4 include <commitid.scad>
10 ply_hole_dia_real = 12;
26 interlock_fine = 0.66;
28 interlock_fine_slope = 1.0;
29 interlock_fine_lenslop = 1.0;
41 machine_rear_to_front = 84 + 0.25 - 1.4;
43 cutout_l_end_y_front_slop = 0.5;
44 cutout_l_end_y_rear_slop = 0.5;
47 cutout_l_end_y = machine_rear_to_front;
48 cutout_l_end_new_x_slop = 1.4 - 1.95;
49 cutout_l_end_y_total = cutout_l_end_y
50 + cutout_l_end_y_front_slop + cutout_l_end_y_rear_slop;
52 tile02_tr = [-250, 0];
55 cutout_tile01_y = 170 - 147 + cutout_l_end_y_front_slop;
56 cutout_tile11_y = cutout_l_end_y_total - cutout_tile01_y;
58 // front and rear curves
60 rearedge_len = 170 + 0.70;
63 rearcurve_strt_len = 52;
65 rearcurve_z_slop = -0.50;
67 rearcurve_avoid_y = 35;
69 rearcurve_double_inrad = 26.10 + 8.04;
75 frontcurve_side_skew = 3.5 / 72;
76 frontcurve_avoid_y = 70;
77 frontcurve_z_slop = 0.75;
79 frontcurve_strt_len = 50;
80 frontcurve_dualcurve_angle = 30;
82 teststrapslots_at = [ [ 110, 70 ], [ 110, -35 ],
84 [ 190, -80 ], // do not change index of this one
85 [ 0, 70 ], [ 0, -35 ],
89 teststrap_peg = [7.5, 3.5];
91 ply_edge_hole_dist_real = 14;
98 ply_edge_hole_dist = ply_edge_min + ply_hole_dia/2;
100 echo(str("HOLES IN PLY ctr dist from PLY edge = ", ply_edge_hole_dist));
102 hole_slop = (ply_hole_dia - post_dia)/2;
103 tile_hard_edge_hole_dist = ply_edge_hole_dist + hole_slop;
105 echo(str("HOLES IN PLY ctr dist from TILE HARD edge = ",
106 tile_hard_edge_hole_dist));
108 echo(str("HOLES IN PLY ctr dist from TILE ROUND edge = ",
109 tile_hard_edge_hole_dist + round_edge_rad));
111 thehd = [ tile_hard_edge_hole_dist, tile_hard_edge_hole_dist ];
113 thehd_tl = [ -thehd_tr[0], thehd_tr[1] ];
114 thehd_bl = -thehd_tr;
115 thehd_br = -thehd_tl;
117 tablet_z_slop = 1.00;
119 interlock_rad = interlock_dia/2;
120 interlock_negative_rad = interlock_rad + 0.125;
122 interlock_sq_adj = 0.2; // arbitrary
124 m4_define(`POST_TCROSSSZ',
125 `2*( tile_hard_edge_hole_dist - test_edge + 1 )')
131 cylinder(r= post_dia/2, h= tile_th + ply_th - post_shorter);
132 translate([0,0, tile_th]) {
133 cylinder(r= screw_big_dia/2, h= screw_big_len);
134 cylinder(r= screw_dia/2, h= ply_th, $fn=20);
139 translate([0,0, tile_th/2]) {
140 cube([post_dia, POST_TCROSSSZ, tile_th], center=true);
141 cube([POST_TCROSSSZ, post_dia, tile_th], center=true);
145 translate([0,0, tile_th/2]) {
146 cube([POST_TCROSSSZ, POST_TCROSSSZ, tile_th], center=true);
155 cylinder(r= post_dia/2 + jig_post_hole_slop, h=10);
156 translate([0,0, -jig_min_th])
157 cylinder(r= ply_hole_dia_real/2, h = 5);
158 for (rot=[0:90:270]) rotate(rot) {
159 translate([ ply_edge_hole_dist_real, 0, 0 ])
160 cube([ jig_pencil_rad*2, jig_pencil_slotlen, 20 ], center=true);
165 module Posts(posts) {
167 translate(concat(p, [0]))
171 module PostHoles(posts) {
173 translate(concat(p, [0]))
178 module TileBase(botleft, topright){
179 size = topright - botleft;
180 botleft_post = botleft + thehd_tr;
181 topright_post = topright + thehd_bl;
184 translate(concat(botleft, [0]))
185 cube(concat(size, [tile_th]));
186 if (!(TEST || JIG)) {
