3 // Print, for each end:
12 enable_head_cups = false;
14 main_dia = 71.2 + 0.50 - 2.26;
16 top_thick_by_oring = 3.0;
23 rivet_posn = 6.0 + 0.30;
25 rivet_width = 4.15 + 1.0;
26 rivet_tall = 5.51 + 1.49;
28 over_rivet_wall = 1.0;
30 inside_rivet_gap = 1.5;
34 bayo_interf_width = 2.0;
35 bayo_interf_slope = 0.5;
40 oring_upper_embed_angle = 80;
41 oring_compress = 0.1; // proportion
42 oring_compress_more = 0.2;
55 bayo_slice_size = coarse ? 5 : 1;
57 brace_hole_width = 1.0;
58 brace_above_below = 1.2;
59 brace_end_shorter = 0.3;
67 strap_hoop_inside = 10;
68 strap_hoop_strlen = 10;
69 strap_hoop_elevation = 45;
71 sm_inner_circum = 218 - 1.90 - 1.00 - 0.50;
75 sm_bolt_dia = 3.5 + 0.1;
77 sm_bolt_head_dia = 6.94 + 1.0;
78 sm_bolt_head_thick = 2.14;
79 sm_bolt_nut_width = 5.89 + 0.25;
80 sm_bolt_nut_thick = 3.68;
81 sm_bolt_tighten_allow = 2.0;
83 sm_bolt_y_clear = 0.75;
93 catch_pin_slop = 0.25; // each side, and above
94 catch_pin_slop_x_extra = 0.0; // only on one side
95 catch_stalk_above_gap = 1.5;
96 catch_stalk_eff_bend_rad = catch_stalk_len * 0.75;
98 catch_strap_width = 12;
99 catch_stalk_base_width = 15;
102 catch_knob_above_gap = 5;
103 catch_knob_height = 3.0;
105 catch_stalk_below_gap = 1.0;
106 catch_stalk_beside_gap = 2.0;
112 bayo_entry_x = bayo_entry;
113 bayo_entry_z = bayo_entry;
114 bayo_inramp_x = bayo_inramp;
115 bayo_inramp_z = bayo_inramp;
117 oring_mid_dia = oring_bore + oring_thick;
118 oring_outer_dia = oring_mid_dia + oring_thick;
120 oring_oblate = (1 - oring_compress);
122 oring_y_rad = oring_thick/2 * oring_oblate;
123 oring_x_rad = oring_thick/2 / oring_oblate;
125 by_oring_z = oring_y_rad * (1 + cos(oring_upper_embed_angle));
127 side_height = rivet_posn + bayo_behind + rivet_thick/2;
128 side_thick = rivet_tall + over_rivet_wall;
130 top_z = top_thick_by_oring + oring_y_rad + by_oring_z;
132 middle_bot_z = top_z - top_thick_middle;
134 bayo_top_z = bayo_behind + bayo_gap;
136 bayo_nom_rad = main_dia/2 + side_thick;
137 bayo_real_rad = main_dia/2 + rivet_tall;
139 rivet_entry_width = rivet_width + side_rivet_gap;
141 jig_mark_rad = jig_mark + main_dia/2 + jig_thick;
143 handling_dia = oring_bore + oring_thick*2 + min_wall*2;
146 sm_inner_rad = (sm_inner_circum + sm_bolt_tighten_allow/2) / TAU;
147 sm_outer_rad = sm_inner_rad + sm_main_thick;
149 smc_pos = [ 0, sm_inner_rad, 0 ];
151 smc_bolt_nut_dia = sm_bolt_nut_width / cos(30);
152 smc_bolt_nut_eff_thick = sm_bolt_nut_thick + sm_bolt_tighten_allow;
154 smc_bolt_y = sm_bolt_dia/2 + sm_bolt_y_clear;
155 smc_max_y = smc_bolt_y + sm_bolt_y_over
156 + max(sm_bolt_head_dia/2, smc_bolt_nut_dia/2);
157 smc_cnr_c_x = sm_bolt_shaft/2 - sm_closure_cnr
158 + sm_bolt_head_thick/2 + smc_bolt_nut_eff_thick/2;
160 catch_cr = catch_knob_dia/2 + catch_stalk_beside_gap;
161 catch_strap_thick = sm_main_thick;
163 echo("R ", sm_inner_rad, bayo_real_rad, bayo_nom_rad);
165 $fs= coarse ? 2.5 : 0.5;
168 include <poster-tube-lid-parametric.scad>
170 // bayonet definition
172 bayo_a = [ bayo_entry_x, 0 ];
173 bayo_p = [ 0, bayo_entry_z ];
174 bayo_n = [ 0, bayo_behind-bayo_inramp_z ];
175 bayo_m = [ bayo_inramp_x, bayo_behind ];
176 bayo_l = bayo_m + bayo_interf * [ 1/bayo_interf_slope, 1 ];
177 bayo_k = bayo_l + [ bayo_interf_width, 0 ];
178 bayo_j = bayo_k + bayo_interf * [ 1/bayo_interf_slope, -1 ];
179 bayo_i = bayo_j + [ rivet_width + inside_rivet_gap, 0 ];
