Original-Prusa-i3/Printed-Parts/scad/extruder-cover.scad

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

//import("extruder_body.stl");
//translate([11.5, -0.5, -37.5]) cylinder(h = 30, r = 3.0, $fn = 50);

module m3head()
{
    intersection()
    {
        translate([30, 5, 9]) cylinder(r = 3.1, h = 25, $fn = 30); // head cut
        translate([30, 5, 17 - 3.5]) cube([6.2, 3.4, 1], center = true);
    }
    translate([30, 5, 17 - 4]) cube([3.4, 3.4, 1], center = true);
    translate([30, 5, 17 - 3.5]) cylinder(r = 3.1, h = 20, $fn = 30); // head cut
}

module grill()
{
    difference()
    {
        translate([24, -5, -20]) cylinder(h = 23, r = 20.4, $fn = 50);
        translate([24, -5, -21]) cylinder(h = 26, r = 19, $fn = 50);
        translate([23, -30, -30]) cube([30, 60, 35]);
        translate([-11, -30, -30]) cube([30, 60, 35]);
        translate([-19, -20, -30]) cube([60, 60, 35]);
    }
    translate([23, -24.65, -20]) cylinder(h = 23, r = 0.72, $fn = 50);
    translate([19, -24.01, -20]) cylinder(h = 23, r = 0.72, $fn = 50);
}

translate([-35.25, 10, -20]) grill();
translate([-35.25, 0, -20]) grill();

// horizontal fins
translate([-16.5, -35, -25]) cube([4, 31, 1]);
translate([-16.5, -6, -24.5]) rotate([90, 0, 0]) cylinder(h = 30, r = 0.5, $fn = 50);
translate([-12.5, -6, -24.5]) rotate([90, 0, 0]) cylinder(h = 30, r = 0.5, $fn = 50);

module extruder_cover()
{
    difference()
    {
        union()
        {
            // base block
            translate([-17, -36.5, -40.0]) cube([41.5, 42.25, 23.0]);
            translate([-37.75, -38.5, -40]) rotate([0, 0, 0]) cylinder(h = 5, r = 5.9, $fn = 6);
            translate([-34, -41.5, -40]) rotate([0, 0, 20]) cube([30, 8, 4]);
            translate([16, -38.5, -40]) rotate([0, 0, 45]) cube([3, 3, 23]);

            // fan nozzle mount
            translate([11.5, -44, -40]) cube([7, 9, 7]);
            translate([15.5, -44, -40]) cube([5, 9, 23]);
            translate([-15, -44, -40]) cube([6.2, 17, 6]);
            translate([-11, -44, -40]) cube([28, 20, 1]);

            // cable guide above fan
            translate([23.5, -1.5, -40]) cube([8, 7.25, 23]);
        }

        // side fan cut
        translate([20.5, -37.5, -41]) cube([20, 36, 30]);

        // cables hook
        translate([34, -1.0, -41]) rotate([0, 0, 45]) cube([10, 10, 25]);
        difference()
        {
            translate([20.5, -2.5, -41]) cube([4, 5, 25]);
            translate([20.0, -0.5, -41]) rotate([0, 0, 60]) cube([5, 5, 25]);
        }

        // e3d nozzle cut
        translate([0, -9, -17]) rotate([90, 0, 0]) cylinder(h = 30, r = 11.1, $fn = 50);
        translate([0, -9, -17]) rotate([90, 0, 0]) cylinder(h = 26, r = 11.5, $fn = 50);
        translate([0, -3.4, -17]) rotate([90, 0, 0]) cylinder(h = 10, r = 8.05, $fn = 50);
        translate([0, 8, -17]) rotate([90, 0, 0]) cylinder(h = 5.6, r = 8.05, $fn = 50);
        translate([0, 4, -17]) rotate([90, 0, 0]) cylinder(h = 8, r = 6.05, $fn = 50);