187 cidsz = topright_post-botleft_post
188 + [-post_dia,-post_dia]
190 cidszr = [ min(cidsz[0],50), min(cidsz[1],50) ];
191 echo("CID",cidsz,cidszr);
192 translate( concat(botleft_post, [ -tile_th ])
193 + 0.5 * [ post_dia, post_dia, 0 ]
194 + 0.5 * concat( cidsz - cidszr, [ 0 ]) )
195 Commitid_BestCount_M(cidszr);
198 crossoff = tile_hard_edge_hole_dist + POST_TCROSSSZ/2;
199 cidsz = [ thehd[0], size[1] - 2*crossoff ];
200 cidszr = [ cidsz[0], min(cidsz[1], 50) ];
202 translate( concat(botleft + [0, crossoff] + (cidsz-cidszr)/2, [0]) )
203 Commitid_BestCount(cidszr);
206 translate(concat(botleft + [test_edge,test_edge], [test_tile_th]))
207 cube(concat(size - [test_edge,test_edge]*2, [tile_th*2]));
208 translate(concat(botleft_post, [-1]))
209 cube(concat(topright_post-botleft_post, [tile_th+2]));
211 shufflesz = max(test_edge, tile_hard_edge_hole_dist)*2;
214 cube(shufflesz, center=true);
217 translate([0,0,-20]) linear_extrude(height=20) {
218 for (diag=[[ +1, botleft ],
219 [ -1, [topright[0], botleft[1]] ]]) {
221 rotate(atan2(size[1], diag[0] * size[0]))
222 translate([0, -test_edge/2])
223 square([vectorlen2d(size), test_edge]);
233 m4_dnl c is from Rectangle_corners and
234 m4_dnl ix is a corner number
235 m4_dnl expands to two comma-separated corners:
236 m4_dnl that denoted by ix, and the next one anticlockwise
237 m4_define(`R_EDGE',`$1[$2], $1[(($2)+1)%4]')
240 m4_dnl c is from Rectangle_corners and
241 m4_dnl ix is a corner number
242 m4_dnl expands to an array of corners as for RoundCorner
243 m4_define(`R_CNR',`[ $1[$2], $1[(($2)+1)%4], $1[(($2)+3)%4] ]')
245 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars) { body; }
246 m4_define(`INREFFRAME',`
247 length_vec = ($2) - ($1);
248 length = dist2d([0,0], length_vec);
249 length_uvec = length_vec / length;
250 ortho_uvec = [ -length_uvec[1], length_uvec[0] ];
251 m = [ [ length_uvec[0], ortho_uvec[0], 0, ($1)[0], ],
252 [ length_uvec[1], ortho_uvec[1], 0, ($1)[1], ],
259 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars)
260 m4_dnl INREFFRAME_EDGE { body; }
261 m4_define(`INREFFRAME_EDGE',`
262 translate([0,0, -round_edge_rad])
265 module RoundEdge(left_cnr, right_cnr) {
266 INREFFRAME(left_cnr, right_cnr)
270 cylinder(r= round_edge_rad, h= length, $fn=50);
271 translate([-1, 0, -20])
272 cube([length+2, 20, 20]);
277 m4_define(`ROUNDCORNER_VARS',`
281 bigr= round_cnr_rad - round_edge_rad;
282 l_uvec = unitvector2d(left_cnr - this_cnr);
283 r_uvec = unitvector2d(right_cnr - this_cnr);
284 lp1 = left_cnr + clockwise2d(l_uvec) * bigr;
285 lp2 = this_cnr + clockwise2d(l_uvec) * bigr;
286 lp3 = this_cnr - clockwise2d(r_uvec) * bigr;
287 lp4 = right_cnr - clockwise2d(r_uvec) * bigr;
288 ctr = line_intersection_2d(lp1,lp2,lp3,lp4);
289 ctr3 = concat(ctr,[0])
292 module RoundCorner_selector(ci, adj) {
296 INREFFRAME(ctr3,concat(lp1,[4])){
297 translate([0,0,-bigr]) linear_extrude(height=bigr*2) {
298 translate([-bigr*2 + adj, -bigr])
299 square([bigr*2, bigr*3]);
304 INREFFRAME(ctr3,concat(lp4,[0])){
305 translate([0,0,-bigr]) linear_extrude(height=bigr*2) {
306 translate([-bigr*2, -bigr*2])
