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;
103 frontcurve_strt_len = 60;
104 frontcurve_dualcurve_angle = 90 - 65;
110 ply_edge_hole_dist = ply_edge_min + ply_hole_dia/2;
112 echo(str("HOLES IN PLY ctr dist from PLY edge = ", ply_edge_hole_dist));
114 hole_slop = (ply_hole_dia - post_dia)/2;
115 tile_hard_edge_hole_dist = ply_edge_hole_dist + hole_slop;
117 echo(str("HOLES IN PLY ctr dist from TILE HARD edge = ",
118 tile_hard_edge_hole_dist));
120 echo(str("HOLES IN PLY ctr dist from TILE ROUND edge = ",
121 tile_hard_edge_hole_dist + round_edge_rad));
123 thehd = [ tile_hard_edge_hole_dist, tile_hard_edge_hole_dist ];
125 thehd_tl = [ -thehd_tr[0], thehd_tr[1] ];
126 thehd_bl = -thehd_tr;
127 thehd_br = -thehd_tl;
129 tablet_z_slop = rearcurve_z_slop;
131 interlock_rad = interlock_dia/2;
132 interlock_negative_rad = interlock_rad + 0.125;
134 interlock_sq_adj = 0.2; // arbitrary
136 first_front = machine_front_profile[len(machine_front_profile)-1];
138 m4_define(`POST_TCROSSSZ',
139 `2*( tile_hard_edge_hole_dist - test_edge + 1 )')
144 cylinder(r= post_dia/2, h= tile_th + ply_th - post_shorter);
145 translate([0,0, tile_th]) {
146 cylinder(r= screw_big_dia/2, h= screw_big_len);
147 cylinder(r= screw_dia/2, h= ply_th, $fn=20);
151 translate([0,0, tile_th/2]) {
152 cube([post_dia, POST_TCROSSSZ, tile_th], center=true);
153 cube([POST_TCROSSSZ, post_dia, tile_th], center=true);
159 module Posts(posts) {
161 translate(concat(p, [0]))
166 module TileBase(botleft, topright){
167 size = topright - botleft;
168 botleft_post = botleft + thehd_tr;
169 topright_post = topright + thehd_bl;
172 translate(concat(botleft, [0]))
173 cube(concat(size, [tile_th]));
175 cidsz = topright_post-botleft_post
176 + [-post_dia,-post_dia]
178 cidszr = [ min(cidsz[0],50), min(cidsz[1],50) ];
179 echo("CID",cidsz,cidszr);
180 translate( concat(botleft_post, [ -tile_th ])
181 + 0.5 * [ post_dia, post_dia, 0 ]
182 + 0.5 * concat( cidsz - cidszr, [ 0 ]) )
183 Commitid_BestCount_M(cidszr);
186 crossoff = tile_hard_edge_hole_dist + POST_TCROSSSZ/2;
187 cidsz = [ thehd[0], size[1] - 2*crossoff ];
188 cidszr = [ cidsz[0], min(cidsz[1], 50) ];
189 translate( concat(botleft + [0, crossoff] + (cidsz-cidszr)/2, [0]) )
190 Commitid_BestCount(cidszr);
193 translate(concat(botleft + [test_edge,test_edge], [test_tile_th]))
194 cube(concat(size - [test_edge,test_edge]*2, [tile_th]));
195 translate(concat(botleft_post, [-1]))
196 cube(concat(topright_post-botleft_post, [tile_th+2]));
198 shufflesz = max(test_edge, tile_hard_edge_hole_dist)*2;
201 cube(shufflesz, center=true);
208 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars) { body; }
209 m4_define(`INREFFRAME',`
210 length_vec = ($2) - ($1);
211 length = dist2d([0,0], length_vec);
212 length_uvec = length_vec / length;
213 ortho_uvec = [ -length_uvec[1], length_uvec[0] ];
214 m = [ [ length_uvec[0], ortho_uvec[0], 0, ($1)[0], ],
