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;
35 machine_rear_to_front = 84 + 0.25 - 1.4;
37 cutout_l_end_y_front_slop = 0.5;
38 cutout_l_end_y_rear_slop = 0.5;
41 cutout_l_end_y = machine_rear_to_front;
42 cutout_l_end_new_x_slop = 1.4 - 1.95;
43 cutout_l_end_y_total = cutout_l_end_y
44 + cutout_l_end_y_front_slop + cutout_l_end_y_rear_slop;
46 tile02_tr = [-250, 0];
49 cutout_tile01_y = 170 - 147 + cutout_l_end_y_front_slop;
50 cutout_tile11_y = cutout_l_end_y_total - cutout_tile01_y;
52 // front and rear curves
54 rearedge_len = 170 + 0.70;
57 rearcurve_strt_len = 52;
59 rearcurve_z_slop = -0.50;
61 rearcurve_avoid_y = 35;
63 rearcurve_double_inrad = 26.10 + 8.04;
69 frontcurve_side_skew = 3.5 / 72;
70 frontcurve_avoid_y = 70;
71 frontcurve_z_slop = 0.75;
73 frontcurve_strt_len = 50;
74 frontcurve_dualcurve_angle = 30;
76 teststrapslots_at = [ [ 110, 70 ], [ 110, -35 ],
78 [ 190, -80 ], // do not change index of this one
79 [ 0, 70 ], [ 0, -35 ],
83 teststrap_peg = [7.5, 3.5];
85 ply_edge_hole_dist_real = 14;
92 ply_edge_hole_dist = ply_edge_min + ply_hole_dia/2;
94 echo(str("HOLES IN PLY ctr dist from PLY edge = ", ply_edge_hole_dist));
96 hole_slop = (ply_hole_dia - post_dia)/2;
97 tile_hard_edge_hole_dist = ply_edge_hole_dist + hole_slop;
99 echo(str("HOLES IN PLY ctr dist from TILE HARD edge = ",
100 tile_hard_edge_hole_dist));
102 echo(str("HOLES IN PLY ctr dist from TILE ROUND edge = ",
103 tile_hard_edge_hole_dist + round_edge_rad));
105 thehd = [ tile_hard_edge_hole_dist, tile_hard_edge_hole_dist ];
107 thehd_tl = [ -thehd_tr[0], thehd_tr[1] ];
108 thehd_bl = -thehd_tr;
109 thehd_br = -thehd_tl;
111 tablet_z_slop = 1.00;
113 interlock_rad = interlock_dia/2;
114 interlock_negative_rad = interlock_rad + 0.125;
116 interlock_sq_adj = 0.2; // arbitrary
118 m4_define(`POST_TCROSSSZ',
119 `2*( tile_hard_edge_hole_dist - test_edge + 1 )')
125 cylinder(r= post_dia/2, h= tile_th + ply_th - post_shorter);
126 translate([0,0, tile_th]) {
127 cylinder(r= screw_big_dia/2, h= screw_big_len);
128 cylinder(r= screw_dia/2, h= ply_th, $fn=20);
133 translate([0,0, tile_th/2]) {
134 cube([post_dia, POST_TCROSSSZ, tile_th], center=true);
135 cube([POST_TCROSSSZ, post_dia, tile_th], center=true);
139 translate([0,0, tile_th/2]) {
140 cube([POST_TCROSSSZ, POST_TCROSSSZ, tile_th], center=true);
149 cylinder(r= post_dia/2 + jig_post_hole_slop, h=10);
150 translate([0,0, -jig_min_th])
151 cylinder(r= ply_hole_dia_real/2, h = 5);
152 for (rot=[0:90:270]) rotate(rot) {
153 translate([ ply_edge_hole_dist_real, 0, 0 ])
154 cube([ jig_pencil_rad*2, jig_pencil_slotlen, 20 ], center=true);
159 module Posts(posts) {
161 translate(concat(p, [0]))
165 module PostHoles(posts) {
167 translate(concat(p, [0]))
172 module TileBase(botleft, topright){
173 size = topright - botleft;
174 botleft_post = botleft + thehd_tr;
175 topright_post = topright + thehd_bl;
178 translate(concat(botleft, [0]))
179 cube(concat(size, [tile_th]));
180 if (!(TEST || JIG)) {
181 cidsz = topright_post-botleft_post
182 + [-post_dia,-post_dia]
