author | Michael Krelin <hacker@klever.net> | 2018-09-01 11:29:30 (UTC) |
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committer | Michael Krelin <hacker@klever.net> | 2018-09-01 11:29:30 (UTC) |
commit | 8dd62c375a2df44eaa42a4ac58905f15d4b17cca (patch) (unidiff) | |
tree | 8367f583086adf69cd40eba8cdda9e61a9ef4936 /another.scad | |
parent | 3c20c090273e3f87fc3d0e50d031400f57aff238 (diff) | |
download | extrudery-8dd62c375a2df44eaa42a4ac58905f15d4b17cca.zip extrudery-8dd62c375a2df44eaa42a4ac58905f15d4b17cca.tar.gz extrudery-8dd62c375a2df44eaa42a4ac58905f15d4b17cca.tar.bz2 |
move pushfit a tiny bit closer
-rw-r--r-- | another.scad | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/another.scad b/another.scad index 0d67286..8334b11 100644 --- a/another.scad +++ b/another.scad | |||
@@ -86,48 +86,50 @@ module the_extruder( | |||
86 | 86 | ||
87 | idler_filament_offset = filament_path_d/2; | 87 | idler_filament_offset = filament_path_d/2; |
88 | lever_shell = mount_screwhead_h+0.5; | 88 | lever_shell = mount_screwhead_h+0.5; |
89 | lever_thickness=max(spring_d+spring_d_clearance+layer_height*8,idler_h+idler_v_tolerance+2*lever_shell); | 89 | lever_thickness=max(spring_d+spring_d_clearance+layer_height*8,idler_h+idler_v_tolerance+2*lever_shell); |
90 | lsd = idler_d-idler_clearance*2; // the diameter of lever thingie | 90 | lsd = idler_d-idler_clearance*2; // the diameter of lever thingie |
91 | longwing=(mount_d+mount_screw_d+mount_screw_d_tolerance+spring_d+spring_d_clearance)/2+min_xy_shell; | 91 | longwing=(mount_d+mount_screw_d+mount_screw_d_tolerance+spring_d+spring_d_clearance)/2+min_xy_shell; |
92 | shortwing = let(a=mount_d/2,c=(pulley_d+idler_d)/2/sqrt(2)) | 92 | shortwing = let(a=mount_d/2,c=(pulley_d+idler_d)/2/sqrt(2)) |
93 | sqrt(c*c+pow(a-c,2)); | 93 | sqrt(c*c+pow(a-c,2)); |
94 | longwing_travel = idler_travel*longwing/shortwing; | 94 | longwing_travel = idler_travel*longwing/shortwing; |
95 | h_ = (pulley_d+idler_d)/(2*sqrt(2)); | 95 | h_ = (pulley_d+idler_d)/(2*sqrt(2)); |
96 | ri = sqrt( pow(h_,2) + pow(mount_d/2-h_,2) ); | 96 | ri = sqrt( pow(h_,2) + pow(mount_d/2-h_,2) ); |
97 | spring_dl = idler_travel*longwing/ri; | 97 | spring_dl = idler_travel*longwing/ri; |
98 | // finger and spring support | 98 | // finger and spring support |
99 | fsw = gearbox_d-(gearbox_d-mount_d)/2-max(spring_lc,longwing_travel+(gearbox_d-mount_d)/2); | 99 | fsw = gearbox_d-(gearbox_d-mount_d)/2-max(spring_lc,longwing_travel+(gearbox_d-mount_d)/2); |
100 | 100 | ||
101 | mount_min_depth = mounthole_min_depth ? mounthole_min_depth : mounthole_depth-1; | 101 | mount_min_depth = mounthole_min_depth ? mounthole_min_depth : mounthole_depth-1; |
102 | mount_max_depth = mounthole_max_depth ? mounthole_max_depth : mounthole_depth+1; | 102 | mount_max_depth = mounthole_max_depth ? mounthole_max_depth : mounthole_depth+1; |
103 | filament_elevation=protrusion_h+pulley_elevation+teeth_elevation; | 103 | filament_elevation=protrusion_h+pulley_elevation+teeth_elevation; |
104 | ls_z = filament_elevation; // leverspace mid-z | 104 | ls_z = filament_elevation; // leverspace mid-z |
