1include <gridfinity-rebuilt-utility.scad>
2
3// ===== INFORMATION ===== //
4/*
5 IMPORTANT: rendering will be better for analyzing the model if fast-csg is enabled. As of writing, this feature is only available in the development builds and not the official release of OpenSCAD, but it makes rendering only take a couple seconds, even for comically large bins. Enable it in Edit > Preferences > Features > fast-csg
6
7https://github.com/kennetek/gridfinity-rebuilt-openscad
8
9*/
10
11// ===== PARAMETERS ===== //
12
13/* [Special Variables] */
14$fa = 8;
15$fs = 0.25;
16
17/* [Bin or Base] */
18type = 0; // [0:bin, 1:base]
19
20/* [Printer Settings] */
21// extrusion width (walls will be twice this size)
22nozzle = 0.6;
23// slicer layer size
24layer = 0.35;
25// number of base layers on build plate
26bottom_layer = 3;
27
28/* [General Settings] */
29// number of bases along x-axis
30gridx = 1;
31// number of bases along y-axis
32gridy = 1;
33// bin height. See bin height information and "gridz_define" below.
34gridz = 6;
35// number of compartments along x-axis
36n_divx = 2;
37
38/* [Toggles] */
39// toggle holes on the base for magnet
40enable_holes = true;
41// round up the bin height to match the closest 7mm unit
42enable_zsnap = false;
43// toggle the lip on the top of the bin that allows stacking
44enable_lip = true;
45// chamfer inside bin for easy part removal
46enable_scoop_chamfer = true;
47// funnel-like features on the back of tabs for fingers to grab
48enable_funnel = true;
49// front inset (added for strength when there is a scoop)
50enable_inset = true;
51// "pinches" the top lip of the bin, for added strength
52enable_pinch = true;
53
54/* [Styles] */
55// determine what the variable "gridz" applies to based on your use case
56gridz_define = 0; // [0:gridz is the height of bins in units of 7mm increments - Zack's method,1:gridz is the internal height in millimeters, 2:gridz is the overall external height of the bin in millimeters]
57// how tabs are implemented
58style_tab = 0; // [0:continuous, 1:broken, 2:auto, 3:right, 4:center, 5:left, 6:none]
59// where to put X cutouts for attaching bases
60// selecting none will also disable crosses on bases
61style_base = 0; // [0:all, 1:corners, 2:edges, 3:auto, 4:none]
62
63// tab angle
64a_tab = 40;
65
66// ===== IMPLEMENTATION ===== //
67
68color("tomato")
69if (type != 0) gridfinityBaseVase(); // Generate a single base
70else gridfinityVase(); // Generate the bin
71
72
73// ===== CONSTRUCTION ===== //
74
75d_bottom = layer*(max(bottom_layer,1));
76x_l = l_grid/2;
77
78dht = (gridz_define==0)?gridz*7 : (gridz_define==1)?h_bot+gridz+h_base : gridz-(enable_lip?3.8:0);
79d_height = (enable_zsnap?((abs(dht)%7==0)?dht:dht+7-abs(dht)%7):dht)-h_base;
80
81d_fo1 = 2*r_fo1;
82
83f2c = sqrt(2)*(sqrt(2)-1); // fillet to chamfer ratio
84me = ((gridx*l_grid-0.5)/n_divx)-nozzle*4-d_fo1-12.7-4;
85m = min(d_tabw/1.8 + max(0,me), d_tabw/1.25);
86d_ramp = f2c*(l_grid*((d_height-2)/7+1)/12-r_f2)+d_wall2;
87d_edge = ((gridx*l_grid-0.5)/n_divx-d_tabw-d_fo1)/2;
