5 main_dia = 71.2 + 0.50 - 2.26;
7 top_thick_by_oring = 3.0;
14 rivet_posn = 6.0 + 0.6;
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;
61 bayo_entry_x = bayo_entry;
62 bayo_entry_z = bayo_entry;
63 bayo_inramp_x = bayo_entry;
64 bayo_inramp_z = bayo_entry;
66 oring_mid_dia = oring_bore + oring_thick;
67 oring_outer_dia = oring_mid_dia + oring_thick;
69 oring_oblate = (1 - oring_compress);
71 oring_y_rad = oring_thick/2 * oring_oblate;
72 oring_x_rad = oring_thick/2 / oring_oblate;
74 by_oring_z = oring_y_rad * (1 + cos(oring_upper_embed_angle));
76 side_height = rivet_posn + bayo_behind + rivet_thick/2;
77 side_thick = rivet_tall + over_rivet_wall;
79 top_z = top_thick_by_oring + oring_y_rad + by_oring_z;
81 middle_bot_z = top_z - top_thick_middle;
83 bayo_entry = bayo_behind / 3.0;
84 bayo_top_z = bayo_behind + bayo_gap;
86 rivet_entry_width = rivet_width + side_rivet_gap;
88 jig_mark_rad = jig_mark + main_dia/2 + jig_thick;
90 handling_dia = oring_bore + oring_thick*2 + min_wall*2;
93 $fs= coarse ? 2.5 : 0.5;
98 bayo_a = [ bayo_entry_x, 0 ];
99 bayo_p = [ 0, bayo_entry_z ];
100 bayo_n = [ 0, bayo_behind-bayo_inramp_z ];
101 bayo_m = [ bayo_inramp_x, bayo_behind ];
102 bayo_l = bayo_m + bayo_interf * [ 1/bayo_interf_slope, 1 ];
103 bayo_k = bayo_l + [ bayo_interf_width, 0 ];
104 bayo_j = bayo_k + bayo_interf * [ 1/bayo_interf_slope, -1 ];
105 bayo_i = bayo_j + [ rivet_width + inside_rivet_gap, 0 ];
106 bayo_h = [ bayo_i[0], bayo_behind + bayo_gap + bayo_interf ];
107 bayo_g = [ bayo_m[0] - rivet_width, bayo_h[1] ];
109 bayo_e = [-bayo_p[0], bayo_p[1]] - [rivet_entry_width,0];
110 bayo_d = [-bayo_a[0], bayo_a[1]] - [rivet_entry_width,0];
111 bayo_c = bayo_d + [0,-5];
112 bayo_b = bayo_a + [0,-5];
114 bayo_f = [ bayo_e[0], bayo_g[1] + (bayo_e[0] - bayo_g[0]) ];
116 bayo_polygon = [ bayo_a,
134 module MainProfile(){
135 main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
138 translate(main_cnr_pos){
141 circle(r = main_cnr);
142 circle(r = main_cnr * 0.5);
147 polygon([[ -top_middle_dr, middle_bot_z ],
148 [ -top_middle_dr, top_z ],
149 [ main_cnr_pos[0], top_z ],
150 [ side_thick, main_cnr_pos[1] ],
151 [ side_thick, -side_height ],
152 [ side_taper, -side_height ],
155 [ -oring_x_rad, by_oring_z ],
159 translate([ oring_mid_dia/2 - main_dia/2, 0 ])
161 translate([ 0, oring_y_rad ])
162 scale([ 1/oring_oblate, oring_oblate ])
163 circle(oring_thick/2);
164 translate([ 0, oring_y_rad*2 - oring_thick/2 ])
165 circle(oring_thick/2);
170 module StrapHoopProfile(){
171 circle(r = strap_hoop_thick/2);
174 module StrapHoop(){ ////toplevel
175 bigrad = strap_hoop_inside + strap_hoop_thick/2;
176 extralen = strap_hoop_thick;
178 for (x= [ -1, +1 ] * bigrad) {
179 translate([x, -extralen, 0])
181 linear_extrude(height= extralen + strap_hoop_strlen + 0.1,
185 translate([0, strap_hoop_strlen, 0]){
187 rotate_extrude(convexity=10)
188 translate([bigrad, 0,0])
