5 main_dia = 71.2 + 0.50 - 2.26;
7 top_thick_by_oring = 3.0;
14 rivet_posn = 6.0 + 0.1;
16 rivet_width = 4.15 + 1.0;
17 rivet_tall = 5.51 + 1.49;
19 over_rivet_wall = 1.0;
21 inside_rivet_gap = 1.5;
25 bayo_interf_width = 2.0;
26 bayo_interf_slope = 0.5;
31 oring_upper_embed_angle = 80;
32 oring_compress = 0.1; // proportion
42 bayo_entry = bayo_behind/3;
44 bayo_slice_size = coarse ? 5 : 1;
46 brace_hole_width = 1.0;
47 brace_above_below = 1.2;
48 brace_end_shorter = 0.3;
56 strap_hoop_inside = 10;
57 strap_hoop_strlen = 10;
58 strap_hoop_elevation = 45;
60 sm_inner_circum = 239;
66 sm_bolt_head_dia = 6.94 + 1.0;
67 sm_bolt_head_thick = 2.14;
68 sm_bolt_nut_width = 5.89 + 0.25;
69 sm_bolt_nut_thick = 3.68;
71 sm_bolt_y_clear = 0.5;
80 bayo_entry_x = bayo_entry;
81 bayo_entry_z = bayo_entry;
82 bayo_inramp_x = bayo_entry;
83 bayo_inramp_z = bayo_entry;
85 oring_mid_dia = oring_bore + oring_thick;
86 oring_outer_dia = oring_mid_dia + oring_thick;
88 oring_oblate = (1 - oring_compress);
90 oring_y_rad = oring_thick/2 * oring_oblate;
91 oring_x_rad = oring_thick/2 / oring_oblate;
93 by_oring_z = oring_y_rad * (1 + cos(oring_upper_embed_angle));
95 side_height = rivet_posn + bayo_behind + rivet_thick/2;
96 side_thick = rivet_tall + over_rivet_wall;
98 top_z = top_thick_by_oring + oring_y_rad + by_oring_z;
100 middle_bot_z = top_z - top_thick_middle;
102 bayo_entry = bayo_behind / 3.0;
103 bayo_top_z = bayo_behind + bayo_gap;
105 rivet_entry_width = rivet_width + side_rivet_gap;
107 jig_mark_rad = jig_mark + main_dia/2 + jig_thick;
109 handling_dia = oring_bore + oring_thick*2 + min_wall*2;
112 sm_inner_rad = sm_inner_circum / TAU;
113 sm_outer_rad = sm_inner_rad + sm_main_thick;
115 smc_pos = [ 0, sm_inner_rad, 0 ];
117 smc_bolt_nut_dia = sm_bolt_nut_width / cos(30);
119 smc_bolt_y = sm_bolt_dia/2 + sm_bolt_y_clear;
120 smc_max_y = smc_bolt_y + sm_bolt_y_over
121 + max(sm_bolt_head_dia/2, smc_bolt_nut_dia/2);
122 smc_cnr_c_x = sm_bolt_shaft/2 - sm_closure_cnr
123 + max(sm_bolt_head_thick, sm_bolt_nut_thick);
125 $fs= coarse ? 2.5 : 0.5;
128 // bayonet definition
130 bayo_a = [ bayo_entry_x, 0 ];
131 bayo_p = [ 0, bayo_entry_z ];
132 bayo_n = [ 0, bayo_behind-bayo_inramp_z ];
133 bayo_m = [ bayo_inramp_x, bayo_behind ];
134 bayo_l = bayo_m + bayo_interf * [ 1/bayo_interf_slope, 1 ];
135 bayo_k = bayo_l + [ bayo_interf_width, 0 ];
136 bayo_j = bayo_k + bayo_interf * [ 1/bayo_interf_slope, -1 ];
137 bayo_i = bayo_j + [ rivet_width + inside_rivet_gap, 0 ];
138 bayo_h = [ bayo_i[0], bayo_behind + bayo_gap + bayo_interf ];
139 bayo_g = [ bayo_m[0] - rivet_width, bayo_h[1] ];
141 bayo_e = [-bayo_p[0], bayo_p[1]] - [rivet_entry_width,0];
142 bayo_d = [-bayo_a[0], bayo_a[1]] - [rivet_entry_width,0];
143 bayo_c = bayo_d + [0,-5];
144 bayo_b = bayo_a + [0,-5];
146 bayo_f = [ bayo_e[0], bayo_g[1] + (bayo_e[0] - bayo_g[0]) ];
148 bayo_polygon = [ bayo_a,
166 module MainProfile(){
167 main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
170 translate(main_cnr_pos){
173 circle(r = main_cnr);
174 circle(r = main_cnr * 0.5);
179 polygon([[ -top_middle_dr, middle_bot_z ],
180 [ -top_middle_dr, top_z ],
181 [ main_cnr_pos[0], top_z ],
182 [ side_thick, main_cnr_pos[1] ],
183 [ side_thick, -side_height ],
184 [ side_taper, -side_height ],
187 [ -oring_x_rad, by_oring_z ],
191 translate([ oring_mid_dia/2 - main_dia/2, 0 ])
193 translate([ 0, oring_y_rad ])
194 scale([ 1/oring_oblate, oring_oblate ])
195 circle(oring_thick/2);
196 translate([ 0, oring_y_rad*2 - oring_thick/2 ])
197 circle(oring_thick/2);
202 module StrapHoopProfile(){
203 circle(r = strap_hoop_thick/2);
206 module StrapHoop(){ ////toplevel
207 bigrad = strap_hoop_inside/2 + strap_hoop_thick/2;
208 extralen = strap_hoop_thick * 5;
211 rotate([strap_hoop_elevation, 0,0]){
212 for (x= [ -1, +1 ] * bigrad) {
213 translate([x, -extralen, 0])
215 linear_extrude(height= extralen + strap_hoop_strlen + 0.1,
219 translate([0, strap_hoop_strlen, 0]){
221 rotate_extrude(convexity=10)
222 translate([bigrad, 0,0])
225 cube([100,100,100], center=true);