88n_st = gridz <= 3 ? 6 : d_edge < 2 && style_tab != 0 && style_tab != 6 ? 1 : style_tab == 1 && n_divx <= 1? 0 : style_tab;
89
90n_x = (n_st==0?1:n_divx);
91spacing = (gridx*l_grid-0.5)/(n_divx);
92shift = n_st==3?-1:n_st==5?1:0;
93shiftauto = function (a,b) n_st!=2?0:a==1?-1:a==b?1:0;
94
95xAll = function (a,b) true;
96xCorner = function(a,b) (a==1||a==gridx)&&(b==1||b==gridy);
97xEdge = function(a,b) (a==1)||(a==gridx)||(b==1)||(b==gridy);
98xAuto = function(a,b) xCorner(a,b) || (a%2==1 && b%2 == 1);
99xNone = function(a,b) false;
100xFunc = [xAll, xCorner, xEdge, xAuto, xNone];
101
102
103module gridfinityVase() {
104 $dh = d_height;
105 difference() {
106 union() {
107 difference() {
108 block_vase_base();
109
110 if (n_st != 6)
111 transform_style()
112 transform_vtab_base((n_st<2?gridx*l_grid/n_x-0.5-d_fo1:d_tabw)-nozzle*4)
113 block_tab_base(-nozzle*sqrt(2));
114 }
115
116 if (enable_scoop_chamfer)
117 intersection() {
118 block_vase();
119 translate([0,gridy*l_grid/2-0.25-d_wall2/2,d_height/2+0.1])
120 cube([gridx*l_grid,d_wall2,d_height-0.2],center=true);
121 }
122
123 if (enable_funnel && gridz > 3)
124 pattern_linear((n_st==0?n_divx>1?n_divx:gridx:1), 1, (gridx*l_grid-d_fo1)/(n_st==0?n_divx>1?n_divx:gridx:1))
125 transform_funnel()
126 block_funnel_outside();
127
128 if (n_divx > 1)
129 pattern_linear(n_divx-1,1,(gridx*l_grid-0.5)/(n_divx))
130 block_divider();
131
132 if (n_divx < 1)
133 pattern_linear(n_st == 0 ? n_divx>1 ? n_divx-1 : gridx-1 : 1, 1, (gridx*l_grid-d_fo1)/((n_divx>1 ? n_divx : gridx)))
134 block_tabsupport();
135 }
136
137 if (enable_funnel && gridz > 3)
138 pattern_linear((n_st==0?n_divx>1?n_divx:gridx:1), 1, (gridx*l_grid-d_fo1)/(n_st==0?n_divx>1?n_divx:gridx:1))
139 transform_funnel()
140 block_funnel_inside();
141
142 if (!enable_lip)
143 translate([0,0,1.5*d_height])
144 cube([gridx*l_grid,gridy*l_grid,d_height], center=true);
145
146 block_x();
147 block_inset();
148 if (enable_pinch)
149 block_pinch();
150
151 if (bottom_layer <= 0)
152 translate([0,0,-50+layer+0.01])
153 cube([gridx*l_grid*10,gridy*l_grid*10,100], center=true);
154 }
155}
156
157module gridfinityBaseVase() {
158 difference() {
159 union() {
160 difference() {
161 intersection() {
162 block_base_blank(0);
163 translate([0,0,-h_base-1])
164 rounded_rectangle(l_grid-0.5-0.005, l_grid-0.5-0.005, h_base*10, r_fo1+0.001);
165 }
166 translate([0,0,0.01])
167 difference() {
168 block_base_blank(nozzle*4);
169 translate([0,0,-h_base])
170 cube([l_grid*2,l_grid*2,d_bottom*2],center=true);
171 }
172 // magic slice
173 rotate([0,0,90])
174 translate([0,0,-h_base+d_bottom+0.01])
175 cube([0.001,l_grid*gridx,d_height+d_bottom*2]);
176
177 }
178
179 pattern_circular(4)
180 intersection() {
181 rotate([0,0,45])
182 translate([-nozzle,3,-h_base+d_bottom+0.01])
183 cube([nozzle*2,l_grid*gridx,d_height+d_bottom*2]);
184
185 block_base_blank(nozzle*4-0.1);
186 }
187 if (enable_holes)
188 pattern_circular(4)
189 block_magnet_blank(nozzle);
190 }
191 if (enable_holes)
192 pattern_circular(4)
193 block_magnet_blank(0, false);