105 | ls_h = lever_thickness+lever_v_clearance; // leverspace height | 105 | ls_h = lever_thickness+lever_v_clearance; // leverspace height |
106 | mount_depth = mount_screw_l - (ls_z+ls_h/2+min_z_shell); | 106 | mount_depth = mount_screw_l - (ls_z+ls_h/2+min_z_shell); |
107 | body_h = max(protrusion_h+bore_l,mount_screw_l-mount_depth+mount_screwhead_h+min_z_shell,ls_z*2); | 107 | body_h = max(protrusion_h+bore_l,mount_screw_l-mount_depth+mount_screwhead_h+min_z_shell,ls_z*2); |
108 | echo("mount depth",mount_depth); | 108 | echo("mount depth",mount_depth); |
109 | 109 | ||
110 | pf_offset = mount_d/sqrt(2)/2+mount_screw_d/2+min_xy_shell; | ||
111 | |||
110 | module teardrop(r,d,h,center=false,angle=45) { | 112 | module teardrop(r,d,h,center=false,angle=45) { |
111 | dd = d ? d : (2*r); | 113 | dd = d ? d : (2*r); |
112 | $fn = dd*fnd; | 114 | $fn = dd*fnd; |
113 | cylinder(d=dd,h=h,center=center); | 115 | cylinder(d=dd,h=h,center=center); |
114 | if(angle>0) translate([0,0,center?-h/2:0]) | 116 | if(angle>0) translate([0,0,center?-h/2:0]) |
115 | rotate([0,0,angle]) | 117 | rotate([0,0,angle]) |
116 | cube(size=[d/2,d/2,h]); | 118 | cube(size=[d/2,d/2,h]); |
117 | } | 119 | } |
118 | 120 | ||
119 | module mirrorleft() { | 121 | module mirrorleft() { |
120 | mirror([left?0:1,0,0]) children(); | 122 | mirror([left?0:1,0,0]) children(); |
121 | } | 123 | } |
122 | module place_idler() { | 124 | module place_idler() { |
123 | rotate([0,0,45]) | 125 | rotate([0,0,45]) |
124 | translate([(pulley_d+idler_d)/2,0,0]) | 126 | translate([(pulley_d+idler_d)/2,0,0]) |
125 | children(); | 127 | children(); |
126 | } | 128 | } |
127 | module finger_indent(d=lever_thickness,depth/*=1*/,r/*=15*/) { | 129 | module finger_indent(d=lever_thickness,depth/*=1*/,r/*=15*/) { |
128 | if(depth) { | 130 | if(depth) { |
129 | hh = (-4*pow(depth,2)+pow(d,2))/(8*depth); | 131 | hh = (-4*pow(depth,2)+pow(d,2))/(8*depth); |
130 | rr = depth+hh; | 132 | rr = depth+hh; |
131 | translate([0,0,hh]) sphere(r=rr,$fn=fnr*rr); | 133 | translate([0,0,hh]) sphere(r=rr,$fn=fnr*rr); |
132 | }else if(r) { | 134 | }else if(r) { |
133 | hh=sqrt(pow(r,2)-pow(d,2)/4); | 135 | hh=sqrt(pow(r,2)-pow(d,2)/4); |
@@ -139,49 +141,49 @@ module the_extruder( | |||
139 | translate([0,0,-epsilon]) mirror([0,0,1]) cylinder(d=gearbox_d,h=1,$fn=60); | 141 | translate([0,0,-epsilon]) mirror([0,0,1]) cylinder(d=gearbox_d,h=1,$fn=60); |
140 | for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) | 142 | for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) |
141 | cylinder(d=mount_screw_d,h=20,$fn=30); | 143 | cylinder(d=mount_screw_d,h=20,$fn=30); |
142 | translate([0,0,-epsilon]) cylinder(d=protrusion_d,h=protrusion_h,$fn=30); | 144 | translate([0,0,-epsilon]) cylinder(d=protrusion_d,h=protrusion_h,$fn=30); |
143 | translate([0,0,protrusion_h]) { | 145 | translate([0,0,protrusion_h]) { |
144 | difference() { | 146 | difference() { |
145 | cylinder(d=bore_d,h=bore_l,$fn=30); | 147 | cylinder(d=bore_d,h=bore_l,$fn=30); |
146 | translate([-bore_d/2-1,bore_dd-bore_d/2,-1]) | 148 | translate([-bore_d/2-1,bore_dd-bore_d/2,-1]) |
147 | cube([bore_d+2,bore_d/2,bore_l+2]); | 149 | cube([bore_d+2,bore_d/2,bore_l+2]); |
148 | } | 150 | } |
