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;
100 frontcurve_avoid_y = 70;
101 frontcurve_z_slop = 0.75;
107 ply_edge_hole_dist = ply_edge_min + ply_hole_dia/2;
109 echo(str("HOLES IN PLY ctr dist from PLY edge = ", ply_edge_hole_dist));
111 hole_slop = (ply_hole_dia - post_dia)/2;
112 tile_hard_edge_hole_dist = ply_edge_hole_dist + hole_slop;
114 echo(str("HOLES IN PLY ctr dist from TILE HARD edge = ",
115 tile_hard_edge_hole_dist));
117 echo(str("HOLES IN PLY ctr dist from TILE ROUND edge = ",
118 tile_hard_edge_hole_dist + round_edge_rad));
120 thehd = [ tile_hard_edge_hole_dist, tile_hard_edge_hole_dist ];
122 thehd_tl = [ -thehd_tr[0], thehd_tr[1] ];
123 thehd_bl = -thehd_tr;
124 thehd_br = -thehd_tl;
126 interlock_rad = interlock_dia/2;
127 interlock_negative_rad = interlock_rad + 0.125;
129 interlock_sq_adj = 0.2; // arbitrary
131 first_front = machine_front_profile[len(machine_front_profile)-1];
136 cylinder(r= post_dia/2, h= tile_th + ply_th - post_shorter);
137 translate([0,0, tile_th]) {
138 cylinder(r= screw_big_dia/2, h= screw_big_len);
139 cylinder(r= screw_dia/2, h= ply_th, $fn=20);
143 tsz = tile_hard_edge_hole_dist - test_edge + 1;
144 translate([0,0, tile_th/2]) {
145 cube([post_dia, tsz*2, tile_th], center=true);
146 cube([tsz*2, post_dia, tile_th], center=true);
152 module Posts(posts) {
154 translate(concat(p, [0]))
159 module TileBase(botleft, topright){
160 size = topright - botleft;
161 botleft_post = botleft + thehd_tr;
162 topright_post = topright + thehd_bl;
165 translate(concat(botleft, [0]))
166 cube(concat(size, [tile_th]));
168 translate( concat(botleft_post, [ -tile_th ])
169 + 0.5 * [ post_dia, post_dia, 0 ] )
170 Commitid_BestCount_M( topright_post-botleft_post
171 + [-post_dia,-post_dia]
175 translate( concat(botleft + [thehd[0], 0], [0]) )
176 Commitid_BestCount([ size[0] - thehd[0]*2, thehd[1] ]);
179 translate(concat(botleft + [test_edge,test_edge], [test_tile_th]))
180 cube(concat(size - [test_edge,test_edge]*2, [tile_th]));
181 translate(concat(botleft_post, [-1]))
182 cube(concat(topright_post-botleft_post, [tile_th+2]));
186 cube(max(test_edge, tile_hard_edge_hole_dist)*2, center=true);
193 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars) { body; }
194 m4_define(`INREFFRAME',`
195 length_vec = ($2) - ($1);
196 length = dist2d([0,0], length_vec);
197 length_uvec = length_vec / length;
198 ortho_uvec = [ -length_uvec[1], length_uvec[0] ];
199 m = [ [ length_uvec[0], ortho_uvec[0], 0, ($1)[0], ],
200 [ length_uvec[1], ortho_uvec[1], 0, ($1)[1], ],
207 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars)
208 m4_dnl INREFFRAME_EDGE { body; }
209 m4_define(`INREFFRAME_EDGE',`
210 translate([0,0, -round_edge_rad])
213 module RoundEdge(left_cnr, right_cnr) {
214 INREFFRAME(left_cnr, right_cnr)
218 cylinder(r= round_edge_rad, h= length, $fn=50);
219 translate([-1, 0, -20])
220 cube([length+2, 20, 20]);
225 module RoundCornerCut(ci) {
226 // ci should be [this_cnr, right_cnr]
227 // where right_cnr is to the right (ie, anticlockwise)
230 offr= round_cnr_rad - round_edge_rad;
231 INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
233 cube(offr*2 - 0.1, center=true);
234 translate([offr, offr, 0])
235 cylinder(center=true, h=20, r= offr);
240 module RoundCornerAdd(ci) {
243 bigr = round_cnr_rad - round_edge_rad;
244 INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
246 cube(bigr*2 + 0.1, center=true);
247 translate([bigr, bigr, 0])
248 rotate_extrude(convexity=10, $fn=50)
251 circle(r= round_edge_rad, $fn=50);
259 module InterlockLobePlan(negative) {
260 r = negative ? interlock_negative_rad : interlock_rad;
261 ymir = negative ? 0 : 1;
265 translate([thehd[0], 0]){
269 translate([-dx, -0.1])