229 translate([0, 50, 0])
230 cube(100, center=true);
234 module HandlingProfile(){
238 module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
239 // nom_rad > real_rad
240 rotate([0,0, atan2(offset, nom_rad) ]){
242 translate([-offset, -10, 0])
244 linear_extrude(height= nom_rad*2)
246 translate([0,0, -25])
247 cylinder(h=50, r= real_rad);
248 translate([0,0, -25])
249 linear_extrude(height= 50)
251 [ -slice_size, -real_rad*2 ],
252 [ +slice_size, -real_rad*2 ] ]);
257 module RotateProject(x_min, x_max, slice_size, nom_rad, real_rad){
258 offs = [ for (i=[ x_min :
260 x_max + slice_size ]) i ];
263 RotateProjectSlice(off, slice_size, nom_rad, real_rad)
267 module BayonetCutout(){
268 RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
269 main_dia/2 + side_thick,
270 main_dia/2 + rivet_tall)
271 translate([-0.5 * (bayo_a[0] + bayo_d[0]), 0])
272 polygon(bayo_polygon, convexity=10);
275 module ProfilesDemo(){ ////toplevel
276 translate([-10,0]) MainProfile();
277 translate([+10, -side_height]) polygon(bayo_polygon, convexity=10);
280 module LimitForHandling(){ ////toplevel
281 hull() for (r=[0,180])
285 rotate([0,0, rs * handling_angle/2]) {
286 translate([rs * xd * main_dia/2 * tan(handling_angle/2),
287 main_dia/2 + side_thick - main_cnr,
290 cylinder(r= main_cnr, h=50);
297 hull() rotate_extrude(){
298 translate([ handling_dia/2 - main_cnr, top_z - main_cnr ]) {
299 circle(r = main_cnr);
300 mirror([0,1]) square([ main_cnr, 50 ]);
303 //cylinder(r= handling_dia/2, h=20);
306 module Cover(){ ////toplevel
307 render() difference(){
310 rotate_extrude(convexity=10)
311 translate([main_dia/2, 0])
313 translate([0,0, middle_bot_z])
314 cylinder(h= top_thick_middle, r = main_dia/2 - top_middle_dr + 1);
320 translate([0,0, -side_height])
322 rotate([0,0, r + asin((-oring_rm_beside) / (main_dia/2))])
324 oring_mid_dia/2 + oring_thick/4 * oring_rm_scale,
326 rotate([-oring_rm_angle, 0, 0])
328 cylinder(r = oring_thick/4 * oring_rm_scale, h=20);
330 for (r=[0 : 60 : 179]) {
332 height = top_thick_middle - brace_above_below*2;
333 translate([0,0, middle_bot_z + brace_above_below + height/2 ])
334 cube(center=true, [ oring_bore - brace_end_shorter,
335 brace_hole_width, height ]);
339 // translate(strap_hoop_thick * [-0.5, 0, +1])
340 // translate([handling_dia/2, 0, -side_height])
341 // rotate([0,180,0]) rotate([0,0,90])
346 translate([0,0, -10])
347 cylinder(r= main_dia/2 - jig_rim, h=20);
350 module Jig(){ ////toplevel
353 translate([0,0, -side_height]){
354 cylinder(r= main_dia/2 + jig_thick, h= side_height + jig_thick);
356 translate([-jig_mark_rad, 0, jig_thick - jig_mark])
357 cube([jig_mark_rad*2, jig_mark, jig_mark]);
359 translate([0,0, -side_height-1])
360 cylinder(r= main_dia/2, h= side_height + 1);
362 translate([0,0, -rivet_posn])
364 translate([0,0, -100])
365 cylinder(r= jig_hole_dia/2, h = 200);
369 module CoverTest2(){ ////toplevel
376 module CoverTest1(){ ////toplevel
380 for (r= [ 40, 147 ]){
382 translate([0,0, -10]) {
383 cube([ main_dia*3, main_dia * .53, 18], center=true);
387 // translate([ 50, 0, 0 ])
389 // strap_hoop_inside + strap_hoop_thick*2 + 1,
396 module StrapMountBolt(l_delta){ ///toplevel
397 // positioned relative to smc_pos
398 translate([(sm_bolt_nut_thick - sm_bolt_head_thick)/2,
401 translate([ -sm_bolt_shaft/2-1, 0,0 ]){
402 rotate([0,90,0]) cylinder(r= sm_bolt_dia/2, h= sm_bolt_shaft+2);
404 translate([ -sm_bolt_shaft/2, 0,0 ])
406 cylinder($fn=6, r=smc_bolt_nut_dia/2, h=sm_bolt_nut_thick + l_delta);
407 translate([ sm_bolt_shaft/2, 0,0 ])
409 cylinder(r=sm_bolt_head_dia/2, h=sm_bolt_head_thick + l_delta);
413 module StrapMountProtrusion(half_x, max_y, cnr){
415 linear_extrude(height=sm_main_width, convexity=10){
417 for (m = [0,1]) mirror([m,0,0]) {
418 translate([-(half_x - cnr), max_y - cnr])
420 translate([-half_x, -sm_inner_rad])
428 module StrapMount(){ ////toplevel
431 cylinder(r=sm_outer_rad, h=sm_main_width);
432 StrapMountProtrusion(smc_cnr_c_x + sm_closure_cnr,
437 cylinder(r=sm_inner_rad, h=sm_main_width+2);