149 | translate([0,0,pulley_elevation]) { | 151 | translate([0,0,pulley_elevation]) { |
150 | cylinder(d=pulley_d,h=pulley_h,$fn=30); | 152 | cylinder(d=pulley_d,h=pulley_h,$fn=30); |
151 | translate([0,0,teeth_elevation]) { | 153 | translate([0,0,teeth_elevation]) { |
152 | place_idler() { | 154 | place_idler() { |
153 | cylinder(d=idler_d,h=idler_h,center=true,$fn=30); | 155 | cylinder(d=idler_d,h=idler_h,center=true,$fn=30); |
154 | cylinder(d=idler_screw_d,h=lever_thickness+2,center=true,$fn=30); | 156 | cylinder(d=idler_screw_d,h=lever_thickness+2,center=true,$fn=30); |
155 | }//place idler | 157 | }//place idler |
156 | // filament path | 158 | // filament path |
157 | rotate([0,0,45]) { | 159 | rotate([0,0,45]) { |
158 | translate([pulley_d/2-idler_filament_offset,0,0]) rotate([90,0,0]) { | 160 | translate([pulley_d/2-idler_filament_offset,0,0]) rotate([90,0,0]) { |
159 | cylinder(d=filament_d,h=gearbox_d,center=false,$fn=15); | 161 | cylinder(d=filament_d,h=gearbox_d,center=false,$fn=15); |
160 | }//rotate translate | 162 | }//rotate translate |
161 | translate([pulley_d/2+filament_offset,0,0]) rotate([-90,0,0]) { | 163 | translate([pulley_d/2+filament_offset,0,0]) rotate([-90,0,0]) { |
162 | cylinder(d=filament_d,h=gearbox_d,center=false,$fn=15); | 164 | cylinder(d=filament_d,h=gearbox_d,center=false,$fn=15); |
163 | translate([0,0,mount_d/sqrt(2)/2+mount_screw_d]) | 165 | translate([0,0,pf_offset]) |
164 | pushfit(pf); | 166 | pushfit(pf); |
165 | }//rotate translate | 167 | }//rotate translate |
166 | }//rotate | 168 | }//rotate |
167 | }//translate teeth | 169 | }//translate teeth |
168 | }//translate pulley | 170 | }//translate pulley |
169 | }//translate protrusion | 171 | }//translate protrusion |
170 | }//vitamins | 172 | }//vitamins |
171 | 173 | ||
172 | module lever() { | 174 | module lever() { |
173 | translate([0,0,protrusion_h+pulley_elevation+teeth_elevation]) { | 175 | translate([0,0,protrusion_h+pulley_elevation+teeth_elevation]) { |
174 | difference() { | 176 | difference() { |
175 | union() { | 177 | union() { |
176 | hull() { | 178 | hull() { |
177 | place_idler() | 179 | place_idler() |
178 | cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); | 180 | cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); |
179 | translate([mount_d/2,0,0]) | 181 | translate([mount_d/2,0,0]) |
180 | cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); | 182 | cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); |
181 | }//hull | 183 | }//hull |
182 | hull() { | 184 | hull() { |
183 | translate([mount_d/2,0,0]) | 185 | translate([mount_d/2,0,0]) |
184 | cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); | 186 | cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); |
185 | translate([mount_d/2,-longwing,0]) rotate([0,90,0]) | 187 | translate([mount_d/2,-longwing,0]) rotate([0,90,0]) |
186 | cylinder(d=lever_thickness,h=lsd,center=true,$fn=60); | 188 | cylinder(d=lever_thickness,h=lsd,center=true,$fn=60); |
187 | }//hull | 189 | }//hull |
@@ -233,116 +235,115 @@ module the_extruder( | |||
233 | }//translate | 235 | }//translate |
234 | }//lever module | 236 | }//lever module |
235 | 237 | ||
236 | module body() { | 238 | module body() { |
