// PRUSA iteration4
// Filament sensor cover
// GNU GPL v3
// Josef Průša <iam@josefprusa.cz> and contributors
// http://www.reprap.org/wiki/Prusa_Mendel
// http://prusamendel.org

module part()
{
    difference()
    {
        union()
        {
            // base shape
            translate([-6, 50, -30.5]) cube([24, 3, 36]);
            translate([0, 60, -17]) rotate([90, 0, 0]) cylinder(r = 4.2, h = 10, $fn = 30);
            translate([0, 61.5, -17]) rotate([90, 0, 0]) cylinder(r1 = 3, r2 = 4.2, h = 1.5, $fn = 30);
        }

        // mounting screws
        translate([12, 60, -12]) rotate([90, 0, 0]) cylinder(r = 1.6, h = 20, $fn = 30);
        translate([-1, 60, -24.5]) rotate([90, 0, 0]) cylinder(r = 1.6, h = 20, $fn = 30);
        translate([12, 54.5, -12]) rotate([90, 0, 0]) cylinder(r = 3.1, h = 3, $fn = 30);
        translate([-1, 54.5, -24.5]) rotate([90, 0, 0]) cylinder(r = 3.1, h = 3, $fn = 30);

        // filament guide
        translate([0, 59.8, -17]) rotate([90, 0, 0]) cylinder(r = 2.2, h = 9.8, $fn = 30);
        translate([0, 61, -17]) rotate([90, 0, 0]) cylinder(r = 1, h = 20, $fn = 30);
        translate([0, 62.5, -17]) rotate([90, 0, 0]) cylinder(r2 = 1.2, r1 = 3, h = 3, $fn = 30);
        translate([0, 53.9, -17]) rotate([90, 0, 0]) cylinder(r1 = 2.2, r2 = 3, h = 4, $fn = 30);

        // nice edges
        translate([19, 50, -40]) rotate([0, 0, 45]) cube([10, 10, 50]);
        translate([-9, 49, -38]) rotate([0, 0, 45]) cube([6, 5, 50]);
        translate([-8, 56.5, -39]) rotate([45, 0, 0]) cube([50, 10, 10]);
        translate([-8, 56.5, -1]) rotate([45, 0, 0]) cube([50, 10, 10]);

        translate([7, 50.4, 0]) rotate([90, 180, 0]) linear_extrude(height = 0.6)
        { text("R1", font = "helvetica:style = Bold", size = 5, center = true); }
    }
}

rotate([90, 0, 0]) part();