4 include <commitid.scad>
24 interlock_fine = 0.66;
26 interlock_fine_slope = 1.0;
27 interlock_fine_lenslop = 1.0;
33 machine_rear_to_front = 85;
35 machine_rear_profile = [
51 machine_front_profile = [
66 cutout_l_end_y_front_slop = 0.5;
67 cutout_l_end_y_rear_slop = 0.5;
68 cutout_l_end_x_slop = 0.25;
71 cutout_l_end_y = machine_rear_to_front;
72 cutout_l_end_curve = 1;
73 cutout_l_end_y_total = cutout_l_end_y
74 + cutout_l_end_y_front_slop + cutout_l_end_y_rear_slop;
76 tile02_tr = [-250, 0];
79 cutout_tile01_y = 170 - 147 + cutout_l_end_y_front_slop;
80 cutout_tile11_x = cutout_l_end_x + cutout_l_end_curve;
81 cutout_tile11_y = cutout_l_end_y_total - cutout_tile01_y;
83 // front and rear curves
87 rearcurve_strt_len = 52;
89 rearcurve_z_slop = 0.75;
91 rearcurve_avoid_y = 35;
93 rearcurve_double_inrad = 26.10 + 8.04;
99 frontcurve_side_skew = 3.5 / 72;
105 ply_edge_hole_dist = ply_edge_min + ply_hole_dia/2;
107 echo(str("HOLES IN PLY ctr dist from PLY edge = ", ply_edge_hole_dist));
109 hole_slop = (ply_hole_dia - post_dia)/2;
110 tile_hard_edge_hole_dist = ply_edge_hole_dist + hole_slop;
112 echo(str("HOLES IN PLY ctr dist from TILE HARD edge = ",
113 tile_hard_edge_hole_dist));
115 echo(str("HOLES IN PLY ctr dist from TILE ROUND edge = ",
116 tile_hard_edge_hole_dist + round_edge_rad));
118 thehd = [ tile_hard_edge_hole_dist, tile_hard_edge_hole_dist ];
120 thehd_tl = [ -thehd_tr[0], thehd_tr[1] ];
121 thehd_bl = -thehd_tr;
122 thehd_br = -thehd_tl;
124 interlock_rad = interlock_dia/2;
125 interlock_negative_rad = interlock_rad + 0.125;
127 interlock_sq_adj = 0.2; // arbitrary
129 first_front = machine_front_profile[len(machine_front_profile)-1];
134 cylinder(r= post_dia/2, h= tile_th + ply_th - post_shorter);
135 translate([0,0, tile_th]) {
136 cylinder(r= screw_big_dia/2, h= screw_big_len);
137 cylinder(r= screw_dia/2, h= ply_th, $fn=20);
141 tsz = tile_hard_edge_hole_dist - test_edge + 1;
142 translate([0,0, tile_th/2]) {
143 cube([post_dia, tsz*2, tile_th], center=true);
144 cube([tsz*2, post_dia, tile_th], center=true);
150 module Posts(posts) {
152 translate(concat(p, [0]))
157 module TileBase(botleft, topright){
158 size = topright - botleft;
159 botleft_post = botleft + thehd_tr;
160 topright_post = topright + thehd_bl;
163 translate(concat(botleft, [0]))
164 cube(concat(size, [tile_th]));
166 translate( concat(botleft_post, [ -tile_th ])
167 + 0.5 * [ post_dia, post_dia, 0 ] )
168 Commitid_BestCount_M( topright_post-botleft_post
169 + [-post_dia,-post_dia]
173 translate( concat(botleft + [thehd[0], 0], [0]) )
174 Commitid_BestCount([ size[0] - thehd[0]*2, thehd[1] ]);
177 translate(concat(botleft + [test_edge,test_edge], [test_tile_th]))
178 cube(concat(size - [test_edge,test_edge]*2, [tile_th]));
179 translate(concat(botleft_post, [-1]))
180 cube(concat(topright_post-botleft_post, [tile_th+2]));