237 | difference() { | 239 | difference() { |
238 | union() { | 240 | union() { |
239 | cylinder(d=gearbox_d,h=body_h,$fn=fnd*gearbox_d); | 241 | cylinder(d=gearbox_d,h=body_h,$fn=fnd*gearbox_d); |
240 | // spring tensioner part | 242 | // spring tensioner part |
241 | translate([-gearbox_d/2,0,0]) hull() { | 243 | translate([-gearbox_d/2,0,0]) hull() { |
242 | translate([0,-longwing,ls_z]) | 244 | translate([0,-longwing,ls_z]) |
243 | rotate([0,90,0]) | 245 | rotate([0,90,0]) |
244 | cylinder(d=lever_thickness,h=fsw,$fn=fnd*lever_thickness); | 246 | cylinder(d=lever_thickness,h=fsw,$fn=fnd*lever_thickness); |
245 | hh=body_h-ls_z; | 247 | hh=body_h-ls_z; |
246 | translate([0,0,ls_z]) | 248 | translate([0,0,ls_z]) |
247 | mirror([0,1,0]) cube(size=[fsw,longwing+(st_split_w+st_split_w_tolerance)/2+st_thickshell,body_h-ls_z]); | 249 | mirror([0,1,0]) cube(size=[fsw,longwing+(st_split_w+st_split_w_tolerance)/2+st_thickshell,body_h-ls_z]); |
248 | hhh=ls_z; | 250 | hhh=ls_z; |
249 | translate([0,0,0]) | 251 | translate([0,0,0]) |
250 | mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]); | 252 | mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]); |
251 | }//hull translate | 253 | }//hull translate |
252 | 254 | ||
253 | // pushfit bracket | 255 | // pushfit bracket |
254 | translate([0,0,filament_elevation]) | 256 | translate([0,0,filament_elevation]) |
255 | rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0]) | 257 | rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0]) |
256 | rotate([-90,0,0]) | 258 | rotate([-90,0,0]) |
257 | translate([0,0,mount_d/sqrt(2)/2+mount_screw_d-gearbox_d/2/*TODO:*/]) { | 259 | translate([0,0,pf_offset-gearbox_d/2/*TODO:*/]) { |
258 | pfbl = pf_h(pf)+gearbox_d/2; //TODO: | 260 | pfbl = pf_h(pf)+gearbox_d/2; //TODO: |
259 | pfbd = pf_d(pf)+2*pf_shell; | 261 | pfbd = pf_d(pf)+2*pf_shell; |
260 | hull() { | 262 | hull() { |
261 | cylinder(d=pfbd,h=pfbl,$fn=pfbd*fnd); | 263 | cylinder(d=pfbd,h=pfbl,$fn=pfbd*fnd); |
262 | translate([-epsilon/2,0,0]) { | 264 | translate([-epsilon/2,0,0]) { |
263 | cube(size=[epsilon,filament_elevation,pfbl-filament_elevation+pfbd/2]); | 265 | cube(size=[epsilon,filament_elevation,pfbl-filament_elevation+pfbd/2]); |
264 | mirror([0,1,0]) | 266 | mirror([0,1,0]) |
265 | cube(size=[epsilon,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfbd/2]); | 267 | cube(size=[epsilon,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfbd/2]); |
266 | }//translate | 268 | }//translate |
267 | }//hull | 269 | }//hull |
268 | }//translate rotate translate rotate translate | 270 | }//translate rotate translate rotate translate |
269 | }//union (first child of difference) | 271 | }//union (first child of difference) |
270 | 272 | ||
271 | // protrusion | 273 | // protrusion |
272 | translate([0,0,-1]) | 274 | translate([0,0,-1]) |
273 | cylinder(d=protrusion_d+protrusion_tolerance_h,h=protrusion_h+protrusion_tolerance_v+1,$fn=fnd*(protrusion_d+protrusion_tolerance_h)); | 275 | cylinder(d=protrusion_d+protrusion_tolerance_h,h=protrusion_h+protrusion_tolerance_v+1,$fn=fnd*(protrusion_d+protrusion_tolerance_h)); |
274 | // mount screw holes | 276 | // mount screw holes |