307 square([bigr*2 + adj, bigr*3]);
314 module RoundCornerCut(ci) {
315 // ci should be [this_cnr, right_cnr, left_cnr]
316 // where right_cnr is to the right (ie, anticlockwise)
319 RoundCorner_selector(ci, -0.1);
321 cylinder(center=true, h=20, r= bigr);
325 module RoundCornerAdd(ci) {
328 RoundCorner_selector(ci, +0.1);
331 rotate_extrude(convexity=10, $fn=50)
334 circle(r= round_edge_rad, $fn=50);
343 module InterlockLobePlan(negative) {
344 r = negative ? interlock_negative_rad : interlock_rad;
345 ymir = negative ? 0 : 1;
349 translate([thehd[0], 0]){
353 translate([-dx, -0.1])
354 square([ dx*2, r/2 + 0.1 ]);
356 translate([ xi*dx, r ])
364 module InterlockEdgePlan(negative, nlobes, length, dosquare=true) {
365 for (lobei = [ 0 : nlobes-1 ]) {
366 lobex = (length - thehd[0]*2) * (lobei ? lobei / (nlobes-1) : 0);
367 translate([lobex, 0, 0]) {
368 InterlockLobePlan(negative);
374 slotshorter = negative ? -0.1 : interlock_fine_lenslop;
375 mirror([0, negative])
376 translate([slotshorter, iadj])
377 square([length - slotshorter*2, interlock_fine + iadj*2]);
381 module InterlockEdge(left_cnr, right_cnr, negative=0, nlobes=2) {
382 plusth = negative * 1.0;
383 protr = interlock_fine + interlock_sq_adj;
386 z1 = -tile_th/2 - protr / interlock_fine_slope;
387 z3 = -tile_th/2 + protr / interlock_fine_slope;
389 negsign = negative ? -1 : +1;
390 yprotr = negsign * protr;
392 INREFFRAME(left_cnr, right_cnr) {
393 for (vsect = [ // zs0 zs1 ys0, ys1
394 [ -tile_th-plusth, plusth, 0, 0],
395 [ z1, z2, 0, yprotr],
396 [ z2, z3, yprotr, 0],
406 [ 0,1, -sl, -ys0 + negsign*interlock_sq_adj ],
410 linear_extrude(height=zsd, convexity=10)
411 InterlockEdgePlan(negative, nlobes, length, !!ysd);
416 function TestPiece_holes2corners(holes) =
417 [ holes[0] + thehd_bl,
420 holes[0] + thehd_tl ];
422 module TestPiece1(){ ////toplevel
426 corners = TestPiece_holes2corners(holes);
427 rcs = R_CNR(corners,0);
430 TileBase(corners[0], corners[2]);
432 RoundEdge(corners[0], corners[1]);
433 RoundEdge(corners[3], corners[0]);
435 InterlockEdge(corners[1], corners[2], 1, nlobes=1);
442 module TestPiece2(){ ////toplevel
446 corners = TestPiece_holes2corners(holes);
449 TileBase(corners[0], corners[2]);
451 RoundEdge(corners[0], corners[1]);
452 InterlockEdge(corners[3], corners[0], 0, nlobes=1);
458 module TestDemo(){ ////toplevel
459 translate([ -thehd[0], 0 ])
462 translate([ +thehd[0] + demo_slop, 0 ])
466 module Machine_NewRearProfile(){
467 // figures copied out of xfig edit boxes
468 // best not to edit the posbox size if poss - just move it
469 posbox = 10 * ([7.2333,-14.1267] - [-16.2289,40.0289]); // box, Green
470 sideline = -10 * ([-6.2400,13.5600] - [-2.4467,28.2556]); // line, Blue
471 scaleline = 10 * dist2d([-1.1911,-20.4800], [-11.2600,4.0578]); // Green2
472 scaleline_mm = 12+5+10+5+3;
473 sh = -[abs(posbox[0]), abs(posbox[1])];
474 rot = atan2(-sideline[0], sideline[1]);
475 sc = scaleline_mm / scaleline;
476 //echo("SH",sh,rot,sc);
477 scale(sc) rotate(rot) translate(sh){
478 import("sewing-table-rear-profile.dxf", convexity=10); // spline, Pink3