194
195 translate([0,0,h_base/2])
196 cube([l_grid*2, l_grid*2, h_base], center = true);
197 }
198
199 if (style_base != 4)
200 linear_extrude(d_bottom)
201 profile_x(0.1);
202}
203
204module block_magnet_blank(o = 0, half = true) {
205 translate([d_hole/2,d_hole/2,-h_base+0.1])
206 difference() {
207 hull() {
208 cylinder(r = r_hole2+o, h = h_hole*2, center = true);
209 cylinder(r = (r_hole2+o)-(h_base+0.1-h_hole), h = (h_base+0.1)*2, center = true);
210 }
211 if (half)
212 mirror([0,0,1])
213 cylinder(r=(r_hole2+o)*2, h = (h_base+0.1)*4);
214 }
215}
216
217module block_base_blank(o = 0) {
218 mirror([0,0,1]) {
219 hull() {
220 rounded_square(l_grid-o-0.05-2*r_c2-2*r_c1, h_base, r_fo3);
221 rounded_square(l_grid-o-0.05-2*r_c2, h_base-r_c1, r_fo2);
222 }
223 hull() {
224 rounded_square(l_grid-o-0.05-2*r_c2, r_c2, r_fo2);
225 mirror([0,0,1])
226 rounded_square(l_grid-o-0.05, d_bottom, r_fo1);
227 }
228 }
229}
230
231module block_pinch() {
232 sweep_rounded(gridx*l_grid-2*r_base-0.5-0.001, gridy*l_grid-2*r_base-0.5-0.001)
233 translate([r_base,0,0])
234 mirror([1,0,0])
235 translate([0,-(-d_height-h_base/2+r_c1),0])
236 copy_mirror([0,1,0])
237 difference() {
238 offset(delta = -nozzle*sqrt(2))
239 translate([0,-d_height-h_base/2+r_c1,0])
240 union() {
241 profile_wall_sub();
242 mirror([1,0,0])
243 square([10,d_height+h_base]);
244 }
245
246 translate([0,-50,0])
247 square([100,100], center = true);
248
249 translate([d_wall2-nozzle*2-d_clear*2,0,0])
250 square(r_c2*2);
251 }
252}
253
254module block_tabsupport() {
255 intersection() {
256 translate([0,0,0.1])
257 block_vase(d_height*4);
258
259 cube([nozzle*2, gridy*l_grid, d_height*3], center=true);
260
261 transform_vtab_base(gridx*l_grid*2)
262 block_tab_base(-nozzle*sqrt(2));
263 }
264}
265
266module block_divider() {
267 difference() {
268 intersection() {
269 translate([0,0,0.1])
270 block_vase();
271 cube([nozzle*2, gridy*l_grid, d_height*2], center=true);
272 }
273
274 if (n_st == 0) block_tab(0.1);
275 else block_divider_edgecut();
276
277 // cut divider clearance on negative Y side
278 translate([-gridx*l_grid/2,-(gridy*l_grid/2-0.25),0])
279 cube([gridx*l_grid,nozzle*2+0.1,d_height*2]);
280
281 // cut divider clearance on positive Y side
282 mirror([0,1,0])
283 if (enable_scoop_chamfer)
284 translate([-gridx*l_grid/2,-(gridy*l_grid/2-0.25),0])
285 cube([gridx*l_grid,d_wall2+0.1,d_height*2]);
286 else block_divider_edgecut();
287
288 // cut divider to have clearance with scoop
289 if (enable_scoop_chamfer)
290 transform_scoop()
291 offset(delta = 0.1)
292 polygon([
293 [0,0],
294 [d_ramp,d_ramp],
295 [d_ramp,d_ramp+nozzle/sqrt(2)],
296 [-nozzle/sqrt(2),0]
297 ]);
298 }
299
300 // divider slices
301 difference() {
302 for (i = [0:(d_height-d_bottom)/(layer)]) {
303
304 if (2*i*layer < d_height-layer/2-d_bottom-0.1)
305 mirror([0,1,0])
306 translate([0,(gridy*l_grid/2-0.25-nozzle)/2,layer/2+d_bottom+2*i*layer])
307 cube([nozzle*2-0.01,gridy*l_grid/2-0.25-nozzle,layer],center=true);
308
309 if ((2*i+1)*layer < d_height-layer/2-d_bottom-0.1)