184 cube(max(test_edge, tile_hard_edge_hole_dist)*2, center=true);
191 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars) { body; }
192 m4_define(`INREFFRAME',`
193 length_vec = ($2) - ($1);
194 length = dist2d([0,0], length_vec);
195 length_uvec = length_vec / length;
196 ortho_uvec = [ -length_uvec[1], length_uvec[0] ];
197 m = [ [ length_uvec[0], ortho_uvec[0], 0, ($1)[0], ],
198 [ length_uvec[1], ortho_uvec[1], 0, ($1)[1], ],
205 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars)
206 m4_dnl INREFFRAME_EDGE { body; }
207 m4_define(`INREFFRAME_EDGE',`
208 translate([0,0, -round_edge_rad])
211 module RoundEdge(left_cnr, right_cnr) {
212 INREFFRAME(left_cnr, right_cnr)
216 cylinder(r= round_edge_rad, h= length, $fn=50);
217 translate([-1, 0, -20])
218 cube([length+2, 20, 20]);
223 module RoundCornerCut(ci) {
224 // ci should be [this_cnr, right_cnr]
225 // where right_cnr is to the right (ie, anticlockwise)
228 offr= round_cnr_rad - round_edge_rad;
229 INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
231 cube(offr*2 - 0.1, center=true);
232 translate([offr, offr, 0])
233 cylinder(center=true, h=20, r= offr);
238 module RoundCornerAdd(ci) {
241 bigr = round_cnr_rad - round_edge_rad;
242 INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
244 cube(bigr*2 + 0.1, center=true);
245 translate([bigr, bigr, 0])
246 rotate_extrude(convexity=10, $fn=50)
249 circle(r= round_edge_rad, $fn=50);
257 module InterlockLobePlan(negative) {
258 r = negative ? interlock_negative_rad : interlock_rad;
259 ymir = negative ? 0 : 1;
263 translate([thehd[0], 0]){
267 translate([-dx, -0.1])
268 square([ dx*2, r/2 + 0.1 ]);
270 translate([ xi*dx, r ])
278 module InterlockEdgePlan(negative, nlobes, length, dosquare=true) {
279 for (lobei = [ 0 : nlobes-1 ]) {
280 lobex = (length - thehd[0]*2) * (lobei ? lobei / (nlobes-1) : 0);
281 translate([lobex, 0, 0]) {
282 InterlockLobePlan(negative);
288 slotshorter = negative ? -0.1 : interlock_fine_lenslop;
289 mirror([0, negative])
290 translate([slotshorter, iadj])
291 square([length - slotshorter*2, interlock_fine + iadj*2]);
295 module InterlockEdge(left_cnr, right_cnr, negative=0, nlobes=2) {
296 plusth = negative * 1.0;
297 protr = interlock_fine + interlock_sq_adj;
300 z1 = -tile_th/2 - protr / interlock_fine_slope;
301 z3 = -tile_th/2 + protr / interlock_fine_slope;
303 negsign = negative ? -1 : +1;
304 yprotr = negsign * protr;
306 INREFFRAME(left_cnr, right_cnr) {
307 for (vsect = [ // zs0 zs1 ys0, ys1
308 [ -tile_th-plusth, plusth, 0, 0],
309 [ z1, z2, 0, yprotr],
310 [ z2, z3, yprotr, 0],
320 [ 0,1, -sl, -ys0 + negsign*interlock_sq_adj ],
324 linear_extrude(height=zsd, convexity=10)
325 InterlockEdgePlan(negative, nlobes, length, !!ysd);
330 function TestPiece_holes2corners(holes) =
331 [ holes[0] + thehd_bl,
