3 main_dia = 71.2 + 0.50 - 2.26;
10 rivet_width = 4.15 + 1.0;
11 rivet_tall = 5.51 + 0.49;
13 over_rivet_wall = 0.5;
18 bayo_interf_width = 2.0;
19 bayo_interf_slope = 0.75;
24 oring_upper_embed_angle = 45;
25 oring_compress = 0.1; // proportion
31 bayo_entry = bayo_behind/3;
35 brace_hole_width = 1.0;
36 brace_above_below = 1.2;
45 bayo_entry_x = bayo_entry;
46 bayo_entry_z = bayo_entry;
47 bayo_inramp_x = bayo_entry;
48 bayo_inramp_z = bayo_entry;
50 oring_mid_dia = oring_bore + oring_thick;
51 oring_outer_dia = oring_mid_dia + oring_thick;
53 oring_oblate = (1 - oring_compress);
55 oring_y_rad = oring_thick/2 * oring_oblate;
56 oring_x_rad = oring_thick/2 / oring_oblate;
58 seal_thick = oring_y_rad * (1 + cos(oring_upper_embed_angle));
60 side_height = rivet_posn + bayo_behind + rivet_thick/2;
61 side_thick = rivet_tall + over_rivet_wall;
63 top_z = top_thick + seal_thick;
65 bayo_entry = bayo_behind / 3.0;
66 bayo_top_z = bayo_behind + rivet_thick + bayo_above_gap;
67 bayo_entry_ramp = bayo_entry + bayo_interf;
69 rivet_entry_width = rivet_width + side_rivet_gap;
71 jig_mark_rad = jig_mark + main_dia/2 + jig_thick;
78 bayo_a = [ bayo_entry_x, 0 ];
79 bayo_p = [ 0, bayo_entry_z ];
80 bayo_n = [ 0, bayo_behind-bayo_inramp_z ];
81 bayo_m = [ bayo_inramp_x, bayo_behind ];
82 bayo_l = bayo_m + bayo_interf * [ 1/bayo_interf_slope, 1 ];
83 bayo_k = bayo_l + [ bayo_interf_width, 0 ];
84 bayo_j = bayo_k + bayo_interf * [ 1/bayo_interf_slope, -1 ];
85 bayo_i = bayo_j + [ rivet_width, 0 ];
86 bayo_h = [ bayo_i[0], bayo_behind + rivet_thick + bayo_above_gap ];
87 bayo_g = [ bayo_m[0] - rivet_width, bayo_h[1] ];
89 bayo_e = [-bayo_p[0], bayo_p[1]] - [rivet_entry_width,0];
90 bayo_d = [-bayo_a[0], bayo_a[1]] - [rivet_entry_width,0];
91 bayo_c = bayo_d + [0,-5];
92 bayo_b = bayo_a + [0,-5];
94 bayo_f = [ bayo_e[0], bayo_g[1] + (bayo_e[0] - bayo_g[0]) ];
96 bayo_polygon = [ bayo_a,
114 module MainProfile(){
115 main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
118 translate(main_cnr_pos){
121 circle(r = main_cnr);
122 circle(r = main_cnr * 0.5);
127 polygon([[ -11, seal_thick ],
129 [ main_cnr_pos[0], top_z ],
130 [ side_thick, main_cnr_pos[1] ],
131 [ side_thick, -side_height ],
132 [ side_taper, -side_height ],
138 %translate([ oring_mid_dia/2 - main_dia/2,
140 scale([ 1/oring_oblate, oring_oblate ])
141 circle(oring_thick/2);
145 module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
146 // nom_rad > real_rad
147 rotate([0,0, atan2(offset, nom_rad) ]){
149 translate([-offset, -10, 0])
151 linear_extrude(height= nom_rad*2)
153 translate([0,0, -25])
154 cylinder(h=50, r= real_rad);
155 translate([0,0, -25])
156 linear_extrude(height= 50)
158 [ -slice_size, -real_rad*2 ],
159 [ +slice_size, -real_rad*2 ] ]);
164 module RotateProject(x_min, x_max, slice_size, nom_rad, real_rad){
165 offs = [ for (i=[ x_min :
167 x_max + slice_size ]) i ];
170 RotateProjectSlice(off, slice_size, nom_rad, real_rad)
174 module BayonetCutout(){
175 RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
176 main_dia/2 + side_thick,
177 main_dia/2 + rivet_tall)
178 polygon(bayo_polygon, convexity=10);
181 module ProfilesDemo(){ ////toplevel
182 translate([-20,0]) MainProfile();
183 polygon(bayo_polygon, convexity=10);
186 module Cover(){ ////toplevel
187 render() difference(){
189 rotate_extrude(convexity=10)
190 translate([main_dia/2, 0])
192 translate([0,0, seal_thick])
193 cylinder(h= top_thick, r = main_dia/2 - 10);
197 translate([0,0, -side_height])
199 for (r=[0 : 60 : 179]) {
201 height = top_thick - brace_above_below*2;
202 translate([0,0, seal_thick + brace_above_below + height/2 ])
203 cube(center=true, [ main_dia, brace_hole_width, height ]);
210 translate([0,0, -10])
211 cylinder(r= main_dia/2 - jig_rim, h=20);
214 module Jig(){ ////toplevel
217 translate([0,0, -side_height]){
218 cylinder(r= main_dia/2 + jig_thick, h= side_height + jig_thick);
220 translate([-jig_mark_rad, 0, jig_thick - jig_mark])
221 cube([jig_mark_rad*2, jig_mark, jig_mark]);
223 translate([0,0, -side_height-1])
224 cylinder(r= main_dia/2, h= side_height + 1);
226 translate([0,0, -rivet_posn])
228 translate([0,0, -100])
229 cylinder(r= jig_hole_dia/2, h = 200);
233 module CoverTest2(){ ////toplevel
240 module CoverTest1(){ ////toplevel
243 translate([0,0, -10])
244 cube([ main_dia*3, main_dia * .85, 20], center=true);