482 module Machine_NewFrontProfile(){
483 // figures copied out of xfig edit boxes
484 // best not to edit the posbox size if poss - just move it
485 posbox = 10 * ([11.8022,8.0600] - [4.2044,19.1867]); // box, Green
486 refline = 10 * ([7.6778,16.7222] - [27.8689,17.6578]); // line, Blue
487 refline_mm = (11-1)*10;
488 sh = -[abs(posbox[0]), abs(posbox[1])];
489 rot = atan2(-refline[0], refline[1]);
490 sc = refline_mm / vectorlen2d(refline);
491 //echo("SH",sh,rot,sc);
492 mirror([1,0]) scale(sc) rotate(rot+90) translate(sh){
493 import("sewing-table-front-profile.dxf", convexity=10); // spline, Pink3
497 module Machine_NewEndProfile(){
498 // figures copied out of xfig edit boxes
499 // NB that y coords are reversed - xfig origin is at bottom left
500 posboxs = 10 * [[4.0400,17.7956], [11.6622,32.5511]]; // box, Pink3
501 refline = 10 * ([8.4000,22.6000] - [50.3000,22.2000]); // line, Blue
502 refline_mm = 10 * (11 - 2.5);
503 sidelines = 10 * [[[9.0889,20.6178], [8.9644,14.6889]],
504 [[50.3800,21.9578], [50.1933,14.4933]]]; // lines, Blue3
505 baseline = 10 * [[8.4000,18.0822], [50.3000,17.6822]]; // line, Green2
509 posbox = [min(posboxs[0][0],posboxs[1][0]),
510 max(posboxs[0][1],posboxs[1][1])];
512 m4_define(`MNEP_ELP',
513 `line_intersection_2d(baseline[0],baseline[1],
514 sidelines[$1][0],sidelines[$1][1])')
515 endline = [MNEP_ELP(0),MNEP_ELP(1)];
517 rot = atan2(-refline[1], -refline[0]);
518 sc = refline_mm / vectorlen2d(refline);
519 sh = (0.5 * (endline[0] + endline[1])) - posbox;
521 ellen = sc * dist2d(endline[0],endline[1]);
522 scy = cutout_l_end_y_total / ellen;
524 scale([scy,1]) scale(sc) rotate(rot + rot_adj) translate(-[sh[0],-sh[1]]){
527 //%translate(1 * (posboxs[0] - posbox)) square(50);
528 //%translate(1 * (posboxs[1] - posbox)) square(50);
529 // %translate(1 * (baseline[0] - posbox)) square([50,10]);
531 // %translate(1 * (endline[0] - posbox)) square([50,10]);
532 // %translate(1 * (endline[1] - posbox)) square([50,10]);
534 // %translate(1 * (sidelines[0][0] - posbox)) square([10,50]);
535 // %translate(1 * (sidelines[0][1] - posbox)) square([10,50]);
536 // %translate(1 * (sidelines[1][0] - posbox)) square([10,50]);
537 // %translate(1 * (sidelines[1][1] - posbox)) square([10,50]);
540 import("sewing-table-end-profile.dxf", convexity=10); // spline, Pink3
544 module Machine_NewEndProfileDemo(){ ////toplevel
545 translate([0,5,0]) Machine_NewEndProfile();
546 translate([0,5,1]) color("blue") mirror([1,0]) Machine_NewEndProfile();
548 translate([0,5, 0]) Machine_NewEndProfile();
549 translate([0,5,-1]) color("blue") mirror([1,0]) Machine_NewEndProfile();
553 module Machine_NewArm(){
554 translate([0,0,-30]) linear_extrude(height=60) {
555 translate(tile01_tr + [ -cutout_l_end_x - cutout_l_end_new_x_slop,
556 (-cutout_tile01_y + cutout_tile11_y)/2 ]){
560 translate([0,d]) Machine_NewEndProfile();
567 module Machine_NewRearCurve(){
568 slant = atan2(4,210-10);
570 translate([0,0, rearcurve_double_inrad]) rotate([slant,0,0]){
571 translate([ rearcurve_double_inrad,
573 -rearcurve_double_inrad + 10 ]){