334 holes[0] + thehd_tl ];
336 module TestPiece1(){ ////toplevel
340 corners = TestPiece_holes2corners(holes);
341 rcs = [corners[0], corners[1]];
344 TileBase(corners[0], corners[2]);
346 RoundEdge(corners[0], corners[1]);
347 RoundEdge(corners[3], corners[0]);
349 InterlockEdge(corners[1], corners[2], 1, nlobes=1);
355 module TestPiece2(){ ////toplevel
359 corners = TestPiece_holes2corners(holes);
360 TileBase(corners[0], corners[2]);
362 RoundEdge(corners[0], corners[1]);
363 InterlockEdge(corners[3], corners[0], 0, nlobes=1);
366 module TestDemo(){ ////toplevel
367 translate([ -thehd[0], 0 ])
370 translate([ +thehd[0] + demo_slop, 0 ])
374 module Machine_Arm(){
375 ysz = cutout_l_end_y_total;
376 // assume the round end is arc of a circle
377 chordlen = dist2d([0,0], [ cutout_l_end_y, cutout_l_end_curve ]);
378 endrad = cutout_l_end_y / cutout_l_end_curve * chordlen;
380 translate([0,0,-30]) linear_extrude(height=60) {
381 translate(tile01_tr + [0, (-cutout_tile01_y + cutout_tile11_y)/2]) {
383 translate([-100, -ysz/2])
385 translate([ endrad - cutout_tile11_x - cutout_l_end_x_slop, 0 ])
386 circle(r=endrad, $fa=0.01,$fd=5);
392 module Machine_Profile(){
393 first_rear = machine_rear_profile[0];
394 below_point = 0.5 * ( first_rear + first_front ) + [ 0, -10 ];
395 pol = concat( machine_rear_profile,
397 machine_front_profile);
398 skew_angle = atan2( first_front[1] - first_rear[1],
399 first_front[0] - first_rear[0] );
400 echo(below_point, pol, skew_angle);
405 rotate([0,0, -skew_angle ]){
406 //translate( - first_front )
414 module Machine_RearProfile(){
417 translate([ -200 + machine_rear_to_front/2, -100 ]) {
423 module Machine_FrontProfile(){
426 translate([ machine_rear_to_front/2, -100 ]) {
432 module Machine_Curves(){ ////toplevel
433 translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
437 translate([ -reartablet_x,
441 cube([ reartablet_x+1,
445 translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
448 translate([ 0, -first_front[0] , 0 ])
449 multmatrix([[1, -frontcurve_side_skew, 0, 0],
453 translate([ 0, first_front[0] , 0 ])
455 rotate([0,-90,0])rotate([0,0,-90]){
456 linear_extrude(height= 200)
457 Machine_FrontProfile();
460 translate([ rearcurve_strt_len,
467 rotate([0,-90,0])rotate([0,0,-90]){
468 linear_extrude(height= rearcurve_strt_len + 1)
469 Machine_RearProfile();
474 rearcurve_double_inrad ]) {
477 rotate_extrude(convexity=10, $fn=32) {
478 rotate([0,0,90]) translate([ 0,
479 -rearcurve_double_inrad ]) {
480 Machine_RearProfile();
485 translate([0,-75,0]) cube([150,150,150]);
492 module Machine(){ ////toplevel
497 function Rectangle_corners(c0, sz) =
498 // returns the corners of a rectangle from c0 to c0+sz
499 // if sz is positive, the corners are anticlockwise starting with c0
502 c0 + [ sz[0], sz[1] ],
505 function Rectangle_corners2posts(c) =