180 bayo_h = [ bayo_i[0], bayo_behind + bayo_gap + bayo_interf ];
181 bayo_g = [ bayo_m[0] - rivet_width, bayo_h[1] ];
183 bayo_e = [-bayo_p[0], bayo_p[1]] - [rivet_entry_width,0];
184 bayo_d = [-bayo_a[0], bayo_a[1]] - [rivet_entry_width,0];
185 bayo_c = bayo_d + [0,-5];
186 bayo_b = bayo_a + [0,-5];
188 bayo_f = [ bayo_e[0], bayo_g[1] + (bayo_e[0] - bayo_g[0]) ];
190 bayo_polygon = [ bayo_a,
210 cppxC = 0.41 * sm_inner_rad * TAU;
214 cpp_adj = (bayo_n[0] - bayo_f[0]) * (1 - sm_inner_rad / bayo_nom_rad);
215 // radius scaling due to nom and actual radius difference in
216 // bayo entry construction
218 cppa = bayo_f + [1,-1] * catch_pin_slop + [1,0] * cpp_adj;
219 cppb = bayo_g + [1,-1] * catch_pin_slop + [1,0] * cpp_adj;
221 - catch_pin_slop - catch_pin_slop_x_extra,
222 -catch_stalk_above_gap ];
223 cppi = [ cppa[0], cppd[1] ];
224 cppc = [ cppd[0], cppb[1] ];
225 cpph = cppd + [0,-1] * catch_stalk_h;
226 cppe = cppd + [0,-1] * (catch_knob_above_gap + catch_knob_dia/2);
227 cppf = [ cppa[0], cppe[1] ];
228 cppg = [ cppa[0], cpph[1] ];
229 cppB = 0.5 * (cppf + cppe);
231 echo("RR", sm_inner_rad / bayo_nom_rad);
233 // catch assembly depression below pin
235 cppy6 = cppB[1] - (catch_knob_dia/2
236 + (cppc[1] - cppd[1])
237 + catch_stalk_below_gap);
238 cpp7 = [ cppB[0], cppy6 + catch_cr ];
239 cpp11 = cpp7 + [1,0] * catch_cr;
240 cppy9 = cppy6 + catch_strap_width * 1/3;
241 cpp9 = [ cpp7[0] + catch_cr * 2, cppy9 ];
242 cpp8 = cpp9 + [0,-1] * catch_cr;
243 cpp10 = cpp8 + [-1,0] * catch_cr;
244 cppC = [ cppxC, cpp9[1] ];
245 cppD = cppC + [0,-1] * catch_strap_width;
247 // catch assembly stalk and so on
249 catch_cr3 = catch_cr + catch_stalk_h;
251 cppF = [ cppg[0] - catch_stalk_eff_bend_rad, cppd[1] ];
252 cpp4 = [ cppg[0] - catch_stalk_len, cpph[1] ] + [1,-1] * catch_cr;
253 cpp5 = [ cpp4[0], cppC[1] + catch_cr ];
254 cpp2 = cpp5 + [-1,0] * (catch_cr * 2 + catch_stalk_base_width);
255 cpp2r = cpp2 + [1,0] * catch_cr;
256 cpp2d = cpp2 + [0,-1] * catch_cr;
257 cpp3 = [ cpp2[0] + catch_cr + catch_cr3, cppd[1] - catch_cr3 ];
258 cppA = [ -cppxC, cpp9[1] ];
259 cppE = [ cppA[0], cppD[1] ];
261 catch_assembly_dy = -cppy9 + catch_strap_width;
264 module MainProfile(){
265 main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
268 translate(main_cnr_pos){
271 circle(r = main_cnr);
272 circle(r = main_cnr * 0.5);
277 polygon([[ -top_middle_dr, middle_bot_z ],
278 [ -top_middle_dr, top_z ],
279 [ main_cnr_pos[0], top_z ],
280 [ side_thick, main_cnr_pos[1] ],
281 [ side_thick, -side_height ],
282 [ side_taper, -side_height ],
285 [ -oring_x_rad, by_oring_z ],
289 translate([ oring_mid_dia/2 - main_dia/2, 0 ])
291 translate([ 0, oring_y_rad ])
292 scale([ 1/oring_oblate * (oring_compress_more+1) , oring_oblate ])
293 circle(oring_thick/2);
294 translate([ 0, oring_y_rad*2 - oring_thick/2 ])
295 circle(oring_thick/2);
300 module StrapHoopProfile(){
301 circle(r = strap_hoop_thick/2);
304 module StrapHoop(){ ////toplevel
305 bigrad = strap_hoop_inside/2 + strap_hoop_thick/2;
306 extralen = strap_hoop_thick * 5;
309 rotate([strap_hoop_elevation, 0,0]){
310 for (x= [ -1, +1 ] * bigrad) {
311 translate([x, -extralen, 0])
313 linear_extrude(height= extralen + strap_hoop_strlen + 0.1,
317 translate([0, strap_hoop_strlen, 0]){
319 rotate_extrude(convexity=10)
320 translate([bigrad, 0,0])