215 [ length_uvec[1], ortho_uvec[1], 0, ($1)[1], ],
222 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars)
223 m4_dnl INREFFRAME_EDGE { body; }
224 m4_define(`INREFFRAME_EDGE',`
225 translate([0,0, -round_edge_rad])
228 module RoundEdge(left_cnr, right_cnr) {
229 INREFFRAME(left_cnr, right_cnr)
233 cylinder(r= round_edge_rad, h= length, $fn=50);
234 translate([-1, 0, -20])
235 cube([length+2, 20, 20]);
240 m4_define(`ROUNDCORNER_VARS',`
244 bigr= round_cnr_rad - round_edge_rad
247 module RoundCorner_selector(ci, adj) {
249 cube(bigr*2 + adj, center=true);
252 module RoundCornerCut(ci) {
253 // ci should be [this_cnr, right_cnr, left_cnr]
254 // where right_cnr is to the right (ie, anticlockwise)
256 INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
258 RoundCorner_selector(ci, -0.1);
259 translate([bigr, bigr, 0])
260 cylinder(center=true, h=20, r= bigr);
265 module RoundCornerAdd(ci) {
267 INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
269 RoundCorner_selector(ci, +0.1);
270 translate([bigr, bigr, 0])
271 rotate_extrude(convexity=10, $fn=50)
274 circle(r= round_edge_rad, $fn=50);
282 module InterlockLobePlan(negative) {
283 r = negative ? interlock_negative_rad : interlock_rad;
284 ymir = negative ? 0 : 1;
288 translate([thehd[0], 0]){
292 translate([-dx, -0.1])
293 square([ dx*2, r/2 + 0.1 ]);
295 translate([ xi*dx, r ])
303 module InterlockEdgePlan(negative, nlobes, length, dosquare=true) {
304 for (lobei = [ 0 : nlobes-1 ]) {
305 lobex = (length - thehd[0]*2) * (lobei ? lobei / (nlobes-1) : 0);
306 translate([lobex, 0, 0]) {
307 InterlockLobePlan(negative);
313 slotshorter = negative ? -0.1 : interlock_fine_lenslop;
314 mirror([0, negative])
315 translate([slotshorter, iadj])
316 square([length - slotshorter*2, interlock_fine + iadj*2]);
320 module InterlockEdge(left_cnr, right_cnr, negative=0, nlobes=2) {
321 plusth = negative * 1.0;
322 protr = interlock_fine + interlock_sq_adj;
325 z1 = -tile_th/2 - protr / interlock_fine_slope;
326 z3 = -tile_th/2 + protr / interlock_fine_slope;
328 negsign = negative ? -1 : +1;
329 yprotr = negsign * protr;
331 INREFFRAME(left_cnr, right_cnr) {
332 for (vsect = [ // zs0 zs1 ys0, ys1
333 [ -tile_th-plusth, plusth, 0, 0],
334 [ z1, z2, 0, yprotr],
335 [ z2, z3, yprotr, 0],
345 [ 0,1, -sl, -ys0 + negsign*interlock_sq_adj ],
349 linear_extrude(height=zsd, convexity=10)
350 InterlockEdgePlan(negative, nlobes, length, !!ysd);
355 function TestPiece_holes2corners(holes) =
356 [ holes[0] + thehd_bl,
359 holes[0] + thehd_tl ];
361 module TestPiece1(){ ////toplevel
365 corners = TestPiece_holes2corners(holes);
366 rcs = [corners[0], corners[1]];
369 TileBase(corners[0], corners[2]);
371 RoundEdge(corners[0], corners[1]);
372 RoundEdge(corners[3], corners[0]);
374 InterlockEdge(corners[1], corners[2], 1, nlobes=1);
380 module TestPiece2(){ ////toplevel
384 corners = TestPiece_holes2corners(holes);
385 TileBase(corners[0], corners[2]);