275 | for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) { | 277 | for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) { |
276 | translate([0,0,mount_screw_l-mount_depth-(bridges?layer_height:-epsilon)]) | 278 | translate([0,0,mount_screw_l-mount_depth-(bridges?layer_height:-epsilon)]) |
277 | mirror([0,0,1]) | 279 | mirror([0,0,1]) |
278 | cylinder(d=mount_screw_d+mount_screw_d_tolerance, | 280 | cylinder(d=mount_screw_d+mount_screw_d_tolerance, |
279 | h=mount_screw_l-mount_depth+1, | 281 | h=mount_screw_l-mount_depth+1, |
280 | $fn=fnd*(mount_screw_d+mount_screw_d_tolerance)); | 282 | $fn=fnd*(mount_screw_d+mount_screw_d_tolerance)); |
281 | translate([0,0,mount_screw_l-mount_depth]) | 283 | translate([0,0,mount_screw_l-mount_depth]) |
282 | cylinder(d=mount_screwhead_d,h=body_h+1,$fn=fnd*mount_screwhead_d); | 284 | cylinder(d=mount_screwhead_d,h=body_h+1,$fn=fnd*mount_screwhead_d); |
283 | }//for | 285 | }//for |
284 | // pushfit | 286 | // pushfit |
285 | pf_offset = mount_d/sqrt(2)/2+mount_screw_d; | ||
286 | translate([0,0,filament_elevation]) | 287 | translate([0,0,filament_elevation]) |
287 | rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0]) | 288 | rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0]) |
288 | rotate([-90,0,0]) | 289 | rotate([-90,0,0]) |
289 | translate([0,0,pf_offset]) | 290 | translate([0,0,pf_offset]) |
290 | rotate([0,0,180]) { | 291 | rotate([0,0,180]) { |
291 | pushfit(pf); | 292 | pushfit(pf); |
292 | mirror([0,0,1]) { | 293 | mirror([0,0,1]) { |
293 | fh = 1.5* (filament_guide_d-filament_path_d)/2; | 294 | fh = 1.5* (filament_guide_d-filament_path_d)/2; |
294 | fo = pf_offset -filament_path_d /*(idler_d+idler_clearance)/2*/-fh; | 295 | fo = pf_offset -filament_path_d /*(idler_d+idler_clearance)/2*/-fh; |
295 | translate([0,0,-1]) teardrop(d=filament_guide_d,h=fo/2,angle=225); | 296 | translate([0,0,-1]) teardrop(d=filament_guide_d,h=fo/2,angle=225); |
296 | translate([0,0,-1]) teardrop(d=filament_path_d,h=gearbox_d/2+1,angle=-225); | 297 | translate([0,0,-1]) teardrop(d=filament_path_d,h=gearbox_d/2+1,angle=-225); |
297 | translate([0,0,fo+epsilon]) | 298 | translate([0,0,fo+epsilon]) |
298 | cylinder(d1=filament_path_d,d2=filament_guide_d,h=fh,$fn=fnd*filament_guide_d); | 299 | cylinder(d1=filament_path_d,d2=filament_guide_d,h=fh,$fn=fnd*filament_guide_d); |
299 | }//mirror | 300 | }//mirror |
300 | }//rotate translate rotate translate rotate translate | 301 | }//rotate translate rotate translate rotate translate |
301 | // pulley | 302 | // pulley |
302 | cylinder(d=pulley_d+pulley_small_d_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_d_clearance)); | 303 | cylinder(d=pulley_d+pulley_small_d_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_d_clearance)); |
303 | cylinder(d=pulley_d+pulley_d_clearance,ls_z-max(idler_h,filament_guide_d)/2,$fn=fnd*(pulley_d+pulley_d_clearance)); | 304 | cylinder(d=pulley_d+pulley_d_clearance,ls_z-max(idler_h,filament_guide_d)/2,$fn=fnd*(pulley_d+pulley_d_clearance)); |
304 | 305 | ||
305 | translate([0,0,ls_z-ls_h/2]) { | 306 | translate([0,0,ls_z-ls_h/2]) { |
306 | // idler travel | 307 | // idler travel |