        // hotend cooling tube
        // input
        translate([12, -21.5, -20]) rotate([0, 90, 0]) cylinder(h = 10, r2 = 20.5, r1 = 12, $fn = 80);
        translate([1, -20.5, -15.5]) rotate([0, 99, 0]) cylinder(h = 25, r2 = 17.5, r1 = 12, $fn = 80);
        translate([-10, -35, -28.3]) cube([30, 26, 32]);

        // output
        difference()
        {
            translate([-17.2, -35, -36]) rotate([0, -23, 0]) cube([44, 26, 32]);
            translate([-18, -53.5, -40]) rotate([0, 0, 65]) cube([20, 20, 32]);
        }

        // fan screws
        translate([7, -37.5, -36]) rotate([0, 90, 0]) cylinder(h = 14, r = 1.4, $fn = 30);
        translate([7, -5.5, -36]) rotate([0, 90, 0]) cylinder(h = 14, r = 1.4, $fn = 30);
        translate([19, -37.5, -36]) rotate([0, 90, 0]) cylinder(h = 2, r1 = 1.4, r2 = 2, $fn = 30);
        translate([19, -5.5, -36]) rotate([0, 90, 0]) cylinder(h = 2, r1 = 1.4, r2 = 2, $fn = 30);

        // left hold together screw
        translate([17, 3, -44]) rotate([0, 0, 0]) cylinder(h = 40, r = 1.6, $fn = 60);
        translate([17, 3, -41]) rotate([0, 0, 0]) cylinder(h = 8, r = 3.1, $fn = 30);
        translate([13.9, 3.1, -41]) cube([6.2, 10, 9]);

        // right hold together screw
        translate([-11.5, -0.5, -43]) cylinder(h = 60, r = 1.65, $fn = 50);
        translate([-11.5, -0.5, -41]) cylinder(h = 5, r = 3.1, $fn = 30);

        // upper cooling fan screw
        translate([5.5, -0.5, -40]) cylinder(h = 15, r = 1.65, $fn = 50);
        translate([5.5, -0.5, -42]) cylinder(h = 3, r1 = 3, r2 = 1.65, $fn = 50);

        // nuts
        translate([2.8, -4, -39]) cube([5.6, 15, 2.1]);
        translate([2.8, -2.2, -39]) cube([5.6, 3.4, 2.5]);
        translate([3.8, -2.2, -39]) cube([3.4, 3.4, 2.9]);
        translate([2.8, 5.4, -38.4]) rotate([45, 0, 0]) cube([5.6, 10, 2]);

        // lower cooling fan screw
        translate([-37.75, -38.5, -42]) cylinder(h = 20, r = 1.6, $fn = 30);
        translate([-37.75, -38.5, -39.4]) cylinder(h = 4, r = 3.1, $fn = 6);
        translate([-37.75, -38.5, -37.5]) cylinder(h = 3, r1 = 3.1, r2 = 4.0, $fn = 6);

        // nozzle screw
        translate([14.5, -40.5, -42]) cylinder(h = 10, r = 1.4, $fn = 30);
        translate([14.5, -40.5, -41]) cylinder(h = 3, r1 = 2.1, r2 = 1.4, $fn = 30);

        // fan and motor cables
        translate([21.5, -5.9, -41]) cube([3, 5, 25]);
        translate([20.5, -5.9, -41]) cube([4, 5, 25]);
        translate([13.2, -49.5, -33]) rotate([0, 0, 20]) cube([6, 10, 25]);

        translate([18.5, -5.5, -22]) rotate([0, 180, 0]) m3head();
        translate([47, -2, -19]) rotate([0, 180, 0]) m3head();

        //version
        translate([-3, -36, -38]) rotate([90, 0, 0]) linear_extrude(height = 0.6)
        { text("R2", font = "helvetica:style = Bold", size = 4, center = true); }

        translate([11.5, -0.5, -21]) cylinder(h = 5, r = 2.0, $fn = 50);
    }
}

extruder_cover();