387 RoundEdge(corners[0], corners[1]);
388 InterlockEdge(corners[3], corners[0], 0, nlobes=1);
391 module TestDemo(){ ////toplevel
392 translate([ -thehd[0], 0 ])
395 translate([ +thehd[0] + demo_slop, 0 ])
399 module Machine_Arm(){
400 ysz = cutout_l_end_y_total;
401 // assume the round end is arc of a circle
402 chordlen = dist2d([0,0], [ cutout_l_end_y, cutout_l_end_curve ]);
403 endrad = cutout_l_end_y / cutout_l_end_curve * chordlen;
405 translate([0,0,-30]) linear_extrude(height=60) {
406 translate(tile01_tr + [0, (-cutout_tile01_y + cutout_tile11_y)/2]) {
408 translate([-50, -ysz/2])
410 translate([ endrad - cutout_tile11_x - cutout_l_end_x_slop, 0 ])
411 circle(r=endrad, $fa=0.01,$fd=5);
417 module Machine_Profile(){
418 first_rear = machine_rear_profile[0];
419 below_point = 0.5 * ( first_rear + first_front ) + [ 0, -10 ];
420 pol = concat( machine_rear_profile,
422 machine_front_profile);
423 skew_angle = atan2( first_front[1] - first_rear[1],
424 first_front[0] - first_rear[0] );
425 //echo(below_point, pol, skew_angle);
430 rotate([0,0, -skew_angle ]){
431 //translate( - first_front )
439 module Machine_NewRearProfile(){
440 // figures copied out of xfig edit boxes
441 // best not to edit the posbox size if poss - just move it
442 posbox = 10 * ([7.2333,-14.1267] - [-16.2289,40.0289]); // box, Green
443 sideline = -10 * ([-6.2400,13.5600] - [-2.4467,28.2556]); // line, Blue
444 scaleline = 10 * dist2d([-1.1911,-20.4800], [-11.2600,4.0578]); // Green2
445 scaleline_mm = 12+5+10+5+3;
446 sh = -[abs(posbox[0]), abs(posbox[1])];
447 rot = atan2(-sideline[0], sideline[1]);
448 sc = scaleline_mm / scaleline;
449 //echo("SH",sh,rot,sc);
450 scale(sc) rotate(rot) translate(sh){
451 import("sewing-table-rear-profile.dxf", convexity=10); // spline, Pink3
455 module Machine_NewRearCurve(){
456 slant = atan2(4,210-10);
458 translate([0,0, rearcurve_double_inrad]) rotate([slant,0,0]){
459 translate([ rearcurve_double_inrad,
461 -rearcurve_double_inrad + 10 ]){
462 rotate([180,0,0]) rotate([0,0,90]) linear_extrude(height=30){
464 Machine_NewRearProfile();
465 translate([0,-100]) Machine_NewRearProfile();
469 rotate([0,90,0]) rotate([90,0,0]) {
471 rotate_extrude(convexity=10, $fn=64)
473 translate([ 0, -rearcurve_double_inrad ])
474 Machine_NewRearProfile();
475 translate([0,0,-500])
476 cube([500,500,1000]);
479 translate([1,0,-rearcurve_double_inrad])
480 rotate([0,-90,0]) rotate([0,0,-90])
481 linear_extrude(height= rearcurve_strt_len + 1)
482 Machine_NewRearProfile();
486 module Machine_RearProfile(){ ////toplevel
489 translate([ -200 + machine_rear_to_front/2, -100 ]) {
495 module Machine_FrontProfile(){
498 translate([ machine_rear_to_front/2, -100 ]) {
504 module Machine_Curves(){ ////toplevel
505 translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
509 translate([ -reartablet_x,
511 -reartablet_z + tablet_z_slop])
513 cube([ reartablet_x+1,