270 square([ dx*2, r/2 + 0.1 ]);
272 translate([ xi*dx, r ])
280 module InterlockEdgePlan(negative, nlobes, length, dosquare=true) {
281 for (lobei = [ 0 : nlobes-1 ]) {
282 lobex = (length - thehd[0]*2) * (lobei ? lobei / (nlobes-1) : 0);
283 translate([lobex, 0, 0]) {
284 InterlockLobePlan(negative);
290 slotshorter = negative ? -0.1 : interlock_fine_lenslop;
291 mirror([0, negative])
292 translate([slotshorter, iadj])
293 square([length - slotshorter*2, interlock_fine + iadj*2]);
297 module InterlockEdge(left_cnr, right_cnr, negative=0, nlobes=2) {
298 plusth = negative * 1.0;
299 protr = interlock_fine + interlock_sq_adj;
302 z1 = -tile_th/2 - protr / interlock_fine_slope;
303 z3 = -tile_th/2 + protr / interlock_fine_slope;
305 negsign = negative ? -1 : +1;
306 yprotr = negsign * protr;
308 INREFFRAME(left_cnr, right_cnr) {
309 for (vsect = [ // zs0 zs1 ys0, ys1
310 [ -tile_th-plusth, plusth, 0, 0],
311 [ z1, z2, 0, yprotr],
312 [ z2, z3, yprotr, 0],
322 [ 0,1, -sl, -ys0 + negsign*interlock_sq_adj ],
326 linear_extrude(height=zsd, convexity=10)
327 InterlockEdgePlan(negative, nlobes, length, !!ysd);
332 function TestPiece_holes2corners(holes) =
333 [ holes[0] + thehd_bl,
336 holes[0] + thehd_tl ];
338 module TestPiece1(){ ////toplevel
342 corners = TestPiece_holes2corners(holes);
343 rcs = [corners[0], corners[1]];
346 TileBase(corners[0], corners[2]);
348 RoundEdge(corners[0], corners[1]);
349 RoundEdge(corners[3], corners[0]);
351 InterlockEdge(corners[1], corners[2], 1, nlobes=1);
357 module TestPiece2(){ ////toplevel
361 corners = TestPiece_holes2corners(holes);
362 TileBase(corners[0], corners[2]);
364 RoundEdge(corners[0], corners[1]);
365 InterlockEdge(corners[3], corners[0], 0, nlobes=1);
368 module TestDemo(){ ////toplevel
369 translate([ -thehd[0], 0 ])
372 translate([ +thehd[0] + demo_slop, 0 ])
376 module Machine_Arm(){
377 ysz = cutout_l_end_y_total;
378 // assume the round end is arc of a circle
379 chordlen = dist2d([0,0], [ cutout_l_end_y, cutout_l_end_curve ]);
380 endrad = cutout_l_end_y / cutout_l_end_curve * chordlen;
382 translate([0,0,-30]) linear_extrude(height=60) {
383 translate(tile01_tr + [0, (-cutout_tile01_y + cutout_tile11_y)/2]) {
385 translate([-100, -ysz/2])
387 translate([ endrad - cutout_tile11_x - cutout_l_end_x_slop, 0 ])
388 circle(r=endrad, $fa=0.01,$fd=5);
394 module Machine_Profile(){
395 first_rear = machine_rear_profile[0];
396 below_point = 0.5 * ( first_rear + first_front ) + [ 0, -10 ];
397 pol = concat( machine_rear_profile,
399 machine_front_profile);
400 skew_angle = atan2( first_front[1] - first_rear[1],
401 first_front[0] - first_rear[0] );
402 echo(below_point, pol, skew_angle);
407 rotate([0,0, -skew_angle ]){
408 //translate( - first_front )
416 module Machine_RearProfile(){
419 translate([ -200 + machine_rear_to_front/2, -100 ]) {
425 module Machine_FrontProfile(){
428 translate([ machine_rear_to_front/2, -100 ]) {
434 module Machine_Curves(){ ////toplevel
435 translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
439 translate([ -reartablet_x,
443 cube([ reartablet_x+1,
447 translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
449 frontcurve_z_slop ]){
450 translate([ 0, -first_front[0] , 0 ])
451 multmatrix([[1, -frontcurve_side_skew, 0, 0],
455 translate([ 0, first_front[0] , 0 ])
457 rotate([0,-90,0])rotate([0,0,-90]){
458 linear_extrude(height= 200)
459 Machine_FrontProfile();
462 translate([ rearcurve_strt_len,
469 rotate([0,-90,0])rotate([0,0,-90]){
470 linear_extrude(height= rearcurve_strt_len + 1)
471 Machine_RearProfile();
476 rearcurve_double_inrad ]) {
479 rotate_extrude(convexity=10, $fn=32) {
480 rotate([0,0,90]) translate([ 0,
481 -rearcurve_double_inrad ]) {
