// 92x59 hole mm
// 10mm border
// 4" under table maybe? 100mm ish, w/ 4 screw holes
// maybe like 25mm thick?

hole_w = 92;
hole_l = 59;
trim_w = 10;
undertable_l = 100;
depth = 30;

width = hole_w + 2 * trim_w;
length = undertable_l + trim_w * 2 + hole_l;

screw_inset = 20;
// #8 2" screw
screw_hole_diameter = 3.45;
#difference() {
  cube([width, length, depth]);
  translate([trim_w, trim_w, 0]) {
    cube([hole_w, hole_l, depth]);  
  };
  

  translate([width-screw_inset,length-screw_inset,0]) {
  cylinder(depth*2, d = screw_hole_diameter, center=true, $fn=100);  
  };
  translate([screw_inset,length-screw_inset,0]) {
  cylinder(depth*2, d = screw_hole_diameter, center=true, $fn=100);  
  };
  translate([width-screw_inset,2*trim_w+hole_l+screw_inset,0]) {
  cylinder(depth*2, d = screw_hole_diameter, center=true, $fn=100);  
  };
  translate([screw_inset,2*trim_w+hole_l+screw_inset,0]) {
  cylinder(depth*2, d = screw_hole_diameter, center=true, $fn=100);  
  };
};