517 translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
519 frontcurve_z_slop ]){
520 translate([ 0, -first_front[0] , 0 ])
521 multmatrix([[1, -frontcurve_side_skew, 0, 0],
525 translate([ 0, first_front[0] , 0 ])
527 rotate([0,-90,0])rotate([0,0,-90]){
528 linear_extrude(height= 200)
529 Machine_FrontProfile();
532 translate([ rearcurve_strt_len,
535 Machine_NewRearCurve();
540 module Machine(){ ////toplevel
545 module MachineEnvelope(){
547 p_arm_bl = [-cutout_tile11_x, -cutout_tile01_y];
548 y_arm_t = cutout_tile11_y;
549 p_crv_fl = p_arm_bl + [rearedge_len, -frontcurve_avoid_y];
550 y_crv_b = y_arm_t + rearcurve_avoid_y;
552 translate([0,0,-50]) linear_extrude(height= 100){
553 translate(p_arm_bl) square([400, y_arm_t] - p_arm_bl);
554 translate(p_crv_fl) square([400, y_crv_b] - p_crv_fl);
558 function Rectangle_corners(c0, sz) =
559 // returns the corners of a rectangle from c0 to c0+sz
560 // if sz is positive, the corners are anticlockwise starting with c0
563 c0 + [ sz[0], sz[1] ],
566 function Rectangle_corners2posts(c) =
572 module Rectangle_TileBase(c) { TileBase(c[0], c[2]); }
574 function Posts_interpolate_one(c0,c1) = [c0, (c0+c1)/2, c1];
577 m4_dnl c is from Rectangle_corners and
578 m4_dnl ix is a corner number
579 m4_dnl expands to two comma-separated corners:
580 m4_dnl that denoted by ix, and the next one anticlockwise
581 m4_define(`R_EDGE',`$1[$2],$1[(($2)+1)%4]')
583 module FitTest_general(c0,sz, dobrace=false){
584 c = Rectangle_corners(c0, sz);
588 Rectangle_TileBase(c);
590 translate(concat(c0, [-brace[2] + 0.1])){
592 cube(concat(sz,[brace[2]]) - [5,0,0]);
593 translate(brace + [0,0, -25])
594 cube(concat(sz, [50]) - brace*2 + [10,0,0]);
598 RoundEdge(R_EDGE(c,1));
604 module FitTest_Entire(){ ////toplevel
605 FitTest_general([-40,-80], [275,180], dobrace=true);
608 module FitTest_RearCurve(){ ////toplevel
609 FitTest_general([110,0], [170,100]);
612 module Tile02(){ ////toplevel
614 c0 = tile02_tr + -sz;
615 c = Rectangle_corners(c0, sz);
616 posts = Rectangle_corners2posts(c);
620 Rectangle_TileBase(c);
622 RoundEdge(R_EDGE(c,0));
623 RoundEdge(R_EDGE(c,3));
624 InterlockEdge(R_EDGE(c,2), 0);
626 InterlockEdge(R_EDGE(c,1), 1);
632 module Tile12(){ ////toplevel
634 c0 = tile02_tr + [-sz[0], 0];
635 c = Rectangle_corners(c0, sz);
636 posts = Rectangle_corners2posts(c);
640 Rectangle_TileBase(c);
642 RoundEdge(R_EDGE(c,2));
643 RoundEdge(R_EDGE(c,3));
645 InterlockEdge(R_EDGE(c,0), 1);
646 InterlockEdge(R_EDGE(c,1), 1);
652 tile_01_11_cnr = tile01_tr + [-cutout_tile11_x, 0];
653 tile_11_10_cnr = tile01_tr + [0, cutout_tile11_y];
654 tile_01_00_cnr = tile01_tr - [0, cutout_tile01_y];
656 module Tile11(){ ////toplevel
658 c0 = tile01_tr + [-sz[0],0];
659 c = Rectangle_corners(c0, sz);
660 cnr_posts = Rectangle_corners2posts(c);
662 Posts_interpolate_one(cnr_posts[0],
663 cnr_posts[1] - [cutout_tile11_x, 0]),
664 [ cnr_posts[1] + [0, cutout_tile11_y],