184 cidszr = [ min(cidsz[0],50), min(cidsz[1],50) ];
185 echo("CID",cidsz,cidszr);
186 translate( concat(botleft_post, [ -tile_th ])
187 + 0.5 * [ post_dia, post_dia, 0 ]
188 + 0.5 * concat( cidsz - cidszr, [ 0 ]) )
189 Commitid_BestCount_M(cidszr);
192 crossoff = tile_hard_edge_hole_dist + POST_TCROSSSZ/2;
193 cidsz = [ thehd[0], size[1] - 2*crossoff ];
194 cidszr = [ cidsz[0], min(cidsz[1], 50) ];
196 translate( concat(botleft + [0, crossoff] + (cidsz-cidszr)/2, [0]) )
197 Commitid_BestCount(cidszr);
200 translate(concat(botleft + [test_edge,test_edge], [test_tile_th]))
201 cube(concat(size - [test_edge,test_edge]*2, [tile_th*2]));
202 translate(concat(botleft_post, [-1]))
203 cube(concat(topright_post-botleft_post, [tile_th+2]));
205 shufflesz = max(test_edge, tile_hard_edge_hole_dist)*2;
208 cube(shufflesz, center=true);
211 translate([0,0,-20]) linear_extrude(height=20) {
213 rotate(atan2(size[1],size[0]))
214 translate([0, -test_edge/2])
215 square([vectorlen2d(size), test_edge]);
224 m4_dnl c is from Rectangle_corners and
225 m4_dnl ix is a corner number
226 m4_dnl expands to two comma-separated corners:
227 m4_dnl that denoted by ix, and the next one anticlockwise
228 m4_define(`R_EDGE',`$1[$2], $1[(($2)+1)%4]')
231 m4_dnl c is from Rectangle_corners and
232 m4_dnl ix is a corner number
233 m4_dnl expands to an array of corners as for RoundCorner
234 m4_define(`R_CNR',`[ $1[$2], $1[(($2)+1)%4], $1[(($2)+3)%4] ]')
236 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars) { body; }
237 m4_define(`INREFFRAME',`
238 length_vec = ($2) - ($1);
239 length = dist2d([0,0], length_vec);
240 length_uvec = length_vec / length;
241 ortho_uvec = [ -length_uvec[1], length_uvec[0] ];
242 m = [ [ length_uvec[0], ortho_uvec[0], 0, ($1)[0], ],
243 [ length_uvec[1], ortho_uvec[1], 0, ($1)[1], ],
250 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars)
251 m4_dnl INREFFRAME_EDGE { body; }
252 m4_define(`INREFFRAME_EDGE',`
253 translate([0,0, -round_edge_rad])
256 module RoundEdge(left_cnr, right_cnr) {
257 INREFFRAME(left_cnr, right_cnr)
261 cylinder(r= round_edge_rad, h= length, $fn=50);
262 translate([-1, 0, -20])
263 cube([length+2, 20, 20]);
268 m4_define(`ROUNDCORNER_VARS',`
272 bigr= round_cnr_rad - round_edge_rad;
273 l_uvec = unitvector2d(left_cnr - this_cnr);
274 r_uvec = unitvector2d(right_cnr - this_cnr);
275 lp1 = left_cnr + clockwise2d(l_uvec) * bigr;
276 lp2 = this_cnr + clockwise2d(l_uvec) * bigr;
277 lp3 = this_cnr - clockwise2d(r_uvec) * bigr;
278 lp4 = right_cnr - clockwise2d(r_uvec) * bigr;
279 ctr = line_intersection_2d(lp1,lp2,lp3,lp4);
280 ctr3 = concat(ctr,[0])
283 module RoundCorner_selector(ci, adj) {
287 INREFFRAME(ctr3,concat(lp1,[4])){
288 translate([0,0,-bigr]) linear_extrude(height=bigr*2) {
289 translate([-bigr*2 + adj, -bigr])
290 square([bigr*2, bigr*3]);
295 INREFFRAME(ctr3,concat(lp4,[0])){
296 translate([0,0,-bigr]) linear_extrude(height=bigr*2) {
297 translate([-bigr*2, -bigr*2])
298 square([bigr*2 + adj, bigr*3]);
305 module RoundCornerCut(ci) {
