using Delta to make neater differences in OpenSCAD

Wire_Clamp.scad

thickness = 2.4;
width = 10;
wire_size = 6;
bracket_width = 8;
hole_size = 2.5;

//
Delta = 0.1;

difference(){
	cube([(bracket_width*2)+(wire_size*2)+(thickness*2), width, wire_size+thickness], center = true);
	
	translate([wire_size+thickness+0.5*(bracket_width), 0, thickness])
	cube([bracket_width+Delta, width+Delta, wire_size+thickness], center = true);
	
	translate([-wire_size-thickness-0.5*(bracket_width), 0,thickness])
	cube([bracket_width+Delta, width+Delta, wire_size+thickness], center = true);
	
	translate([0, 0, -0.5*thickness-Delta])
	cube([wire_size*2+Delta, width+Delta, wire_size], center = true);
	
	// translate([wire_size+thickness+0.5*bracket_width, 0, -0.5*wire_size-0.5*thickness])
	// cylinder(r = hole_size/2, h = thickness, $fn = 11.25);
	for (side=[-1:2:1]) // -1,1
		translate([(-wire_size-thickness-0.5*bracket_width)*side, 0, -0.5*wire_size-0.5*thickness-Delta])
		cylinder(r = hole_size/2, h = thickness+Delta*2, $fn = 11.25);
}