670 Rectangle_TileBase(c);
672 RoundEdge(R_EDGE(c,2));
673 InterlockEdge(R_EDGE(c,3));
675 InterlockEdge(c[0], tile_01_11_cnr, 1);
676 InterlockEdge(tile_11_10_cnr, c[2], 1);
681 module Tile01(){ ////toplevel
683 c0 = tile01_tr + -sz;
684 c = Rectangle_corners(c0, sz);
685 cnr_posts = Rectangle_corners2posts(c);
687 Posts_interpolate_one(R_EDGE(cnr_posts,0)),
688 [ cnr_posts[2] + [0, -cutout_tile01_y] ],
689 Posts_interpolate_one(cnr_posts[2] - [cutout_tile11_x, 0],
694 Rectangle_TileBase(c);
696 RoundEdge(R_EDGE(c,0));
697 InterlockEdge(tile_01_11_cnr, c[3]);
698 InterlockEdge(R_EDGE(c,3));
700 InterlockEdge(c[1], tile_01_00_cnr, 1);
705 module Tile10(){ ////toplevel
707 c0 = tile01_tr + [0,0];
708 c = Rectangle_corners(c0, sz);
709 cnr_posts = Rectangle_corners2posts(c);
710 cty = cutout_tile11_y;
711 rcy = cty + rearcurve_avoid_y;
712 posts = [ cnr_posts[0] + [ 0, cty ],
713 cnr_posts[1] + [ -sz[0] + rearedge_len - cutout_l_end_x, cty ],
714 cnr_posts[1] + [ 0, rcy ],
720 Rectangle_TileBase(c);
722 RoundEdge(R_EDGE(c,1));
723 RoundEdge(R_EDGE(c,2));
724 InterlockEdge(c[3], tile_11_10_cnr);
732 module Tile00(){ ////toplevel
734 c0 = tile01_tr + [0,-sz[1]];
735 c = Rectangle_corners(c0, sz);
737 // the edge c[1]..c[2] needs a diagonal chunk, from c1bis to c2bis
738 c2bis = [ -cutout_l_end_x + rearedge_len + frontcurve_strt_len, c[2][1] ];
741 (c[2][0] - c2bis[0]) * tan(90 - frontcurve_dualcurve_angle) ];
743 cnr_posts = Rectangle_corners2posts(c);
744 cty = cutout_tile01_y;
745 rcy = cty + frontcurve_avoid_y;
746 posts = [ cnr_posts[0],
748 cnr_posts[2] + [ 0, -rcy ],
749 cnr_posts[2] + [ -sz[0] + rearedge_len - cutout_l_end_x, -cty ],
750 cnr_posts[3] + [ 0, -cty ]
757 Rectangle_TileBase(c);
759 RoundEdge(R_EDGE(c,0));
760 RoundEdge(c[1], c1bis);
761 InterlockEdge(tile_01_00_cnr, c[0]);
764 translate([0,0,-20]) linear_extrude(height=40) {
765 polygon([ c1bis, c1bis + [50,0], c2bis + [50,0], c2bis ]);
768 RoundEdge(c1bis, c2bis);
773 RoundCornerAdd([c1bis,c2bis,c[1]]);
776 module FitTest_FrontCurve(){ ////toplevel
781 translate([0,0,-8]) linear_extrude(height=18) {
782 translate(p0) square(sz);
787 module RoundCornerDemo_plat(cnr){
788 mirror([0,0,1]) linear_extrude(height=1) polygon(cnr);
791 module RoundCornerDemo(){ ////toplevel
792 cnr = [ [0,0], [15,0], [-10,10] ];
793 translate([0,25,0]) RoundCornerDemo_plat(cnr);
794 translate([25,0,0]) RoundCornerAdd(cnr);
795 translate([-25,0,0]) RoundCornerCut(cnr);
797 RoundCornerDemo_plat(cnr);
803 module Demo(){ ////toplevel
804 translate(demo_slop*[-2,1]) color("blue") Tile12();
805 translate(demo_slop*[-2,0]) color("red") Tile02();
806 translate(demo_slop*[-2,1]) color("orange") Tile11();
807 translate(demo_slop*[-2,0]) color("purple") Tile01();
808 translate(demo_slop*[-3,1]) color("blue") Tile10();
809 translate(demo_slop*[-3,0]) color("red") Tile00();
818 //Machine_NewRearProfile();
819 //Machine_NewRearCurve();