306 // ci should be [this_cnr, right_cnr, left_cnr]
307 // where right_cnr is to the right (ie, anticlockwise)
310 RoundCorner_selector(ci, -0.1);
312 cylinder(center=true, h=20, r= bigr);
316 module RoundCornerAdd(ci) {
319 RoundCorner_selector(ci, +0.1);
322 rotate_extrude(convexity=10, $fn=50)
325 circle(r= round_edge_rad, $fn=50);
334 module InterlockLobePlan(negative) {
335 r = negative ? interlock_negative_rad : interlock_rad;
336 ymir = negative ? 0 : 1;
340 translate([thehd[0], 0]){
344 translate([-dx, -0.1])
345 square([ dx*2, r/2 + 0.1 ]);
347 translate([ xi*dx, r ])
355 module InterlockEdgePlan(negative, nlobes, length, dosquare=true) {
356 for (lobei = [ 0 : nlobes-1 ]) {
357 lobex = (length - thehd[0]*2) * (lobei ? lobei / (nlobes-1) : 0);
358 translate([lobex, 0, 0]) {
359 InterlockLobePlan(negative);
365 slotshorter = negative ? -0.1 : interlock_fine_lenslop;
366 mirror([0, negative])
367 translate([slotshorter, iadj])
368 square([length - slotshorter*2, interlock_fine + iadj*2]);
372 module InterlockEdge(left_cnr, right_cnr, negative=0, nlobes=2) {
373 plusth = negative * 1.0;
374 protr = interlock_fine + interlock_sq_adj;
377 z1 = -tile_th/2 - protr / interlock_fine_slope;
378 z3 = -tile_th/2 + protr / interlock_fine_slope;
380 negsign = negative ? -1 : +1;
381 yprotr = negsign * protr;
383 INREFFRAME(left_cnr, right_cnr) {
384 for (vsect = [ // zs0 zs1 ys0, ys1
385 [ -tile_th-plusth, plusth, 0, 0],
386 [ z1, z2, 0, yprotr],
387 [ z2, z3, yprotr, 0],
397 [ 0,1, -sl, -ys0 + negsign*interlock_sq_adj ],
401 linear_extrude(height=zsd, convexity=10)
402 InterlockEdgePlan(negative, nlobes, length, !!ysd);
407 function TestPiece_holes2corners(holes) =
408 [ holes[0] + thehd_bl,
411 holes[0] + thehd_tl ];
413 module TestPiece1(){ ////toplevel
417 corners = TestPiece_holes2corners(holes);
418 rcs = R_CNR(corners,0);
421 TileBase(corners[0], corners[2]);
423 RoundEdge(corners[0], corners[1]);
424 RoundEdge(corners[3], corners[0]);
426 InterlockEdge(corners[1], corners[2], 1, nlobes=1);
433 module TestPiece2(){ ////toplevel
437 corners = TestPiece_holes2corners(holes);
440 TileBase(corners[0], corners[2]);
442 RoundEdge(corners[0], corners[1]);
443 InterlockEdge(corners[3], corners[0], 0, nlobes=1);
449 module TestDemo(){ ////toplevel
450 translate([ -thehd[0], 0 ])
453 translate([ +thehd[0] + demo_slop, 0 ])
457 module Machine_NewRearProfile(){
458 // figures copied out of xfig edit boxes
459 // best not to edit the posbox size if poss - just move it
460 posbox = 10 * ([7.2333,-14.1267] - [-16.2289,40.0289]); // box, Green
461 sideline = -10 * ([-6.2400,13.5600] - [-2.4467,28.2556]); // line, Blue
462 scaleline = 10 * dist2d([-1.1911,-20.4800], [-11.2600,4.0578]); // Green2
463 scaleline_mm = 12+5+10+5+3;
464 sh = -[abs(posbox[0]), abs(posbox[1])];
465 rot = atan2(-sideline[0], sideline[1]);
466 sc = scaleline_mm / scaleline;
467 //echo("SH",sh,rot,sc);
468 scale(sc) rotate(rot) translate(sh){
469 import("sewing-table-rear-profile.dxf", convexity=10); // spline, Pink3
