22 hstrengdepth = strapwidth;
25 rcutoutside = 7+2 - 0.5;
26 lcutoutside = 7-6.5 - 0.5;
32 tongue2x = tongue2width - holedist;
34 module Tongue(tw,tt,ad,slots=2){
36 yn=ad-ridgewidth-strapwidth;
39 translate([-tw, 0, 0])
40 cube([tw, ad, tt+strapthick]);
44 translate([-tw-1, y0 + (yn-y0)*yi/(slots-1), tt])
45 cube([tw+2, strapwidth, strapthick+0.05]);
50 translate([-holedist-tabsider, 0, 0]) {
51 cube([tabsidel+tabsider+holedist, thick, tabunder+tabover]);
52 cube([tabsidel+tabsider+holedist, thick+hstrengdepth, hstrengthick]);
54 Tongue(tonguewidth,tonguethick,totaldepth,3);
55 translate([tongue2x,0,0])
56 Tongue(tongue2width,tongue2thick,tongue2depth+thick,5) {
58 translate([-(tongue2width-t2strengwidth)/2, 0,0])
60 cube([t2strengwidth,50,20]);
68 translate([0,-25,tabunder+cutoutover]) {
69 translate([-(holedist+rcutoutside), 0,0])
72 translate([lcutoutside, 0,0])
76 translate([x, 0, tabunder]) {
77 translate([0, -1, 0]) {
79 cylinder(r= holedia/2+0.5, h=thick+2, $fn=20);
82 translate([0, 19.95 + thick, 0])
83 cube(center=true,[10,40,10]);