574 rotate([180,0,0]) rotate([0,0,90]) linear_extrude(height=30){
576 Machine_NewRearProfile();
577 translate([0,-100]) Machine_NewRearProfile();
581 rotate([0,90,0]) rotate([90,0,0]) {
583 rotate_extrude(convexity=10, $fn=64)
585 translate([ 0, -rearcurve_double_inrad ])
586 Machine_NewRearProfile();
587 translate([0,0,-500])
588 cube([500,500,1000]);
591 translate([1,0,-rearcurve_double_inrad])
592 rotate([0,-90,0]) rotate([0,0,-90])
593 linear_extrude(height= rearcurve_strt_len + 1)
594 Machine_NewRearProfile();
598 module Machine_Curves(){ ////toplevel
599 translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
603 translate([ -reartablet_x,
605 -reartablet_z + tablet_z_slop])
607 cube([ reartablet_x+1,
611 translate([ tile01_tr[0] - cutout_l_end_x + frontedge_len,
613 frontcurve_z_slop ]){
614 translate([0, -machine_rear_to_front, 0])
615 multmatrix([[1, -frontcurve_side_skew, 0, 0],
619 mirror([1,0,0]) rotate([0,-90,0])rotate([0,0,-90])
620 linear_extrude(height= 200)
621 Machine_NewFrontProfile();
623 translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
625 frontcurve_z_slop ]){
626 translate([ rearcurve_strt_len,
629 Machine_NewRearCurve();
634 module TestStrapSlots(){
635 pegwidth = teststrap_peg[0];
636 for (pos = teststrapslots_at) {
638 translate(concat(pos,[0]))
639 for (mx = [0,1]) mirror([mx,0,0]) {
640 translate([ pegwidth/2, -teststrap[1]/2, -20 ])
641 cube(concat(teststrap,[40]));
646 module TestStrapPeg_any(l){ cube(concat([l],teststrap_peg)); }
648 module TestStrapPeg_Short(){ ////toplevel
649 TestStrapPeg_any(35);
652 module TestStrapPeg_Long(){ ////toplevel
653 TestStrapPeg_any(60);
656 module Machine(){ ////toplevel
663 module MachineEnvelope(){
665 p_arm_bl = [-cutout_l_end_x, -cutout_tile01_y];
666 y_arm_t = cutout_tile11_y;
667 p_crv_fl = p_arm_bl + [frontedge_len, -frontcurve_avoid_y];
668 y_crv_b = y_arm_t + rearcurve_avoid_y;
670 translate([0,0,-50]) linear_extrude(height= 100){
671 translate(p_arm_bl) square([400, y_arm_t] - p_arm_bl);
672 translate(p_crv_fl) square([400, y_crv_b] - p_crv_fl);
676 module Leg(){ ////toplevel
681 cylinder(r= leg_big_dia/2, height=leg_top_flat_z, $fn=100);
682 translate([0,0, -leg_height])
683 cylinder(r= leg_bot_dia/2, height=1, $fn=100);
689 function Rectangle_corners(c0, sz) =
690 // returns the corners of a rectangle from c0 to c0+sz
691 // if sz is positive, the corners are anticlockwise starting with c0
694 c0 + [ sz[0], sz[1] ],
697 function Rectangle_corners2posts(c) =
703 module Rectangle_TileBase(c) { TileBase(c[0], c[2]); }
705 function Posts_interpolate_one(c0,c1) = [c0, (c0+c1)/2, c1];
707 module Tile02(){ ////toplevel
709 c0 = tile02_tr + -sz;
710 c = Rectangle_corners(c0, sz);
711 posts = Rectangle_corners2posts(c);
715 Rectangle_TileBase(c);
717 RoundEdge(R_EDGE(c,0));
718 RoundEdge(R_EDGE(c,3));
719 InterlockEdge(R_EDGE(c,2), 0);
721 InterlockEdge(R_EDGE(c,1), 1);
728 module Tile12(){ ////toplevel
730 c0 = tile02_tr + [-sz[0], 0];
731 c = Rectangle_corners(c0, sz);
732 posts = Rectangle_corners2posts(c);
736 Rectangle_TileBase(c);
738 RoundEdge(R_EDGE(c,2));
