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//-- Flat piece with an embedded nut
//-- Just for testing pourposes
//-- (c) 2015 jank3
//-- GPL License

//-- Parameters

//-- Piece
thickness = 5;
long = 120;
wide = 15;

//-- Nut
nut_h = 3.4;
nut_radius = 8.4/2;
nut_drill = 3.1;

module embeded_nut() {
//-- Create the piece
difference() {
translate([-50,0,-thickness/2])
cube([long,wide,thickness],center=true);
translate([0,0,-thickness/2])
cylinder(center=true,h=20, r=nut_drill/2, $fn=50);
translate([0,0,-nut_h])
rotate([0,0,90])
cylinder(h=10, r=nut_radius, $fn=6);
}
}

translate([long/6,long/6,0])
rotate([0,0,0])
union() {
embeded_nut();

translate([-long/2-thickness+0.01,0,long/2-thickness])
rotate([0,-90,0])
embeded_nut();
}

translate([long/6-20,long/6,5])
translate([-50,0,-thickness/2])
cube([long,wide,thickness],center=true);

translate([long/6,long/6,5])
translate([-50,0,-thickness/2])
cube([10,wide,thickness],center=