310 translate([0,(gridy*l_grid/2-0.25-nozzle)/2,layer/2+d_bottom+(2*i+1)*layer])
311 cube([nozzle*2-0.01,gridy*l_grid/2-0.25-nozzle,layer],center=true);
312
313 }
314
315 // divider slices cut to tabs
316 if (n_st == 0)
317 transform_style()
318 transform_vtab_base((n_st<2?gridx*l_grid/n_x-0.5-d_fo1:d_tabw)-nozzle*4)
319 block_tab_base(-nozzle*sqrt(2));
320 }
321}
322
323module block_divider_edgecut() {
324 translate([-50,-gridy*l_grid/2+0.25,0])
325 rotate([90,0,90])
326 linear_extrude(100)
327 offset(delta = 0.1)
328 profile_wall_sub();
329}
330
331module transform_funnel() {
332 if (me > 6 && enable_funnel && gridz > 3 && n_st != 6)
333 transform_style()
334 render()
335 children();
336}
337
338module block_funnel_inside() {
339 intersection() {
340 block_tabscoop(m-nozzle*3*sqrt(2), 0.003, nozzle*2, 0.01);
341 block_tab(0.1);
342 }
343}
344
345module block_funnel_outside() {
346 intersection() {
347 difference() {
348 block_tabscoop(m, 0, 0, 0);
349 block_tabscoop(m-nozzle*4*sqrt(2), 0.003, nozzle*2, -1);
350 }
351 block_tab(-nozzle*sqrt(2)/2);
352 }
353}
354
355module block_vase_base() {
356 difference() {
357 // base
358 translate([0,0,-h_base]) {
359 translate([0,0,-0.1])
360 color("firebrick")
361 block_bottom(d_bottom, gridx, gridy, l_grid);
362 color("royalblue")
363 block_wall(gridx, gridy, l_grid) {
364 if (enable_lip) profile_wall();
365 else profile_wall2();
366 }
367 }
368
369 // magic slice
370 rotate([0,0,90])
371 mirror([0,1,0])
372 translate([0,0,d_bottom+0.001])
373 cube([0.001,l_grid*gridx,d_height+d_bottom*2]);
374 }
375
376 // scoop piece
377 if (enable_scoop_chamfer)
378 transform_scoop()
379 polygon([
380 [0,0],
381 [d_ramp,d_ramp],
382 [d_ramp,d_ramp+0.6/sqrt(2)],
383 [-0.6/sqrt(2),0]
384 ]);
385
386 // outside tab cutter
387 if (n_st != 6)
388 translate([-(n_x-1)*spacing/2,0,0])
389 for (i = [1:n_x])
390 translate([(i-1)*spacing,0,0])
391 translate([shiftauto(i,n_x)*d_edge + shift*d_edge,0,0])
392 intersection() {
393 block_vase();
394 transform_vtab_base(n_st<2?gridx*l_grid/n_x-0.5-d_fo1:d_tabw)
395 profile_tab();
396 }
397}
398
399module profile_wall_sub_sub() {
400 polygon([
401 [0,0],
402 [nozzle*2,0],
403 [nozzle*2,d_height-1.2-d_wall2+nozzle*2],
404 [d_wall2-d_clear,d_height-1.2],
405 [d_wall2-d_clear,d_height+h_base],
406 [0,d_height+h_base]
407 ]);
408}
409
410module block_inset() {
411 ixx = (gridx*l_grid-0.5)/2;
412 iyy = d_height/1.875;
413 izz = sqrt(ixx^2+iyy^2)*tan(40);
414 if (enable_scoop_chamfer && enable_inset)
415 difference() {
416 intersection() {
417 rotate([0,90,0])
418 translate([-iyy,0,0])
419 block_inset_sub(iyy, gridx*l_grid, 45);
420
421 rotate([0,90,0])
422 translate([-iyy,0,0])
423 rotate([0,90,0])
424 block_inset_sub(ixx, d_height*2, 45);
425 }
426
427 mirror([0,1,0])
428 translate([-gridx*l_grid/2,-(gridy*l_grid-0.5)/2+d_wall2-2*nozzle,0])
429 cube([gridx*l_grid,izz,d_height*2]);
430 }
431}
432
433module block_inset_sub(x, y, ang) {
434 translate([0,(gridy*l_grid-0.5)/2+r_fo1,0])
435 mirror([0,1,0])
436 linear_extrude(y,center=true)