482 Machine_RearProfile();
487 translate([0,-75,0]) cube([150,150,150]);
494 module Machine(){ ////toplevel
499 function Rectangle_corners(c0, sz) =
500 // returns the corners of a rectangle from c0 to c0+sz
501 // if sz is positive, the corners are anticlockwise starting with c0
504 c0 + [ sz[0], sz[1] ],
507 function Rectangle_corners2posts(c) =
513 module Rectangle_TileBase(c) { TileBase(c[0], c[2]); }
515 function Posts_interpolate_one(c0,c1) = [c0, (c0+c1)/2, c1];
518 m4_dnl c is from Rectangle_corners and
519 m4_dnl ix is a corner number
520 m4_dnl expands to two comma-separated corners:
521 m4_dnl that denoted by ix, and the next one anticlockwise
522 m4_define(`R_EDGE',`$1[$2],$1[(($2)+1)%4]')
524 module Tile02(){ ////toplevel
526 c0 = tile02_tr + -sz;
527 c = Rectangle_corners(c0, sz);
528 posts = Rectangle_corners2posts(c);
532 Rectangle_TileBase(c);
534 RoundEdge(R_EDGE(c,0));
535 RoundEdge(R_EDGE(c,3));
536 InterlockEdge(R_EDGE(c,2), 0);
538 InterlockEdge(R_EDGE(c,1), 1);
544 module Tile12(){ ////toplevel
546 c0 = tile02_tr + [-sz[0], 0];
547 c = Rectangle_corners(c0, sz);
548 posts = Rectangle_corners2posts(c);
552 Rectangle_TileBase(c);
554 RoundEdge(R_EDGE(c,2));
555 RoundEdge(R_EDGE(c,3));
557 InterlockEdge(R_EDGE(c,0), 1);
558 InterlockEdge(R_EDGE(c,1), 1);
564 tile_01_11_cnr = tile01_tr + [-cutout_tile11_x, 0];
565 tile_11_10_cnr = tile01_tr + [0, cutout_tile11_y];
566 tile_01_00_cnr = tile01_tr - [0, cutout_tile01_y];
568 module Tile11(){ ////toplevel
570 c0 = tile01_tr + [-sz[0],0];
571 c = Rectangle_corners(c0, sz);
572 cnr_posts = Rectangle_corners2posts(c);
574 Posts_interpolate_one(cnr_posts[0],
575 cnr_posts[1] - [cutout_tile11_x, 0]),
576 [ cnr_posts[1] + [0, cutout_tile11_y],
582 Rectangle_TileBase(c);
584 RoundEdge(R_EDGE(c,2));
585 InterlockEdge(R_EDGE(c,3));
587 InterlockEdge(c[0], tile_01_11_cnr, 1);
588 InterlockEdge(tile_11_10_cnr, c[2], 1);
593 module Tile01(){ ////toplevel
595 c0 = tile01_tr + -sz;
596 c = Rectangle_corners(c0, sz);
597 cnr_posts = Rectangle_corners2posts(c);
599 Posts_interpolate_one(R_EDGE(cnr_posts,0)),
600 [ cnr_posts[2] + [0, -cutout_tile01_y] ],
601 Posts_interpolate_one(cnr_posts[2] - [cutout_tile11_x, 0],
606 Rectangle_TileBase(c);
608 RoundEdge(R_EDGE(c,0));
609 InterlockEdge(tile_01_11_cnr, c[3]);
610 InterlockEdge(R_EDGE(c,3));
612 InterlockEdge(c[1], tile_01_00_cnr, 1);
617 module Tile10(){ ////toplevel
619 c0 = tile01_tr + [0,0];
620 c = Rectangle_corners(c0, sz);
621 cnr_posts = Rectangle_corners2posts(c);
622 cty = cutout_tile11_y;
623 rcy = cty + rearcurve_avoid_y;
624 posts = [ cnr_posts[0] + [ 0, cty ],
625 cnr_posts[1] + [ -sz[0] + rearedge_len - cutout_l_end_x, cty ],
626 cnr_posts[1] + [ 0, rcy ],
632 Rectangle_TileBase(c);
634 RoundEdge(R_EDGE(c,1));
635 RoundEdge(R_EDGE(c,2));
636 InterlockEdge(c[3], tile_11_10_cnr);
644 module Tile00(){ ////toplevel
646 c0 = tile01_tr + [0,-sz[1]];
647 c = Rectangle_corners(c0, sz);
648 cnr_posts = Rectangle_corners2posts(c);
649 cty = cutout_tile01_y;
650 rcy = cty + frontcurve_avoid_y;
651 posts = [ cnr_posts[0],
653 cnr_posts[2] + [ 0, -rcy ],
654 cnr_posts[2] + [ -sz[0] + rearedge_len - cutout_l_end_x, -cty ],
655 cnr_posts[3] + [ 0, -cty ]
660 Rectangle_TileBase(c);
662 RoundEdge(R_EDGE(c,0));
663 RoundEdge(R_EDGE(c,1));
664 InterlockEdge(tile_01_00_cnr, c[0]);
672 module Demo(){ ////toplevel
673 translate(demo_slop*[-2,1]) color("blue") Tile12();
674 translate(demo_slop*[-2,0]) color("red") Tile02();
675 translate(demo_slop*[-2,1]) color("orange") Tile11();
676 translate(demo_slop*[-2,0]) color("purple") Tile01();
677 translate(demo_slop*[-3,1]) color("blue") Tile10();
678 translate(demo_slop*[-3,0]) color("red") Tile00();
687 //Machine_RearProfile();