1)*(inlet_w-extrusion_width)/2,
278 -inlet_away-fanduct_w/2]) 279 -inlet_away-fanduct_w/2])
279 cube(size=[fanduct_shell, 280 cube(size=[fanduct_shell,