rivet_width = 4.15 + 1.0;
rivet_tall = 5.51 + 0.49;
-over_rivet = 0.5;
+over_rivet_wall = 0.5;
+side_rivet_gap = 1.5;
bayo_interf = 0.75;
bayo_behind = 3.5;
+bayo_interf_width = 2.0;
+bayo_interf_slope = 0.75;
seal_thick = 0.1;
seal_recess = [ 2.0, 2.0 ]; // recess depth, recess height
side_taper = 1.0;
+bayo_above_gap = 1.0;
+
+bayo_entry = bayo_behind/3;
+
+bayo_slice_size = 1;
+
// calculated
-side_height = rivet_posn + bayo_behind;
-side_thick = rivet_tall + over_rivet;
+bayo_entry_x = bayo_entry;
+bayo_entry_z = bayo_entry;
+bayo_inramp_x = bayo_entry;
+bayo_inramp_z = bayo_entry;
+
+side_height = rivet_posn + bayo_behind + rivet_thick/2;
+side_thick = rivet_tall + over_rivet_wall;
top_z = top_thick + seal_thick;
+bayo_entry = bayo_behind / 3.0;
+bayo_top_z = bayo_behind + rivet_thick + bayo_above_gap;
+bayo_entry_ramp = bayo_entry + bayo_interf;
+
+rivet_entry_width = rivet_width + side_rivet_gap;
+
$fs=0.5;
-$fa=5;
+$fa=1;
+
+// bayonet definition
+
+bayo_a = [ bayo_entry_x, 0 ];
+bayo_p = [ 0, bayo_entry_z ];
+bayo_n = [ 0, bayo_behind-bayo_inramp_z ];
+bayo_m = [ bayo_inramp_x, bayo_behind ];
+bayo_l = bayo_m + bayo_interf * [ 1/bayo_interf_slope, 1 ];
+bayo_k = bayo_l + [ bayo_interf_width, 0 ];
+bayo_j = bayo_k + bayo_interf * [ 1/bayo_interf_slope, -1 ];
+bayo_i = bayo_j + [ rivet_width, 0 ];
+bayo_h = [ bayo_i[0], bayo_behind + rivet_thick + bayo_above_gap ];
+bayo_g = [ bayo_m[0] - rivet_width, bayo_h[1] ];
+
+bayo_e = [-bayo_p[0], bayo_p[1]] - [rivet_entry_width,0];
+bayo_d = [-bayo_a[0], bayo_a[1]] - [rivet_entry_width,0];
+bayo_c = bayo_d + [0,-5];
+bayo_b = bayo_a + [0,-5];
+
+bayo_f = [ bayo_e[0], bayo_g[1] + (bayo_e[0] - bayo_g[0]) ];
+
+bayo_polygon = [ bayo_a,
+ bayo_b,
+ bayo_c,
+ bayo_d,
+ bayo_e,
+ bayo_f,
+ bayo_g,
+ bayo_h,
+ bayo_i,
+ bayo_j,
+ bayo_k,
+ bayo_l,
+ bayo_m,
+ bayo_n,
+ bayo_p ];
+
+echo(bayo_polygon);
module MainProfile(){
main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
]);
}
-MainProfile();
+module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
+ // nom_rad > real_rad
+ rotate([0,0, atan2(offset, nom_rad) ]){
+ intersection(){
+ translate([-offset, -10, 0])
+ rotate([90,0,0])
+ linear_extrude(height= nom_rad*2)
+ polygon(bayo_polygon);
+ translate([0,0, -25])
+ cylinder(h=50, r= real_rad);
+ translate([0,0, -25])
+ linear_extrude(height= 50)
+ polygon([ [ 0,0 ],
+ [ -slice_size, -real_rad*2 ],
+ [ +slice_size, -real_rad*2 ] ]);
+ }
+ }
+}
+
+module RotateProject(x_min, x_max, slice_size, nom_rad, real_rad){
+ offs = [ for (i=[ x_min :
+ slice_size :
+ x_max + slice_size ]) i ];
+ echo (offs);
+ for (off=offs)
+ RotateProjectSlice(off, slice_size, nom_rad, real_rad);
+}
+
+module BayonetCutout(){
+ RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
+ main_dia/2 + side_thick,
+ main_dia/2 + rivet_tall);
+}
+
+module ProfilesDemo(){
+ translate([-20,0]) MainProfile();
+ polygon(bayo_polygon);
+}
+
+//ProfilesDemo();
+BayonetCutout();