511 module Rectangle_TileBase(c) { TileBase(c[0], c[2]); }
513 function Posts_interpolate_one(c0,c1) = [c0, (c0+c1)/2, c1];
516 m4_dnl c is from Rectangle_corners and
517 m4_dnl ix is a corner number
518 m4_dnl expands to two comma-separated corners:
519 m4_dnl that denoted by ix, and the next one anticlockwise
520 m4_define(`R_EDGE',`$1[$2],$1[(($2)+1)%4]')
522 module Tile02(){ ////toplevel
524 c0 = tile02_tr + -sz;
525 c = Rectangle_corners(c0, sz);
526 posts = Rectangle_corners2posts(c);
530 Rectangle_TileBase(c);
532 RoundEdge(R_EDGE(c,0));
533 RoundEdge(R_EDGE(c,3));
534 InterlockEdge(R_EDGE(c,2), 0);
536 InterlockEdge(R_EDGE(c,1), 1);
542 module Tile12(){ ////toplevel
544 c0 = tile02_tr + [-sz[0], 0];
545 c = Rectangle_corners(c0, sz);
546 posts = Rectangle_corners2posts(c);
550 Rectangle_TileBase(c);
552 RoundEdge(R_EDGE(c,2));
553 RoundEdge(R_EDGE(c,3));
555 InterlockEdge(R_EDGE(c,0), 1);
556 InterlockEdge(R_EDGE(c,1), 1);
562 tile_01_11_cnr = tile01_tr + [-cutout_tile11_x, 0];
563 tile_11_10_cnr = tile01_tr + [0, cutout_tile11_y];
565 module Tile11(){ ////toplevel
567 c0 = tile02_tr + [0,0];
568 c = Rectangle_corners(c0, sz);
569 cnr_posts = Rectangle_corners2posts(c);
571 Posts_interpolate_one(cnr_posts[0],
572 cnr_posts[1] - [cutout_tile11_x, 0]),
573 [ cnr_posts[1] + [0, cutout_tile11_y],
579 Rectangle_TileBase(c);
581 RoundEdge(R_EDGE(c,2));
582 InterlockEdge(R_EDGE(c,3));
584 InterlockEdge(c[0], tile_01_11_cnr, 1);
585 InterlockEdge(tile_11_10_cnr, c[2], 1);
590 tile_01_00_cnr = tile01_tr + [0, -cutout_tile01_y];
592 module Tile01(){ ////toplevel
594 c0 = tile02_tr + [0,-sz[1]];
595 c = Rectangle_corners(c0, sz);
596 cnr_posts = Rectangle_corners2posts(c);
598 Posts_interpolate_one(R_EDGE(cnr_posts,0)),
599 [ cnr_posts[2] + [0, -cutout_tile01_y] ],
600 Posts_interpolate_one(cnr_posts[2] - [cutout_tile11_x, 0],
605 Rectangle_TileBase(c);
607 RoundEdge(R_EDGE(c,0));
608 InterlockEdge(tile_01_11_cnr, c[3]);
609 InterlockEdge(R_EDGE(c,3));
611 InterlockEdge(c[1], tile_01_00_cnr, 1);
616 module Tile10(){ ////toplevel
618 c0 = tile02_tr + [sz[0],0];
619 c = Rectangle_corners(c0, sz);
620 cnr_posts = Rectangle_corners2posts(c);
621 cty = cutout_tile11_y;
622 rcy = cty + rearcurve_avoid_y;
623 posts = [ cnr_posts[0] + [ 0, cty ],
624 cnr_posts[1] + [ -sz[1] + rearedge_len - cutout_l_end_x, cty ],
625 cnr_posts[1] + [ 0, rcy ],
631 Rectangle_TileBase(c);
633 RoundEdge(R_EDGE(c,1));
634 RoundEdge(R_EDGE(c,2));
635 InterlockEdge(c[3], tile_11_10_cnr);
643 module Demo(){ ////toplevel
644 translate(demo_slop*[-2,1]) color("blue") Tile12();
645 translate(demo_slop*[-2,0]) color("red") Tile02();
646 translate(demo_slop*[-2,1]) color("orange") Tile11();
647 translate(demo_slop*[-2,0]) color("purple") Tile01();
648 translate(demo_slop*[-3,1]) color("blue") Tile10();
657 //Machine_RearProfile();