main_cnr = 6.0;
-min_wall = 4;
+min_wall = 3;
-rivet_posn = 6.0;
+rivet_posn = 6.0 + 0.6;
rivet_thick = 1.67;
rivet_width = 4.15 + 1.0;
rivet_tall = 5.51 + 1.49;
over_rivet_wall = 1.0;
side_rivet_gap = 1.5;
+inside_rivet_gap = 1.5;
-bayo_interf = 1.25;
+bayo_interf = 0.85;
bayo_behind = 3.5;
bayo_interf_width = 2.0;
-bayo_interf_slope = 0.75;
+bayo_interf_slope = 0.5;
oring_thick = 5.0;
oring_bore = 62.0;
oring_upper_embed_angle = 80;
-oring_compress = 0.05; // proportion
+oring_compress = 0.1; // proportion
oring_rm_beside = 8;
oring_rm_scale = 2.0;
side_taper = 1.0;
-bayo_above_gap = 1.0;
+bayo_gap = 6.0;
bayo_entry = bayo_behind/3;
jig_rim = 5;
jig_mark = 5;
+strap_hoop_thick = 6;
+strap_hoop_inside = 10;
+strap_hoop_strlen = 10;
+
// calculated
bayo_entry_x = bayo_entry;
middle_bot_z = top_z - top_thick_middle;
bayo_entry = bayo_behind / 3.0;
-bayo_top_z = bayo_behind + rivet_thick + bayo_above_gap;
-bayo_entry_ramp = bayo_entry + bayo_interf;
+bayo_top_z = bayo_behind + bayo_gap;
rivet_entry_width = rivet_width + side_rivet_gap;
jig_mark_rad = jig_mark + main_dia/2 + jig_thick;
handling_dia = oring_bore + oring_thick*2 + min_wall*2;
+handling_angle = 45;
$fs= coarse ? 2.5 : 0.5;
$fa= coarse ? 5 : 1;
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_interf ];
+bayo_i = bayo_j + [ rivet_width + inside_rivet_gap, 0 ];
+bayo_h = [ bayo_i[0], bayo_behind + bayo_gap + bayo_interf ];
bayo_g = [ bayo_m[0] - rivet_width, bayo_h[1] ];
bayo_e = [-bayo_p[0], bayo_p[1]] - [rivet_entry_width,0];
}
}
+module StrapHoopProfile(){
+ circle(r = strap_hoop_thick/2);
+}
+
+module StrapHoop(){ ////toplevel
+ bigrad = strap_hoop_inside + strap_hoop_thick/2;
+ extralen = strap_hoop_thick;
+
+ for (x= [ -1, +1 ] * bigrad) {
+ translate([x, -extralen, 0])
+ rotate([-90,0,0])
+ linear_extrude(height= extralen + strap_hoop_strlen + 0.1,
+ convexity=10)
+ StrapHoopProfile();
+ }
+ translate([0, strap_hoop_strlen, 0]){
+ intersection(){
+ rotate_extrude(convexity=10)
+ translate([bigrad, 0,0])
+ StrapHoopProfile();
+ translate([0,50,0])
+ cube([100,100,100], center=true);
+ }
+ }
+}
+
module HandlingProfile(){
// translate([
}
module ProfilesDemo(){ ////toplevel
translate([-10,0]) MainProfile();
- translate([+10,0]) polygon(bayo_polygon, convexity=10);
+ translate([+10, -side_height]) polygon(bayo_polygon, convexity=10);
}
module LimitForHandling(){ ////toplevel
- for (r=[0,180])
+ hull() for (r=[0,180])
rotate([0,0,r]) {
-
+ for (rs=[-1,+1]) {
+ for (xd=[0,1]) {
+ rotate([0,0, rs * handling_angle/2]) {
+ translate([rs * xd * main_dia/2 * tan(handling_angle/2),
+ main_dia/2 + side_thick - main_cnr,
+ top_z - main_cnr]) {
+ mirror([0,0,1])
+ cylinder(r= main_cnr, h=50);
+ sphere(main_cnr);
+ }
+ }
+ }
+ }
}
hull() rotate_extrude(){
translate([ handling_dia/2 - main_cnr, top_z - main_cnr ]) {
translate([0,0, middle_bot_z])
cylinder(h= top_thick_middle, r = main_dia/2 - top_middle_dr + 1);
}
- %LimitForHandling();
+ LimitForHandling();
}
for (r=[0,180]){
rotate([0,0, r])
}
}
}
+ translate([handling_dia/2, 0, -side_height])
+ rotate([0,0,-90])
+ rotate([-45, 0,0])
+ StrapHoop();
}
module SavingHole(){