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 = 0.1; // proportion
35 bayo_entry = bayo_behind/3;
37 bayo_slice_size = coarse ? 5 : 1;
39 brace_hole_width = 1.0;
40 brace_above_below = 1.2;
41 brace_end_shorter = 0.3;
50 bayo_entry_x = bayo_entry;
51 bayo_entry_z = bayo_entry;
52 bayo_inramp_x = bayo_entry;
53 bayo_inramp_z = bayo_entry;
55 oring_mid_dia = oring_bore + oring_thick;
56 oring_outer_dia = oring_mid_dia + oring_thick;
58 oring_oblate = (1 - oring_compress);
60 oring_y_rad = oring_thick/2 * oring_oblate;
61 oring_x_rad = oring_thick/2 / oring_oblate;
63 by_oring_z = oring_y_rad * (1 + cos(oring_upper_embed_angle));
65 side_height = rivet_posn + bayo_behind + rivet_thick/2;
66 side_thick = rivet_tall + over_rivet_wall;
68 top_z = top_thick_by_oring + oring_y_rad + by_oring_z;
70 middle_bot_z = top_z - top_thick_middle;
72 bayo_entry = bayo_behind / 3.0;
73 bayo_top_z = bayo_behind + rivet_thick + bayo_above_gap;
74 bayo_entry_ramp = bayo_entry + bayo_interf;
76 rivet_entry_width = rivet_width + side_rivet_gap;
78 jig_mark_rad = jig_mark + main_dia/2 + jig_thick;
80 $fs= coarse ? 2.5 : 0.5;
85 bayo_a = [ bayo_entry_x, 0 ];
86 bayo_p = [ 0, bayo_entry_z ];
87 bayo_n = [ 0, bayo_behind-bayo_inramp_z ];
88 bayo_m = [ bayo_inramp_x, bayo_behind ];
89 bayo_l = bayo_m + bayo_interf * [ 1/bayo_interf_slope, 1 ];
90 bayo_k = bayo_l + [ bayo_interf_width, 0 ];
91 bayo_j = bayo_k + bayo_interf * [ 1/bayo_interf_slope, -1 ];
92 bayo_i = bayo_j + [ rivet_width, 0 ];
93 bayo_h = [ bayo_i[0], bayo_behind + rivet_thick
94 + bayo_above_gap + bayo_interf ];
95 bayo_g = [ bayo_m[0] - rivet_width, bayo_h[1] ];
97 bayo_e = [-bayo_p[0], bayo_p[1]] - [rivet_entry_width,0];
98 bayo_d = [-bayo_a[0], bayo_a[1]] - [rivet_entry_width,0];
99 bayo_c = bayo_d + [0,-5];
100 bayo_b = bayo_a + [0,-5];
102 bayo_f = [ bayo_e[0], bayo_g[1] + (bayo_e[0] - bayo_g[0]) ];
104 bayo_polygon = [ bayo_a,
122 module MainProfile(){
123 main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
126 translate(main_cnr_pos){
129 circle(r = main_cnr);
130 circle(r = main_cnr * 0.5);
135 polygon([[ -top_middle_dr, middle_bot_z ],
136 [ -top_middle_dr, top_z ],
137 [ main_cnr_pos[0], top_z ],
138 [ side_thick, main_cnr_pos[1] ],
139 [ side_thick, -side_height ],
140 [ side_taper, -side_height ],
143 [ -oring_x_rad, by_oring_z ],
147 translate([ oring_mid_dia/2 - main_dia/2, 0 ])
149 translate([ 0, oring_y_rad ])
150 scale([ 1/oring_oblate, oring_oblate ])
151 circle(oring_thick/2);
152 translate([ 0, oring_y_rad*2 - oring_thick/2 ])
153 circle(oring_thick/2);
158 module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
159 // nom_rad > real_rad
160 rotate([0,0, atan2(offset, nom_rad) ]){
162 translate([-offset, -10, 0])
164 linear_extrude(height= nom_rad*2)
166 translate([0,0, -25])
167 cylinder(h=50, r= real_rad);
168 translate([0,0, -25])
169 linear_extrude(height= 50)
171 [ -slice_size, -real_rad*2 ],
172 [ +slice_size, -real_rad*2 ] ]);
177 module RotateProject(x_min, x_max, slice_size, nom_rad, real_rad){
178 offs = [ for (i=[ x_min :
180 x_max + slice_size ]) i ];
183 RotateProjectSlice(off, slice_size, nom_rad, real_rad)
187 module BayonetCutout(){
188 RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
189 main_dia/2 + side_thick,
190 main_dia/2 + rivet_tall)
191 polygon(bayo_polygon, convexity=10);
194 module ProfilesDemo(){ ////toplevel
195 translate([-10,0]) MainProfile();
196 translate([+10,0]) polygon(bayo_polygon, convexity=10);
199 module Cover(){ ////toplevel
200 render() difference(){
202 rotate_extrude(convexity=10)
203 translate([main_dia/2, 0])
205 translate([0,0, middle_bot_z])
206 cylinder(h= top_thick_middle, r = main_dia/2 - top_middle_dr + 1);
210 translate([0,0, -side_height])
212 for (r=[0 : 60 : 179]) {
214 height = top_thick_middle - brace_above_below*2;
215 translate([0,0, middle_bot_z + brace_above_below + height/2 ])
216 cube(center=true, [ oring_bore - brace_end_shorter,
217 brace_hole_width, height ]);
224 translate([0,0, -10])
225 cylinder(r= main_dia/2 - jig_rim, h=20);
228 module Jig(){ ////toplevel
231 translate([0,0, -side_height]){
232 cylinder(r= main_dia/2 + jig_thick, h= side_height + jig_thick);
234 translate([-jig_mark_rad, 0, jig_thick - jig_mark])
235 cube([jig_mark_rad*2, jig_mark, jig_mark]);
237 translate([0,0, -side_height-1])
238 cylinder(r= main_dia/2, h= side_height + 1);
240 translate([0,0, -rivet_posn])
242 translate([0,0, -100])
243 cylinder(r= jig_hole_dia/2, h = 200);
247 module CoverTest2(){ ////toplevel
254 module CoverTest1(){ ////toplevel
257 for (r= [ 40, 147 ]){
259 translate([0,0, -10]) {
260 cube([ main_dia*3, main_dia * .55, 18], center=true);