total_len = 260;
thinbox_len = 87;
+rail_overlap = 8;
+
lid_top_wall = 1.5;
lid_front_wall = 1.5;
lid_side_wall = 1.5;
lid_side_slop = 0.5;
lid_rail_behindslop = 0.5;
+lid_rail_strongwall = 2.5;
// computed
lid_inner_kink = [thinbox_len, thinbox_len*2];
-lid_inner_w = patbox_side + lid_side_slop * 2;
+lid_inner_w_nom = patbox_side;
+lid_inner_w = lid_inner_w_nom + lid_side_slop * 2;
lid_seatline_w = (lid_inner_w - lid_max_switches_w)/2 - lid_switches_y_slop;
echo(peg_main_height);
+thinbox_front_z = lid_fatbox_switches_h + lid_fatbox_h - lid_thinbox_h;
+
+raillen = patbox_side/2 + rail_overlap;
+
module LidSideProfile(){
polygon([[-lid_top_wall, lid_inner_max_h],
[lid_inner_kink[0], lid_inner_max_h],
[-lid_top_wall, -lid_front_wall]]);
}
-module RailProfile(){
- yt_base = lid_seatline_h + lid_fatbox_h - lid_thinbox_h;
+module RailProfile(lslop=0.1){
+ yt_base = thinbox_front_z;
yt = yt_base - lid_rail_behindslop;
- pegx = (lid_inner_w - patbox_centres)/2;
+ pegx = (lid_inner_w_nom - patbox_centres)/2;
+ sw = lid_rail_strongwall;
- polygon([[-0.1, yt],
+ polygon([[-lslop, yt],
[pegx - peg_main_dia/2, yt],
[pegx - peg_main_dia/2, yt_base - peg_straight_len],
- [-0.1,
+ [sw,
yt_base - peg_straight_len - (pegx - peg_main_dia/2)/peg_slope
- -0.1]]);
+ +sw],
+ [sw,
+ lid_seatline_h - 1],
+ [-lslop,
+ lid_seatline_h - 1]]);
}
module LidSide(){
// rail
rotate([90,0,90])
translate([0,0,-0.1])
- linear_extrude(height=100.1) //todo
+ linear_extrude(height=raillen+0.1) //todo
RailProfile();
+
+ // rail end
+ translate([raillen, 0,0])
+ intersection(){
+ rotate_extrude($fn=50)
+ RailProfile(lslop=0);
+ translate([0, 25-0.1, 0])
+ cube(50, center=true);
+ }
+}
+
+module Lid(){ ////toplevel
+ for (m=[0,1])
+ mirror([0,m,0])
+ translate([0, -lid_inner_w/2, 0]) LidSide();
}
module PegProfile(){
[-peg_engage_depth, (peg_inner_dia + peg_inner_slop)/2]]);
}
-module Peg(){
+module Peg(){ ////toplevel
rotate_extrude($fn=50)
rotate([0,0,-90])
PegProfile();
}
module Demo(){
- translate([0, -lid_inner_w/2, 0]) LidSide();
- translate([0,0, lid_fatbox_h])
+ Lid();
+ translate([0,0, thinbox_front_z])
rotate([0,180,0]) translate([0, -patbox_side/2, 0])
rotate([0,0,90]) union(){
%TopPattressBox();
//Peg();
//TopPattressBox();
//RailProfile();
-Demo();
+//Demo();
+//Lid();