patbox_centres = 60.3;
lid_thinboxbase_overlap = 5;
-lid_fatbox_overlap = 5;
+lid_fatbox_overlap = 12;
lid_thinbox_h = 9;
lid_fatbox_h = 24;
lid_front_wall = 1.5;
lid_side_wall = 1.5;
+peg_engage_depth = 1;
+peg_engage_dia = 6.0;
+peg_main_dia = 9;
+peg_max_dia = 15;
+peg_inner_dia = 3.5;
+peg_top_thick = 1;
+peg_straight_len = 3;
+
+peg_inner_slop = 0.2;
+peg_outer_slop = 0.1;
+
+peg_slope = 1;
+
lid_side_slop = 0.5;
// computed
echo(lid_rail_w);
+peg_main_height = peg_straight_len + (peg_max_dia - peg_main_dia)/2/peg_slope;
+
+echo(peg_main_height);
+
module LidSideProfile(){
polygon([[-lid_top_wall, lid_inner_max_h],
[lid_inner_kink[0], lid_inner_max_h],
module LidSide(){
overlap = [0.1, 0.1, 0.1];
+ // main side profile
rotate([90,0,0])
linear_extrude(height= lid_side_wall)
LidSideProfile();
+ // rail
translate(-overlap)
cube(overlap + [total_len, lid_rail_w, lid_rail_h]);
+ // lid front
translate([-0.1, -0.1, -lid_front_wall])
cube([total_len+0.1, lid_inner_w/2 + 0.2, lid_front_wall]);
+
+ // lid top
+ translate([-lid_top_wall, -lid_side_wall, -lid_front_wall])
+ cube([lid_top_wall, lid_inner_w/2 + 10, lid_front_wall + lid_inner_max_h]);
+}
+
+module PegProfile(){
+ polygon([[-peg_engage_depth, (peg_engage_dia - peg_outer_slop)/2],
+ [0, (peg_engage_dia - peg_outer_slop)/2],
+ [0, (peg_main_dia - peg_outer_slop)/2],
+ [peg_straight_len, (peg_main_dia - peg_outer_slop)/2],
+ [peg_main_height, (peg_max_dia - peg_outer_slop)/2],
+ [peg_main_height+peg_top_thick, (peg_max_dia - peg_outer_slop)/2],
+ [peg_main_height+peg_top_thick, (peg_inner_dia + peg_inner_slop)/2],
+ [-peg_engage_depth, (peg_inner_dia + peg_inner_slop)/2]]);
+}
+
+module Peg(){
+ rotate_extrude($fn=50)
+ rotate([0,0,-90])
+ PegProfile();
}
-LidSide();
+//LidSide();
+//PegProfile();
+Peg();