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 = 80;
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, 0 ])
140 translate([ 0, oring_y_rad ])
141 scale([ 1/oring_oblate, oring_oblate ])
142 circle(oring_thick/2);
143 translate([ 0, oring_y_rad*2 - oring_thick/2 ])
144 circle(oring_thick/2);
149 module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
150 // nom_rad > real_rad
151 rotate([0,0, atan2(offset, nom_rad) ]){
153 translate([-offset, -10, 0])
155 linear_extrude(height= nom_rad*2)
157 translate([0,0, -25])
158 cylinder(h=50, r= real_rad);
159 translate([0,0, -25])
160 linear_extrude(height= 50)
162 [ -slice_size, -real_rad*2 ],
163 [ +slice_size, -real_rad*2 ] ]);
168 module RotateProject(x_min, x_max, slice_size, nom_rad, real_rad){
169 offs = [ for (i=[ x_min :
171 x_max + slice_size ]) i ];
174 RotateProjectSlice(off, slice_size, nom_rad, real_rad)
178 module BayonetCutout(){
179 RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
180 main_dia/2 + side_thick,
181 main_dia/2 + rivet_tall)
182 polygon(bayo_polygon, convexity=10);
185 module ProfilesDemo(){ ////toplevel
186 translate([-20,0]) MainProfile();
187 polygon(bayo_polygon, convexity=10);
190 module Cover(){ ////toplevel
191 render() difference(){
193 rotate_extrude(convexity=10)
194 translate([main_dia/2, 0])
196 translate([0,0, seal_thick])
197 cylinder(h= top_thick, r = main_dia/2 - 10);
201 translate([0,0, -side_height])
203 for (r=[0 : 60 : 179]) {
205 height = top_thick - brace_above_below*2;
206 translate([0,0, seal_thick + brace_above_below + height/2 ])
207 cube(center=true, [ main_dia, brace_hole_width, height ]);
214 translate([0,0, -10])
215 cylinder(r= main_dia/2 - jig_rim, h=20);
218 module Jig(){ ////toplevel
221 translate([0,0, -side_height]){
222 cylinder(r= main_dia/2 + jig_thick, h= side_height + jig_thick);
224 translate([-jig_mark_rad, 0, jig_thick - jig_mark])
225 cube([jig_mark_rad*2, jig_mark, jig_mark]);
227 translate([0,0, -side_height-1])
228 cylinder(r= main_dia/2, h= side_height + 1);
230 translate([0,0, -rivet_posn])
232 translate([0,0, -100])
233 cylinder(r= jig_hole_dia/2, h = 200);
237 module CoverTest2(){ ////toplevel
244 module CoverTest1(){ ////toplevel
247 translate([0,0, -10])
248 cube([ main_dia*3, main_dia * .85, 20], center=true);