473 module Machine_NewFrontProfile(){
474 // figures copied out of xfig edit boxes
475 // best not to edit the posbox size if poss - just move it
476 posbox = 10 * ([11.8022,8.0600] - [4.2044,19.1867]); // box, Green
477 refline = 10 * ([7.6778,16.7222] - [27.8689,17.6578]); // line, Blue
478 refline_mm = (11-1)*10;
479 sh = -[abs(posbox[0]), abs(posbox[1])];
480 rot = atan2(-refline[0], refline[1]);
481 sc = refline_mm / vectorlen2d(refline);
482 //echo("SH",sh,rot,sc);
483 mirror([1,0]) scale(sc) rotate(rot+90) translate(sh){
484 import("sewing-table-front-profile.dxf", convexity=10); // spline, Pink3
488 module Machine_NewEndProfile(){
489 // figures copied out of xfig edit boxes
490 // NB that y coords are reversed - xfig origin is at bottom left
491 posboxs = 10 * [[4.0400,17.7956], [11.6622,32.5511]]; // box, Pink3
492 refline = 10 * ([8.4000,22.6000] - [50.3000,22.2000]); // line, Blue
493 refline_mm = 10 * (11 - 2.5);
494 sidelines = 10 * [[[9.0889,20.6178], [8.9644,14.6889]],
495 [[50.3800,21.9578], [50.1933,14.4933]]]; // lines, Blue3
496 baseline = 10 * [[8.4000,18.0822], [50.3000,17.6822]]; // line, Green2
500 posbox = [min(posboxs[0][0],posboxs[1][0]),
501 max(posboxs[0][1],posboxs[1][1])];
503 m4_define(`MNEP_ELP',
504 `line_intersection_2d(baseline[0],baseline[1],
505 sidelines[$1][0],sidelines[$1][1])')
506 endline = [MNEP_ELP(0),MNEP_ELP(1)];
508 rot = atan2(-refline[1], -refline[0]);
509 sc = refline_mm / vectorlen2d(refline);
510 sh = (0.5 * (endline[0] + endline[1])) - posbox;
512 ellen = sc * dist2d(endline[0],endline[1]);
513 scy = cutout_l_end_y_total / ellen;
515 scale([scy,1]) scale(sc) rotate(rot + rot_adj) translate(-[sh[0],-sh[1]]){
518 //%translate(1 * (posboxs[0] - posbox)) square(50);
519 //%translate(1 * (posboxs[1] - posbox)) square(50);
520 // %translate(1 * (baseline[0] - posbox)) square([50,10]);
522 // %translate(1 * (endline[0] - posbox)) square([50,10]);
523 // %translate(1 * (endline[1] - posbox)) square([50,10]);
525 // %translate(1 * (sidelines[0][0] - posbox)) square([10,50]);
526 // %translate(1 * (sidelines[0][1] - posbox)) square([10,50]);
527 // %translate(1 * (sidelines[1][0] - posbox)) square([10,50]);
528 // %translate(1 * (sidelines[1][1] - posbox)) square([10,50]);
531 import("sewing-table-end-profile.dxf", convexity=10); // spline, Pink3
535 module Machine_NewEndProfileDemo(){ ////toplevel
536 translate([0,5,0]) Machine_NewEndProfile();
537 translate([0,5,1]) color("blue") mirror([1,0]) Machine_NewEndProfile();
539 translate([0,5, 0]) Machine_NewEndProfile();
540 translate([0,5,-1]) color("blue") mirror([1,0]) Machine_NewEndProfile();
544 module Machine_NewArm(){
545 translate([0,0,-30]) linear_extrude(height=60) {
546 translate(tile01_tr + [ -cutout_l_end_x - cutout_l_end_new_x_slop,
547 (-cutout_tile01_y + cutout_tile11_y)/2 ]){
551 translate([0,d]) Machine_NewEndProfile();
558 module Machine_NewRearCurve(){
559 slant = atan2(4,210-10);
561 translate([0,0, rearcurve_double_inrad]) rotate([slant,0,0]){
562 translate([ rearcurve_double_inrad,