323 cube([100,100,100], center=true);
327 translate([0, 50, 0])
328 cube(100, center=true);
332 module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
333 // nom_rad > real_rad
334 rotate([0,0, atan2(offset, nom_rad) ]){
336 translate([-offset, -10, 0])
338 linear_extrude(height= nom_rad*2, convexity=50)
340 translate([0,0, -25])
341 cylinder(h=50, r= real_rad);
342 translate([0,0, -25])
343 linear_extrude(height= 50, convexity=50)
345 [ -slice_size, -real_rad*2 ],
346 [ +slice_size, -real_rad*2 ] ]);
351 module RotateProject(x_min, x_max, slice_size, nom_rad, real_rad){
352 offs = [ for (i=[ x_min :
354 x_max + slice_size ]) i ];
357 RotateProjectSlice(off, slice_size, nom_rad, real_rad)
361 module BayonetCutout(){
362 RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
365 translate([-0.5 * (bayo_a[0] + bayo_d[0]), 0])
366 polygon(bayo_polygon, convexity=10);
369 module ProfilesDemo(){ ////toplevel
370 translate([-10,0]) MainProfile();
371 translate([+10, -side_height]) polygon(bayo_polygon, convexity=10);
374 module LimitForHandling(){ ////toplevel
375 hull() for (r=[0,180])
379 rotate([0,0, rs * handling_angle/2]) {
380 translate([rs * xd * main_dia/2 * tan(handling_angle/2),
381 main_dia/2 + side_thick - main_cnr,
384 cylinder(r= main_cnr, h=50);
391 hull() rotate_extrude(convexity=10){
392 translate([ handling_dia/2 - main_cnr, top_z - main_cnr ]) {
393 circle(r = main_cnr);
394 mirror([0,1]) square([ main_cnr, 50 ]);
397 //cylinder(r= handling_dia/2, h=20);
400 module Cover(){ ////toplevel
401 render() difference(){
404 rotate_extrude(convexity=10)
405 translate([main_dia/2, 0])
407 translate([0,0, middle_bot_z])
408 cylinder(h= top_thick_middle, r = main_dia/2 - top_middle_dr + 1);
414 translate([0,0, -side_height])
416 rotate([0,0, r + asin((-oring_rm_beside) / (main_dia/2))])
418 oring_mid_dia/2 + oring_thick/4 * oring_rm_scale,
420 rotate([-oring_rm_angle, 0, 0])
422 cylinder(r = oring_thick/4 * oring_rm_scale, h=20);
424 for (r=[0 : 60 : 179]) {
426 height = top_thick_middle - brace_above_below*2;
427 translate([0,0, middle_bot_z + brace_above_below + height/2 ])
428 cube(center=true, [ oring_bore - brace_end_shorter,
429 brace_hole_width, height ]);
433 if (enable_head_cups)
436 translate([-implheadcup_large_dia * .5 - implheadcup_thick/2,
437 -implheadcup_large_dia * .0,
441 // translate(strap_hoop_thick * [-0.5, 0, +1])
442 // translate([handling_dia/2, 0, -side_height])
443 // rotate([0,180,0]) rotate([0,0,90])
448 translate([0,0, -10])
449 cylinder(r= main_dia/2 - jig_rim, h=20);
452 module Jig(){ ////toplevel
455 translate([0,0, -side_height]){
456 cylinder(r= main_dia/2 + jig_thick, h= side_height + jig_thick);
458 translate([-jig_mark_rad, 0, jig_thick - jig_mark])
459 cube([jig_mark_rad*2, jig_mark, jig_mark]);
461 translate([0,0, -side_height-1])
462 cylinder(r= main_dia/2, h= side_height + 1);
464 translate([0,0, -rivet_posn])
466 translate([0,0, -100])
467 cylinder(r= jig_hole_dia/2, h = 200);
471 module CoverPrint(){ ////toplevel
472 rotate([0,180,0]) Cover();
475 module CoverTest2(){ ////toplevel
482 module CoverTest1(){ ////toplevel
486 for (r= [ 40, 147 ]){
488 translate([0,0, -10]) {
489 cube([ main_dia*3, main_dia * .53, 18], center=true);
493 // translate([ 50, 0, 0 ])
495 // strap_hoop_inside + strap_hoop_thick*2 + 1,
502 module ImplHeadCupTest(){ ////toplevel
509 module SomeStrap(width){
