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// Test square
//
// Generate STL using OpenSCAD:
// openscad square.scad -o square.stl
square_width = 5;
square_size = 60;
square_height = 5;
module hollow_square() {
difference() {
cube([square_size, square_size, square_height]);
translate([square_width, square_width, -1])
cube([square_size-2*square_width, square_size-2*square_width,
square_height+2]);
}
}
module notch() {
CUT = 0.01;
depth = .5;
width = 1;
translate([-depth, -width, -CUT])
cube([2*depth, 2*width, square_height + 2*CUT]);
}
module square_with_notches() {
difference() {
// Start with initial square
hollow_square();
// Remove four notches on inside perimeter
translate([square_width, square_size/2 - 4, 0])
notch();
translate([square_size/2, square_size - square_width, 0])
rotate([0, 0, 90])
notch();
translate([square_size - square_width, square_size/2, 0])
notch();
translate([square_size/2, square_width, 0])
rotate([0, 0, 90])
notch();
}
}
square_with_notches();
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