307 | translate([mount_d/2,0,0]) | 308 | translate([mount_d/2,0,0]) |
308 | rotate([0,0,45]) | 309 | rotate([0,0,45]) |
309 | rotate_extrude(angle=90,$fn=fnr*(shortwing+(idler_d+idler_clearance)/2)) | 310 | rotate_extrude(angle=90,$fn=fnr*(shortwing+(idler_d+idler_clearance)/2)) |
310 | square([shortwing+(idler_d+idler_clearance)/2,ls_h]); | 311 | square([shortwing+(idler_d+idler_clearance)/2,ls_h]); |
311 | // idler itself | 312 | // idler itself |
312 | place_idler() | 313 | place_idler() |
313 | cylinder(d=idler_d+idler_clearance,h=ls_h,$fn=fnd*(idler_d+idler_clearance)); | 314 | cylinder(d=idler_d+idler_clearance,h=ls_h,$fn=fnd*(idler_d+idler_clearance)); |
314 | // lever space | 315 | // lever space |
315 | rotate([0,0,45]) | 316 | rotate([0,0,45]) |
316 | rotate_extrude(angle=-135+max(atan(2*fsw/gearbox_d-1),atan(gearbox_d/mount_d-1))) | 317 | rotate_extrude(angle=-135+max(atan(2*fsw/gearbox_d-1),atan(gearbox_d/mount_d-1))) |
317 | square([gearbox_d/2+1,ls_h]); | 318 | square([gearbox_d/2+1,ls_h]); |
318 | } | 319 | } |
319 | 320 | ||
320 | // back side cutout | 321 | // back side cutout |
321 | // XXX: this is somewhat ugly and potentially bugged, | 322 | // XXX: this is somewhat ugly and potentially bugged, |
322 | // but I want to sleep. | 323 | // but I want to sleep. |
323 | a0_ = atan( | 324 | a0_ = atan( |
324 | (mount_d/sqrt(2)/2+mount_screw_d+pf_h(pf)+gearbox_d/2) | 325 | (pf_offset+pf_h(pf)+gearbox_d/2) |
325 | / | 326 | / |
326 | ( | 327 | ( |
327 | pulley_d/2+filament_offset- | 328 | pulley_d/2+filament_offset- |
328 | (pf_d(pf)+2*pf_shell)/2/cos(30) | 329 | (pf_d(pf)+2*pf_shell)/2/cos(30) |
329 | ) | 330 | ) |
330 | ); | 331 | ); |
331 | a0 = -135 + ( (a0_>0) ? a0_ : 180+a0_ ); | 332 | a0 = -135 + ( (a0_>0) ? a0_ : 180+a0_ ); |
332 | a1 = atan((longwing-lever_thickness/2)/(gearbox_d/2)); | 333 | a1 = atan((longwing-lever_thickness/2)/(gearbox_d/2)); |
333 | translate([0,0,ls_z]) difference() { | 334 | translate([0,0,ls_z]) difference() { |
334 | rotate([0,0,-180+a0]) | 335 | rotate([0,0,-180+a0]) |
335 | rotate_extrude(angle=a1-a0) | 336 | rotate_extrude(angle=a1-a0) |
336 | translate([0,-ls_h/2]) | 337 | translate([0,-ls_h/2]) |
337 | square([sqrt(pow(gearbox_d/2,2)+pow(longwing-lever_thickness/2,2))+1, | 338 | square([sqrt(pow(gearbox_d/2,2)+pow(longwing-lever_thickness/2,2))+1, |
338 | ls_h]); | 339 | ls_h]); |
339 | translate([-mount_d/2,0,0]) | 340 | translate([-mount_d/2,0,0]) |
340 | cylinder(d=gearbox_d-mount_d,h=ls_h+2,center=true,$fn=fnd*(gearbox_d-mount_d)); | 341 | cylinder(d=gearbox_d-mount_d,h=ls_h+2,center=true,$fn=fnd*(gearbox_d-mount_d)); |
341 | }//difference translate | 342 | }//difference translate |
342 | 343 | ||
343 | // spring tensioner | 344 | // spring tensioner |
344 | translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) { | 345 | translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) { |
345 | mirror([0,0,1]) { | 346 | mirror([0,0,1]) { |
346 | translate([0,0,st_thickshell]) | 347 | translate([0,0,st_thickshell]) |
347 | hull() for(o=[0,spring_d]) translate([0,-o,0]) | 348 | hull() for(o=[0,spring_d]) translate([0,-o,0]) |
348 | rotate([0,0,30]) | 349 | rotate([0,0,30]) |