510 // children(0) is to add, (1) subtract
513 cylinder(r=sm_outer_rad, h=width);
514 StrapMountProtrusion(smc_cnr_c_x + sm_closure_cnr,
521 cylinder(r=sm_inner_rad, h=width+2);
523 StrapMountBolt(10, width);
525 cube([ sm_bolt_tighten_allow, 40,100 ], center=true);
530 module StrapMountBolt(l_delta, strap_width){ ///toplevel
531 // positioned relative to smc_pos
532 translate([(smc_bolt_nut_eff_thick - sm_bolt_head_thick)/2,
535 translate([ -sm_bolt_shaft/2-1, 0,0 ]){
536 rotate([0,90,0]) cylinder(r= sm_bolt_dia/2, h= sm_bolt_shaft+2);
538 translate([ -sm_bolt_shaft/2, 0,0 ])
540 cylinder($fn=6, r=smc_bolt_nut_dia/2,
541 h=smc_bolt_nut_eff_thick + l_delta);
542 translate([ sm_bolt_shaft/2, 0,0 ])
544 cylinder(r=sm_bolt_head_dia/2, h=sm_bolt_head_thick + l_delta);
548 module StrapMountProtrusion(half_x, max_y, cnr, width){
550 linear_extrude(height=width, convexity=10){
552 for (m = [0,1]) mirror([m,0,0]) {
553 translate([-(half_x - cnr), max_y - cnr])
555 translate([-half_x, -sm_inner_rad])
563 module StrapMount(){ ////toplevel
564 SomeStrap(sm_main_width){
566 StrapMountProtrusion(strap_hoop_inside/2 + strap_hoop_thick,
571 [0,0, sm_main_width] +
572 strap_hoop_thick * [ 0, 0.5, -1.0 ])
579 module CatchAssemblyCoreProfile(){
583 translate(cpp3) circle(r= catch_cr3);
602 translate(cpp8) circle(r= catch_cr);
605 translate(cpp4) circle(r= catch_cr);
606 translate(cpp5) circle(r= catch_cr);
607 translate(cpp7) circle(r= catch_cr);
615 translate(cpp2) circle(r= catch_cr);
617 // if cpp11 is above cpp10, the subtracted hull above
618 // can go down too far. Ensure we do not cut off below cppy6.
623 [ cpp7[0] - catch_cr, cppy6 ],
628 module CatchTipProfile(dy){
633 // circle(r = dist2d(cppF, cppd));
634 //circle(r = dist2d(cppF, cppa));
645 module CatchHeadProfile(){
655 module CatchCore(){ /////toplevel
656 linear_extrude(height=catch_strap_thick, convexity=10)
657 CatchAssemblyCoreProfile();
660 linear_extrude(height=catch_head_th, convexity=10)
662 linear_extrude(height=catch_tip_th, convexity=10)
663 CatchTipProfile(catch_tip_th - catch_head_th);
666 linear_extrude(height=catch_head_th, convexity=10)
669 translate(concat(cppB,[0])) hull(){
670 translate([0,0, catch_knob_height + catch_head_th - catch_knob_dia/2])
671 sphere(r = catch_knob_dia/2);
672 cylinder(r = catch_knob_dia/2, h = 0.1);
676 module CatchPreDistort(){ /////toplevel
677 scale(100 / sm_inner_rad)
682 module CatchAssembly(){ /////toplevel
683 rotate([0,0, -(cppe[0] + cppB[0] + catch_pin_slop) / sm_inner_rad * 360/TAU])
684 translate([0,0, catch_assembly_dy])
685 scale(sm_inner_rad / 100)
686 import(str("poster-tube-lid,CatchPostDistort-fa",
691 SomeStrap(catch_strap_width){
694 translate([-200, -200, -200])
695 cube([400, 200, 400]);
700 module CatchDemo(){ /////toplevel
701 color("blue") translate([0,0,
705 translate([0,0,+side_height
710 module CatchDemoS(){ /////toplevel
711 color("blue") translate([0,0,
716 translate([0,0,+side_height
719 mirror([0,1,0]) translate([-250,33,0]) cube([500,500,500]);
723 cube([6.15, 2,2], center=true);
726 module CatchPinProfileDemo(){ /////toplevel
727 translate([0, 0 * -bayo_behind,0]) {
729 bayo_n[0] - bayo_e[0]);
730 color("blue") translate([0,0,
733 CatchAssemblyCoreProfile();
740 polygon(bayo_polygon, convexity=10);
742 // adhoc show a position
747 )) difference(){ circle(2.5); circle(2.0); }