437 polygon([[-x,0],[x,0],[0,x*tan(ang)]]);
438}
439
440module transform_style() {
441 translate([-(n_x-1)*spacing/2,0,0])
442 for (i = [1:n_x])
443 translate([(i-1)*spacing,0,0])
444 translate([shiftauto(i,n_x)*d_edge + shift*d_edge,0,0])
445 children();
446}
447
448module block_flushscoop() {
449 translate([0,gridy*l_grid/2-d_wall2-nozzle/2-1,d_height/2])
450 linear_extrude(d_height)
451 union() {
452 copy_mirror([1,0,0])
453 polygon([[0,0],[gridx*l_grid/2-r_fo1,0],[gridx*l_grid/2-r_fo1,1],[gridx*l_grid/2-r_fo1-r_c1*5,d_wall2-nozzle*2+1],[0,d_wall2-nozzle*2+1]]);
454 }
455
456 transform_scoop()
457 polygon([[0,0],[d_ramp,0],[d_ramp,d_ramp]]);
458}
459
460module profile_tab() {
461 union() {
462 copy_mirror([0,1,0])
463 polygon([[0,0],[d_tabh*cos(a_tab),0],[d_tabh*cos(a_tab),d_tabh*sin(a_tab)]]);
464 }
465}
466
467module profile_tabscoop(m) {
468 polyhedron([[m/2,0,0],[0,-m,0],[-m/2,0,0],[0,0,m]], [[0,2,1],[1,2,3],[0,1,3],[0,3,2]]);
469}
470
471module block_tabscoop(a=m, b=0, c=0, d=-1) {
472 translate([0,d_tabh*cos(a_tab)-l_grid*gridy/2+0.25+b,0])
473 difference() {
474 translate([0,0,-d_tabh*sin(a_tab)*2+d_height+2.1])
475 profile_tabscoop(a);
476
477 translate([-gridx*l_grid/2,-m,-m])
478 cube([gridx*l_grid,m-d_tabh*cos(a_tab)+0.005+c,d_height*20]);
479
480 if (d >= 0)
481 translate([0,0,-d_tabh*sin(a_tab)+d_height+m/2+d+2.1])
482 cube([gridx*l_grid,gridy*l_grid,m],center=true);
483 }
484}
485
486module transform_vtab(a=0,b=1) {
487 transform_vtab_base(gridx*l_grid/b-0.5-d_fo1+a)
488 children();
489}
490
491module transform_vtab_base(a) {
492 translate([0,d_tabh*cos(a_tab)-l_grid*gridy/2+0.25,-d_tabh*sin(a_tab)+d_height+2.1])
493 rotate([90,0,270])
494 linear_extrude(a, center=true)
495 children();
496}
497
498module block_tab(del, b=1) {
499 transform_vtab(-nozzle*4, b)
500 block_tab_base(del);
501}
502
503module block_tab_base(del) {
504 offset(delta = del)
505 union() {
506 profile_tab();
507 translate([d_tabh*cos(a_tab),-d_tabh*sin(a_tab),0])
508 square([l_grid,d_tabh*sin(a_tab)*2]);
509 }
510}
511
512module transform_scoop() {
513 intersection() {
514 block_vase();
515 translate([0,gridy*l_grid/2-d_ramp,layer*max(bottom_layer*1)])
516 rotate([90,0,90])
517 linear_extrude(2*l_grid*gridx,center=true)
518 children();
519 }
520}
521
522module block_vase(h = d_height*2) {
523 translate([0,0,-0.1])
524 rounded_rectangle(gridx*l_grid-0.5-nozzle, gridy*l_grid-0.5-nozzle, h, r_base+0.01-nozzle/2);
525}
526
527module profile_x(x_f = 3) {
528 difference() {
529 square([x_l,x_l],center=true);
530
531 pattern_circular(4)
532 translate([0,nozzle*sqrt(2),0])
533 rotate([0,0,45])
534 translate([x_f,x_f,0])
535 minkowski() {
536 square([x_l,x_l]);
537 circle(x_f);
538 }
539 }
540}
541
542module block_x() {
543 translate([-(gridx-1)*l_grid/2,-(gridy-1)*l_grid/2,0])
544 for (i = [1:gridx])
545 for (j = [1:gridy])
546 if (xFunc[style_base](i,j))
547 translate([(i-1)*l_grid,(j-1)*l_grid,0])
548 block_x_sub();
549}
550
551module block_x_sub() {
552 linear_extrude(d_bottom*2+0.01,center=true)
553 offset(0.05)
554 profile_x();
555}