564 -rearcurve_double_inrad + 10 ]){
565 rotate([180,0,0]) rotate([0,0,90]) linear_extrude(height=30){
567 Machine_NewRearProfile();
568 translate([0,-100]) Machine_NewRearProfile();
572 rotate([0,90,0]) rotate([90,0,0]) {
574 rotate_extrude(convexity=10, $fn=64)
576 translate([ 0, -rearcurve_double_inrad ])
577 Machine_NewRearProfile();
578 translate([0,0,-500])
579 cube([500,500,1000]);
582 translate([1,0,-rearcurve_double_inrad])
583 rotate([0,-90,0]) rotate([0,0,-90])
584 linear_extrude(height= rearcurve_strt_len + 1)
585 Machine_NewRearProfile();
589 module Machine_Curves(){ ////toplevel
590 translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
594 translate([ -reartablet_x,
596 -reartablet_z + tablet_z_slop])
598 cube([ reartablet_x+1,
602 translate([ tile01_tr[0] - cutout_l_end_x + frontedge_len,
604 frontcurve_z_slop ]){
605 translate([0, -machine_rear_to_front, 0])
606 multmatrix([[1, -frontcurve_side_skew, 0, 0],
610 mirror([1,0,0]) rotate([0,-90,0])rotate([0,0,-90])
611 linear_extrude(height= 200)
612 Machine_NewFrontProfile();
614 translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
616 frontcurve_z_slop ]){
617 translate([ rearcurve_strt_len,
620 Machine_NewRearCurve();
625 module TestStrapSlots(){
626 pegwidth = teststrap_peg[0];
627 for (pos = teststrapslots_at) {
629 translate(concat(pos,[0]))
630 for (mx = [0,1]) mirror([mx,0,0]) {
631 translate([ pegwidth/2, -teststrap[1]/2, -20 ])
632 cube(concat(teststrap,[40]));
637 module TestStrapPeg_any(l){ cube(concat([l],teststrap_peg)); }
639 module TestStrapPeg_Short(){ ////toplevel
640 TestStrapPeg_any(35);
643 module TestStrapPeg_Long(){ ////toplevel
644 TestStrapPeg_any(60);
647 module Machine(){ ////toplevel
654 module MachineEnvelope(){
656 p_arm_bl = [-cutout_l_end_x, -cutout_tile01_y];
657 y_arm_t = cutout_tile11_y;
658 p_crv_fl = p_arm_bl + [frontedge_len, -frontcurve_avoid_y];
659 y_crv_b = y_arm_t + rearcurve_avoid_y;
661 translate([0,0,-50]) linear_extrude(height= 100){
662 translate(p_arm_bl) square([400, y_arm_t] - p_arm_bl);
663 translate(p_crv_fl) square([400, y_crv_b] - p_crv_fl);
667 function Rectangle_corners(c0, sz) =
668 // returns the corners of a rectangle from c0 to c0+sz
669 // if sz is positive, the corners are anticlockwise starting with c0
672 c0 + [ sz[0], sz[1] ],
675 function Rectangle_corners2posts(c) =
681 module Rectangle_TileBase(c) { TileBase(c[0], c[2]); }
683 function Posts_interpolate_one(c0,c1) = [c0, (c0+c1)/2, c1];
685 module Tile02(){ ////toplevel
687 c0 = tile02_tr + -sz;
688 c = Rectangle_corners(c0, sz);
689 posts = Rectangle_corners2posts(c);
693 Rectangle_TileBase(c);
695 RoundEdge(R_EDGE(c,0));
696 RoundEdge(R_EDGE(c,3));
697 InterlockEdge(R_EDGE(c,2), 0);
699 InterlockEdge(R_EDGE(c,1), 1);
706 module Tile12(){ ////toplevel
708 c0 = tile02_tr + [-sz[0], 0];
709 c = Rectangle_corners(c0, sz);
710 posts = Rectangle_corners2posts(c);
714 Rectangle_TileBase(c);
716 RoundEdge(R_EDGE(c,2));
717 RoundEdge(R_EDGE(c,3));
719 InterlockEdge(R_EDGE(c,0), 1);
720 InterlockEdge(R_EDGE(c,1), 1);