191 cube([100,100,100], center=true);
196 module HandlingProfile(){
200 module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
201 // nom_rad > real_rad
202 rotate([0,0, atan2(offset, nom_rad) ]){
204 translate([-offset, -10, 0])
206 linear_extrude(height= nom_rad*2)
208 translate([0,0, -25])
209 cylinder(h=50, r= real_rad);
210 translate([0,0, -25])
211 linear_extrude(height= 50)
213 [ -slice_size, -real_rad*2 ],
214 [ +slice_size, -real_rad*2 ] ]);
219 module RotateProject(x_min, x_max, slice_size, nom_rad, real_rad){
220 offs = [ for (i=[ x_min :
222 x_max + slice_size ]) i ];
225 RotateProjectSlice(off, slice_size, nom_rad, real_rad)
229 module BayonetCutout(){
230 RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
231 main_dia/2 + side_thick,
232 main_dia/2 + rivet_tall)
233 translate([-0.5 * (bayo_a[0] + bayo_d[0]), 0])
234 polygon(bayo_polygon, convexity=10);
237 module ProfilesDemo(){ ////toplevel
238 translate([-10,0]) MainProfile();
239 translate([+10, -side_height]) polygon(bayo_polygon, convexity=10);
242 module LimitForHandling(){ ////toplevel
243 hull() for (r=[0,180])
247 rotate([0,0, rs * handling_angle/2]) {
248 translate([rs * xd * main_dia/2 * tan(handling_angle/2),
249 main_dia/2 + side_thick - main_cnr,
252 cylinder(r= main_cnr, h=50);
259 hull() rotate_extrude(){
260 translate([ handling_dia/2 - main_cnr, top_z - main_cnr ]) {
261 circle(r = main_cnr);
262 mirror([0,1]) square([ main_cnr, 50 ]);
265 //cylinder(r= handling_dia/2, h=20);
268 module Cover(){ ////toplevel
269 render() difference(){
272 rotate_extrude(convexity=10)
273 translate([main_dia/2, 0])
275 translate([0,0, middle_bot_z])
276 cylinder(h= top_thick_middle, r = main_dia/2 - top_middle_dr + 1);
282 translate([0,0, -side_height])
284 rotate([0,0, r + asin((-oring_rm_beside) / (main_dia/2))])
286 oring_mid_dia/2 + oring_thick/4 * oring_rm_scale,
288 rotate([-oring_rm_angle, 0, 0])
290 cylinder(r = oring_thick/4 * oring_rm_scale, h=20);
292 for (r=[0 : 60 : 179]) {
294 height = top_thick_middle - brace_above_below*2;
295 translate([0,0, middle_bot_z + brace_above_below + height/2 ])
296 cube(center=true, [ oring_bore - brace_end_shorter,
297 brace_hole_width, height ]);
304 translate([0,0, -10])
305 cylinder(r= main_dia/2 - jig_rim, h=20);
308 module Jig(){ ////toplevel
311 translate([0,0, -side_height]){
312 cylinder(r= main_dia/2 + jig_thick, h= side_height + jig_thick);
314 translate([-jig_mark_rad, 0, jig_thick - jig_mark])
315 cube([jig_mark_rad*2, jig_mark, jig_mark]);
317 translate([0,0, -side_height-1])
318 cylinder(r= main_dia/2, h= side_height + 1);
320 translate([0,0, -rivet_posn])
322 translate([0,0, -100])
323 cylinder(r= jig_hole_dia/2, h = 200);
327 module CoverTest2(){ ////toplevel
334 module CoverTest1(){ ////toplevel
337 for (r= [ 40, 147 ]){
339 translate([0,0, -10]) {
340 cube([ main_dia*3, main_dia * .55, 18], center=true);