739 RoundEdge(R_EDGE(c,3));
741 InterlockEdge(R_EDGE(c,0), 1);
742 InterlockEdge(R_EDGE(c,1), 1);
749 tile_01_11_cnr = tile01_tr + [-cutout_l_end_x, 0];
750 tile_11_10_cnr = tile01_tr + [0, cutout_tile11_y];
751 tile_01_00_cnr = tile01_tr - [0, cutout_tile01_y];
753 module Tile11(){ ////toplevel
755 c0 = tile01_tr + [-sz[0],0];
756 c = Rectangle_corners(c0, sz);
757 cnr_posts = Rectangle_corners2posts(c);
759 Posts_interpolate_one(cnr_posts[0],
760 cnr_posts[1] - [cutout_l_end_x, 0]),
761 [ cnr_posts[1] + [0, cutout_tile11_y],
767 Rectangle_TileBase(c);
769 RoundEdge(R_EDGE(c,2));
770 InterlockEdge(R_EDGE(c,3));
772 InterlockEdge(c[0], tile_01_11_cnr, 1);
773 InterlockEdge(tile_11_10_cnr, c[2], 1);
779 module Tile01(){ ////toplevel
781 c0 = tile01_tr + -sz;
782 c = Rectangle_corners(c0, sz);
783 cnr_posts = Rectangle_corners2posts(c);
785 Posts_interpolate_one(R_EDGE(cnr_posts,0)),
786 [ cnr_posts[2] + [0, -cutout_tile01_y] ],
787 Posts_interpolate_one(cnr_posts[2] - [cutout_l_end_x, 0],
792 Rectangle_TileBase(c);
794 RoundEdge(R_EDGE(c,0));
795 InterlockEdge(tile_01_11_cnr, c[3]);
796 InterlockEdge(R_EDGE(c,3));
799 InterlockEdge(c[1], tile_01_00_cnr, 1);
804 module Tile10(){ ////toplevel
806 c0 = tile01_tr + [0,0];
807 c = Rectangle_corners(c0, sz);
808 cnr_posts = Rectangle_corners2posts(c);
809 cty = cutout_tile11_y;
810 rcy = cty + rearcurve_avoid_y;
811 posts = [ cnr_posts[0] + [ 0, cty ],
812 cnr_posts[1] + [ -sz[0] + rearedge_len - cutout_l_end_x, cty ],
813 cnr_posts[1] + [ 0, rcy ],
819 Rectangle_TileBase(c);
821 RoundEdge(R_EDGE(c,1));
822 RoundEdge(R_EDGE(c,2));
823 InterlockEdge(c[3], tile_11_10_cnr);
832 module Tile00(){ ////toplevel
834 c0 = tile01_tr + [0,-sz[1]];
835 c = Rectangle_corners(c0, sz);
837 // the edge c[1]..c[2] needs a diagonal chunk, from c1bis to c2bis
838 c2bis = [ -cutout_l_end_x + frontedge_len + frontcurve_strt_len, c[2][1] ];
841 (c[2][0] - c2bis[0]) * tan(90 - frontcurve_dualcurve_angle) ];
843 cnr_posts = Rectangle_corners2posts(c);
844 cty = cutout_tile01_y;
845 rcy = cty + frontcurve_avoid_y;
846 posts = [ cnr_posts[0],
848 0.5 * (cnr_posts[0] + cnr_posts[1]),
849 cnr_posts[2] + [ 0, -rcy ],
850 cnr_posts[2] + [ -sz[0] + frontedge_len - cutout_l_end_x, -cty ],
851 cnr_posts[3] + [ 0, -cty ]
854 rc2 = [c1bis,c2bis,c[1]];
859 Rectangle_TileBase(c);
861 RoundEdge(R_EDGE(c,0));
862 RoundEdge(c[1], c1bis);
863 InterlockEdge(tile_01_00_cnr, c[0]);
866 translate([0,0,-20]) linear_extrude(height=40) {
867 polygon([ c1bis, c1bis + [50,0], c2bis + [50,0], c2bis ]);
870 RoundEdge(c1bis, c2bis);
880 module FitTest_general(c0,sz, dobrace=false, bracexx=0){
881 c = Rectangle_corners(c0, sz);
883 bsz = sz + [bracexx,0,0];
886 Rectangle_TileBase(c);
888 translate(concat(c0, [-brace[2] + 0.1])){
890 cube(concat(bsz, [brace[2]]) - [5,0,0]);
891 translate(brace + [0,0, -25])
892 cube(concat(bsz, [50]) - brace*2 + [10,0,0]);
896 RoundEdge(R_EDGE(c,1));
902 module FitTest_PairLink(cut=false){ ////toplevel
903 cy0=-55; cy1=85; cx=132;
906 footrad_min = 1; footrad_max = 4; footrad_depth = 5;
912 straphole_x_max = legrad/sqrt(2) + footrad_max;
