include <../../config.scad>;
use <../common/beam_hollow_rectangular.scad>;

module skeleton_beam(length, suppress_shopping_outputs = false) {
    d_hole_centre = 5.5;
    w_slot_min = 6;
    color("silver") // , 0.4)
        difference() {
            cube([D_BEAM_SKELETON, D_BEAM_SKELETON, length], center = true);
            cylinder(length, d_hole_centre / 2, d_hole_centre / 2, center = true);
            for (index_side_beam = [0 : 1 : 3]) {
                rotate([0, 0, 90 * index_side_beam]) {
                    union() {
                        /*
                        translate([-t / 2 + D_BEAM_SKELETON / 2, 0, 0]) cube([t, w_slot_min, length], center = true);
                        translate([-t / 2 + D_BEAM_SKELETON / 2, 0, 0]) cube([t, w_slot_min, length], center = true);
                        */
                    }
                    for (index_side_slot = [0 : 1 : 1]) {
                        mirror([0, index_side_slot, 0]) linear_extrude(length, center = true) polygon([
                            [D_BEAM_SKELETON / 2 - T_BEAM_SKELETON - DEPTH_SLOT_BEAM_SKELETON, 0]
                            , [D_BEAM_SKELETON / 2 - T_BEAM_SKELETON - DEPTH_SLOT_BEAM_SKELETON, w_slot_min / 2]
                            , [D_BEAM_SKELETON / 2 - T_BEAM_SKELETON, w_slot_min / 2 + DEPTH_SLOT_BEAM_SKELETON]
                            , [D_BEAM_SKELETON / 2 - T_BEAM_SKELETON, w_slot_min / 2]
                            , [D_BEAM_SKELETON / 2, w_slot_min / 2]
                            , [D_BEAM_SKELETON / 2, 0]
                        ]);
                    }
                }
            }
        }
        // cube([D_BEAM_SKELETON, D_BEAM_SKELETON, length], center = true);
        // beam_hollow_rectangular(length, D_BEAM_SKELETON, D_BEAM_SKELETON, T_BEAM_SKELETON, true);

    // Shopping
    if (!suppress_shopping_outputs) {
        echo(str("Skeleton beam: Aluminium box section 20mm x 20mm x ", length, "mm - x1"));
    }
}

$fn = 100;
// outputs
// skeleton_beam(500, false);
// skeleton_beam(R_INTERNAL[0], false); // X
skeleton_beam(R_EXTERNAL[1], false); // Y
// skeleton_beam(R_INTERNAL[2], false); // Z
// skeleton_beam(L_LEG, false); // chamber leg
// skeleton_beam(L_LEG - D_BEAM_SKELETON, false); // base support leg
// skeleton_beam(R_EXTERNAL[1], false); // base support