6 lid_thinboxbase_overlap = 5;
7 lid_fatbox_overlap = 12;
11 lid_fatbox_switches_h = 6+2;
13 lid_max_switches_w = 70;
14 lid_switches_y_slop = 3;
37 lid_rail_behindslop = 0.5;
42 lid_thinboxbase_overlap + lid_fatbox_h + lid_fatbox_switches_h;
43 lid_inner_min_h = lid_fatbox_overlap + lid_fatbox_switches_h;
45 lid_inner_kink = [thinbox_len, thinbox_len*2];
47 lid_inner_w = patbox_side + lid_side_slop * 2;
49 lid_seatline_w = (lid_inner_w - lid_max_switches_w)/2 - lid_switches_y_slop;
51 lid_seatline_h = lid_fatbox_switches_h;
55 peg_main_height = peg_straight_len + (peg_max_dia - peg_main_dia)/2/peg_slope;
57 echo(peg_main_height);
59 module LidSideProfile(){
60 polygon([[-lid_top_wall, lid_inner_max_h],
61 [lid_inner_kink[0], lid_inner_max_h],
62 [lid_inner_kink[1], lid_inner_min_h],
63 [total_len, lid_inner_min_h],
64 [total_len, -lid_front_wall],
65 [-lid_top_wall, -lid_front_wall]]);
69 yt_base = lid_seatline_h + lid_fatbox_h - lid_thinbox_h;
70 yt = yt_base - lid_rail_behindslop;
71 pegx = (lid_inner_w - patbox_centres)/2;
74 [pegx - peg_main_dia/2, yt],
75 [pegx - peg_main_dia/2, yt_base - peg_straight_len],
77 yt_base - peg_straight_len - (pegx - peg_main_dia/2)/peg_slope
82 overlap = [0.1, 0.1, 0.1];
86 linear_extrude(height= lid_side_wall)
91 cube(overlap + [total_len, lid_seatline_w, lid_seatline_h]);
94 translate([-0.1, -0.1, -lid_front_wall])
95 cube([total_len+0.1, lid_inner_w/2 + 0.2, lid_front_wall]);
98 translate([-lid_top_wall, -lid_side_wall, -lid_front_wall])
99 cube([lid_top_wall, lid_inner_w/2 + 10, lid_front_wall + lid_inner_max_h]);
103 translate([0,0,-0.1])
104 linear_extrude(height=100.1) //todo
109 polygon([[-peg_engage_depth, (peg_engage_dia - peg_outer_slop)/2],
110 [0, (peg_engage_dia - peg_outer_slop)/2],
111 [0, (peg_main_dia - peg_outer_slop)/2],
112 [peg_straight_len, (peg_main_dia - peg_outer_slop)/2],
113 [peg_main_height, (peg_max_dia - peg_outer_slop)/2],
114 [peg_main_height+peg_top_thick, (peg_max_dia - peg_outer_slop)/2],
115 [peg_main_height+peg_top_thick, (peg_inner_dia + peg_inner_slop)/2],
116 [-peg_engage_depth, (peg_inner_dia + peg_inner_slop)/2]]);
120 rotate_extrude($fn=50)
125 module AtFixingCentres(){
127 translate([patbox_side/2 + fc*patbox_centres/2,
134 module TopPattressBox(){
136 translate([0,0, -lid_thinbox_h])
137 cube([patbox_side, patbox_side, lid_thinbox_h]);
139 translate([0,0,-10]) cylinder(r=peg_engage_dia/2, h=20);
145 translate([0, -lid_inner_w/2, 0]) LidSide();
146 translate([0,0, lid_fatbox_h])
147 rotate([0,180,0]) translate([0, -patbox_side/2, 0])
148 rotate([0,0,90]) union(){
150 color("blue") AtFixingCentres(){
151 rotate([180,0,0]) Peg();