727 tile_01_11_cnr = tile01_tr + [-cutout_l_end_x, 0];
728 tile_11_10_cnr = tile01_tr + [0, cutout_tile11_y];
729 tile_01_00_cnr = tile01_tr - [0, cutout_tile01_y];
731 module Tile11(){ ////toplevel
733 c0 = tile01_tr + [-sz[0],0];
734 c = Rectangle_corners(c0, sz);
735 cnr_posts = Rectangle_corners2posts(c);
737 Posts_interpolate_one(cnr_posts[0],
738 cnr_posts[1] - [cutout_l_end_x, 0]),
739 [ cnr_posts[1] + [0, cutout_tile11_y],
745 Rectangle_TileBase(c);
747 RoundEdge(R_EDGE(c,2));
748 InterlockEdge(R_EDGE(c,3));
750 InterlockEdge(c[0], tile_01_11_cnr, 1);
751 InterlockEdge(tile_11_10_cnr, c[2], 1);
757 module Tile01(){ ////toplevel
759 c0 = tile01_tr + -sz;
760 c = Rectangle_corners(c0, sz);
761 cnr_posts = Rectangle_corners2posts(c);
763 Posts_interpolate_one(R_EDGE(cnr_posts,0)),
764 [ cnr_posts[2] + [0, -cutout_tile01_y] ],
765 Posts_interpolate_one(cnr_posts[2] - [cutout_l_end_x, 0],
770 Rectangle_TileBase(c);
772 RoundEdge(R_EDGE(c,0));
773 InterlockEdge(tile_01_11_cnr, c[3]);
774 InterlockEdge(R_EDGE(c,3));
777 InterlockEdge(c[1], tile_01_00_cnr, 1);
782 module Tile10(){ ////toplevel
784 c0 = tile01_tr + [0,0];
785 c = Rectangle_corners(c0, sz);
786 cnr_posts = Rectangle_corners2posts(c);
787 cty = cutout_tile11_y;
788 rcy = cty + rearcurve_avoid_y;
789 posts = [ cnr_posts[0] + [ 0, cty ],
790 cnr_posts[1] + [ -sz[0] + rearedge_len - cutout_l_end_x, cty ],
791 cnr_posts[1] + [ 0, rcy ],
797 Rectangle_TileBase(c);
799 RoundEdge(R_EDGE(c,1));
800 RoundEdge(R_EDGE(c,2));
801 InterlockEdge(c[3], tile_11_10_cnr);
810 module Tile00(){ ////toplevel
812 c0 = tile01_tr + [0,-sz[1]];
813 c = Rectangle_corners(c0, sz);
815 // the edge c[1]..c[2] needs a diagonal chunk, from c1bis to c2bis
816 c2bis = [ -cutout_l_end_x + frontedge_len + frontcurve_strt_len, c[2][1] ];
819 (c[2][0] - c2bis[0]) * tan(90 - frontcurve_dualcurve_angle) ];
821 cnr_posts = Rectangle_corners2posts(c);
822 cty = cutout_tile01_y;
823 rcy = cty + frontcurve_avoid_y;
824 posts = [ cnr_posts[0],
826 0.5 * (cnr_posts[0] + cnr_posts[1]),
827 cnr_posts[2] + [ 0, -rcy ],
828 cnr_posts[2] + [ -sz[0] + frontedge_len - cutout_l_end_x, -cty ],
829 cnr_posts[3] + [ 0, -cty ]
832 rc2 = [c1bis,c2bis,c[1]];
837 Rectangle_TileBase(c);
839 RoundEdge(R_EDGE(c,0));
840 RoundEdge(c[1], c1bis);
841 InterlockEdge(tile_01_00_cnr, c[0]);
844 translate([0,0,-20]) linear_extrude(height=40) {
845 polygon([ c1bis, c1bis + [50,0], c2bis + [50,0], c2bis ]);
848 RoundEdge(c1bis, c2bis);
858 module FitTest_general(c0,sz, dobrace=false, bracexx=0){
859 c = Rectangle_corners(c0, sz);
861 bsz = sz + [bracexx,0,0];
864 Rectangle_TileBase(c);
866 translate(concat(c0, [-brace[2] + 0.1])){
868 cube(concat(bsz, [brace[2]]) - [5,0,0]);
869 translate(brace + [0,0, -25])
870 cube(concat(bsz, [50]) - brace*2 + [10,0,0]);
874 RoundEdge(R_EDGE(c,1));
880 module FitTest_PairLink(cut=false){ ////toplevel
881 cy0=-55; cy1=85; cx=132;
884 footrad_min = 1; footrad_max = 4; footrad_depth = 5;
890 straphole_x_max = legrad/sqrt(2) + footrad_max;
