5 main_dia = 71.2 + 0.50 - 2.26;
7 top_thick_by_oring = 3.0;
14 rivet_width = 4.15 + 1.0;
15 rivet_tall = 5.51 + 1.49;
17 over_rivet_wall = 1.0;
22 bayo_interf_width = 2.0;
23 bayo_interf_slope = 0.75;
28 oring_upper_embed_angle = 80;
29 oring_compress = 0.05; // proportion
39 bayo_entry = bayo_behind/3;
41 bayo_slice_size = coarse ? 5 : 1;
43 brace_hole_width = 1.0;
44 brace_above_below = 1.2;
45 brace_end_shorter = 0.3;
54 bayo_entry_x = bayo_entry;
55 bayo_entry_z = bayo_entry;
56 bayo_inramp_x = bayo_entry;
57 bayo_inramp_z = bayo_entry;
59 oring_mid_dia = oring_bore + oring_thick;
60 oring_outer_dia = oring_mid_dia + oring_thick;
62 oring_oblate = (1 - oring_compress);
64 oring_y_rad = oring_thick/2 * oring_oblate;
65 oring_x_rad = oring_thick/2 / oring_oblate;
67 by_oring_z = oring_y_rad * (1 + cos(oring_upper_embed_angle));
69 side_height = rivet_posn + bayo_behind + rivet_thick/2;
70 side_thick = rivet_tall + over_rivet_wall;
72 top_z = top_thick_by_oring + oring_y_rad + by_oring_z;
74 middle_bot_z = top_z - top_thick_middle;
76 bayo_entry = bayo_behind / 3.0;
77 bayo_top_z = bayo_behind + rivet_thick + bayo_above_gap;
78 bayo_entry_ramp = bayo_entry + bayo_interf;
80 rivet_entry_width = rivet_width + side_rivet_gap;
82 jig_mark_rad = jig_mark + main_dia/2 + jig_thick;
84 $fs= coarse ? 2.5 : 0.5;
89 bayo_a = [ bayo_entry_x, 0 ];
90 bayo_p = [ 0, bayo_entry_z ];
91 bayo_n = [ 0, bayo_behind-bayo_inramp_z ];
92 bayo_m = [ bayo_inramp_x, bayo_behind ];
93 bayo_l = bayo_m + bayo_interf * [ 1/bayo_interf_slope, 1 ];
94 bayo_k = bayo_l + [ bayo_interf_width, 0 ];
95 bayo_j = bayo_k + bayo_interf * [ 1/bayo_interf_slope, -1 ];
96 bayo_i = bayo_j + [ rivet_width, 0 ];
97 bayo_h = [ bayo_i[0], bayo_behind + rivet_thick
98 + bayo_above_gap + bayo_interf ];
99 bayo_g = [ bayo_m[0] - rivet_width, bayo_h[1] ];
101 bayo_e = [-bayo_p[0], bayo_p[1]] - [rivet_entry_width,0];
102 bayo_d = [-bayo_a[0], bayo_a[1]] - [rivet_entry_width,0];
103 bayo_c = bayo_d + [0,-5];
104 bayo_b = bayo_a + [0,-5];
106 bayo_f = [ bayo_e[0], bayo_g[1] + (bayo_e[0] - bayo_g[0]) ];
108 bayo_polygon = [ bayo_a,
126 module MainProfile(){
127 main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
130 translate(main_cnr_pos){
133 circle(r = main_cnr);
134 circle(r = main_cnr * 0.5);
139 polygon([[ -top_middle_dr, middle_bot_z ],
140 [ -top_middle_dr, top_z ],
141 [ main_cnr_pos[0], top_z ],
142 [ side_thick, main_cnr_pos[1] ],
143 [ side_thick, -side_height ],
144 [ side_taper, -side_height ],
147 [ -oring_x_rad, by_oring_z ],
151 translate([ oring_mid_dia/2 - main_dia/2, 0 ])
153 translate([ 0, oring_y_rad ])
154 scale([ 1/oring_oblate, oring_oblate ])
155 circle(oring_thick/2);
156 translate([ 0, oring_y_rad*2 - oring_thick/2 ])
157 circle(oring_thick/2);
162 module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
163 // nom_rad > real_rad
164 rotate([0,0, atan2(offset, nom_rad) ]){
166 translate([-offset, -10, 0])
168 linear_extrude(height= nom_rad*2)
170 translate([0,0, -25])
171 cylinder(h=50, r= real_rad);
172 translate([0,0, -25])
173 linear_extrude(height= 50)
175 [ -slice_size, -real_rad*2 ],
176 [ +slice_size, -real_rad*2 ] ]);
181 module RotateProject(x_min, x_max, slice_size, nom_rad, real_rad){
182 offs = [ for (i=[ x_min :
184 x_max + slice_size ]) i ];
187 RotateProjectSlice(off, slice_size, nom_rad, real_rad)
191 module BayonetCutout(){
192 RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
193 main_dia/2 + side_thick,
194 main_dia/2 + rivet_tall)
195 polygon(bayo_polygon, convexity=10);
198 module ProfilesDemo(){ ////toplevel
199 translate([-10,0]) MainProfile();
200 translate([+10,0]) polygon(bayo_polygon, convexity=10);
203 module Cover(){ ////toplevel
204 render() difference(){
206 rotate_extrude(convexity=10)
207 translate([main_dia/2, 0])
209 translate([0,0, middle_bot_z])
210 cylinder(h= top_thick_middle, r = main_dia/2 - top_middle_dr + 1);
214 translate([0,0, -side_height])
216 rotate([0,0, r + asin((bayo_d[0] - oring_rm_beside) / (main_dia/2))])
218 oring_mid_dia/2 + oring_thick/4 * oring_rm_scale,
220 rotate([-oring_rm_angle, 0, 0])
222 cylinder(r = oring_thick/4 * oring_rm_scale, h=20);
224 for (r=[0 : 60 : 179]) {
226 height = top_thick_middle - brace_above_below*2;
227 translate([0,0, middle_bot_z + brace_above_below + height/2 ])
228 cube(center=true, [ oring_bore - brace_end_shorter,
229 brace_hole_width, height ]);
236 translate([0,0, -10])
237 cylinder(r= main_dia/2 - jig_rim, h=20);
240 module Jig(){ ////toplevel
243 translate([0,0, -side_height]){
244 cylinder(r= main_dia/2 + jig_thick, h= side_height + jig_thick);
246 translate([-jig_mark_rad, 0, jig_thick - jig_mark])
247 cube([jig_mark_rad*2, jig_mark, jig_mark]);
249 translate([0,0, -side_height-1])
250 cylinder(r= main_dia/2, h= side_height + 1);
252 translate([0,0, -rivet_posn])
254 translate([0,0, -100])
255 cylinder(r= jig_hole_dia/2, h = 200);
259 module CoverTest2(){ ////toplevel
266 module CoverTest1(){ ////toplevel
269 for (r= [ 40, 147 ]){
271 translate([0,0, -10]) {
272 cube([ main_dia*3, main_dia * .55, 18], center=true);