913 dz = cut ? adj_neg_slop : 0;
915 translate([cx - bar[0]/2, cy0, dz + bar_z_slop])
916 cube([bar[0], cy1-cy0, bar[1] - bar_z_slop]);
918 for (endy=[cy0,cy1]) {
920 translate([cx,endy,dz]){
922 for (rot=[45:90:315]) rotate(rot) {
923 translate([legrad,0,0]){
925 cylinder(r= footrad_max, h=1);
926 translate([0,0,-footrad_depth])
927 cylinder(r= footrad_min, h=1);
931 cylinder(r= footrad_min +
932 adj_neg_slop * (footrad_max-footrad_min)/footrad_depth,
937 for (rot=[45,135]) rotate(rot) {
940 translate([s*legrad,0,0])
941 cylinder(r= footrad_max, h=bar[1]);
947 for (rot=[0,180]) rotate(rot) {
948 translate([ straphole_x_max - strap[0]/2, 0,0 ])
949 cube(concat(strap,[20]), center=true);
956 module FitTest_RearCurve(){ ////toplevel
958 FitTest_general([100,0], [180,100]);
959 FitTest_PairLink(true);
964 module FitTest_FrontCurve(){ ////toplevel
970 translate([0,0,-8]) linear_extrude(height=18) {
971 translate(p0) square(sz);
972 translate(teststrapslots_at[3])
973 scale(2* [ teststrap_peg[0], teststrap[1] ])
977 FitTest_PairLink(true);
982 module FitTest_Entire(){ ////toplevel
985 szfront = [243,szrear[1]];
987 FitTest_general(p0, szrear, dobrace=true, bracexx=0);
988 FitTest_PairLink(true);
989 translate(concat(p0,[0]) + [szfront[0],-10,-40])
990 cube([100, -p0[1], 80]);
995 translate(concat(p0,[-20])) cube(concat(szrear,[40]));
997 FitTest_FrontCurve();
1000 module FitTest_EntireDemo(){ ////toplevel
1005 module FitTest_EndEnd(){ ////toplevel
1008 sz2 = [136,68] - p0;
1010 FitTest_general(p0, sz);
1011 translate([ p0[0] -1, p0[1]+sz2[1], -10])
1012 cube([ sz2[0] +1, 50, 20 ]);
1016 module FitTest_PairDemo(){ ////toplevel
1020 %FitTest_FrontCurve();
1021 %FitTest_RearCurve();
1027 FitTest_FrontCurve();
1028 FitTest_RearCurve();
1030 #FitTest_PairLink(true);
1036 module RoundCornerDemo_plat(cnr){
1037 mirror([0,0,1]) linear_extrude(height=1) polygon(cnr);
1040 module RoundCornerDemo(){ ////toplevel
1041 cnr = [ [-2,-3], [13,-3], [-12,9] ];
1042 translate([0,25,0]) RoundCornerDemo_plat(cnr);
1043 translate([25,0,0]) RoundCornerAdd(cnr);
1044 translate([-25,0,0]) RoundCornerCut(cnr);
1045 translate([0,-25,0]) RoundCorner_selector(cnr, 0);
1047 RoundCornerDemo_plat(cnr);
1048 RoundCornerCut(cnr);
1050 RoundCornerAdd(cnr);
1053 module Demo(){ ////toplevel
1054 translate(demo_slop*[-2,1]) color("blue") Tile12();
1055 translate(demo_slop*[-2,0]) color("red") Tile02();
1056 translate(demo_slop*[-2,1]) color("orange") Tile11();
1057 translate(demo_slop*[-2,0]) color("purple") Tile01();
1058 translate(demo_slop*[-3,1]) color("blue") Tile10();
1059 translate(demo_slop*[-3,0]) color("red") Tile00();
1061 // Can also do this, to print reference sheet:
1062 // load this into openscad
1063 // select Ctrl-4 view, view all, scale appropriately
1064 // import sewing-table,Demo-flat.png
1065 // pngtopnm <sewing-table,Demo-flat.png | ppmbrighten -s -50 -v +100 >t.pnm
1073 //Machine_NewRearProfile();
1074 //Machine_NewRearCurve();
1075 //Machine_NewFrontProfile();
1076 //Machine_NewEndProfile();
1077 //Machine_NewEndProfileDemo();
1081 //MachineEnvelope();