891 dz = cut ? adj_neg_slop : 0;
893 translate([cx - bar[0]/2, cy0, dz + bar_z_slop])
894 cube([bar[0], cy1-cy0, bar[1] - bar_z_slop]);
896 for (endy=[cy0,cy1]) {
898 translate([cx,endy,dz]){
900 for (rot=[45:90:315]) rotate(rot) {
901 translate([legrad,0,0]){
903 cylinder(r= footrad_max, h=1);
904 translate([0,0,-footrad_depth])
905 cylinder(r= footrad_min, h=1);
909 cylinder(r= footrad_min +
910 adj_neg_slop * (footrad_max-footrad_min)/footrad_depth,
915 for (rot=[45,135]) rotate(rot) {
918 translate([s*legrad,0,0])
919 cylinder(r= footrad_max, h=bar[1]);
925 for (rot=[0,180]) rotate(rot) {
926 translate([ straphole_x_max - strap[0]/2, 0,0 ])
927 cube(concat(strap,[20]), center=true);
934 module FitTest_RearCurve(){ ////toplevel
936 FitTest_general([100,0], [180,100]);
937 FitTest_PairLink(true);
942 module FitTest_FrontCurve(){ ////toplevel
948 translate([0,0,-8]) linear_extrude(height=18) {
949 translate(p0) square(sz);
950 translate(teststrapslots_at[3])
951 scale(2* [ teststrap_peg[0], teststrap[1] ])
955 FitTest_PairLink(true);
960 module FitTest_Entire(){ ////toplevel
963 szfront = [243,szrear[1]];
965 FitTest_general(p0, szrear, dobrace=true, bracexx=0);
966 FitTest_PairLink(true);
967 translate(concat(p0,[0]) + [szfront[0],-10,-40])
968 cube([100, -p0[1], 80]);
973 translate(concat(p0,[-20])) cube(concat(szrear,[40]));
975 FitTest_FrontCurve();
978 module FitTest_EntireDemo(){ ////toplevel
983 module FitTest_EndEnd(){ ////toplevel
988 FitTest_general(p0, sz);
989 translate([ p0[0] -1, p0[1]+sz2[1], -10])
990 cube([ sz2[0] +1, 50, 20 ]);
994 module FitTest_PairDemo(){ ////toplevel
998 %FitTest_FrontCurve();
999 %FitTest_RearCurve();
1005 FitTest_FrontCurve();
1006 FitTest_RearCurve();
1008 #FitTest_PairLink(true);
1014 module RoundCornerDemo_plat(cnr){
1015 mirror([0,0,1]) linear_extrude(height=1) polygon(cnr);
1018 module RoundCornerDemo(){ ////toplevel
1019 cnr = [ [-2,-3], [13,-3], [-12,9] ];
1020 translate([0,25,0]) RoundCornerDemo_plat(cnr);
1021 translate([25,0,0]) RoundCornerAdd(cnr);
1022 translate([-25,0,0]) RoundCornerCut(cnr);
1023 translate([0,-25,0]) RoundCorner_selector(cnr, 0);
1025 RoundCornerDemo_plat(cnr);
1026 RoundCornerCut(cnr);
1028 RoundCornerAdd(cnr);
1031 module Demo(){ ////toplevel
1032 translate(demo_slop*[-2,1]) color("blue") Tile12();
1033 translate(demo_slop*[-2,0]) color("red") Tile02();
1034 translate(demo_slop*[-2,1]) color("orange") Tile11();
1035 translate(demo_slop*[-2,0]) color("purple") Tile01();
1036 translate(demo_slop*[-3,1]) color("blue") Tile10();
1037 translate(demo_slop*[-3,0]) color("red") Tile00();
1039 // Can also do this, to print reference sheet:
1040 // load this into openscad
1041 // select Ctrl-4 view, view all, scale appropriately
1042 // import sewing-table,Demo-flat.png
1043 // pngtopnm <sewing-table,Demo-flat.png | ppmbrighten -s -50 -v +100 >t.pnm
1051 //Machine_NewRearProfile();
1052 //Machine_NewRearCurve();
1053 //Machine_NewFrontProfile();
1054 //Machine_NewEndProfile();
1055 //Machine_NewEndProfileDemo();
1059 //MachineEnvelope();