include <constants.scad>;
include <parts.scad>;

module bearing_slot() {
    intersection() {
        difference() {
            translate([- frame_size / 2, - frame_size / 2, 1])
                cube([frame_size, frame_size, 10]);
            cylinder(d = bushing_od, h = 6);
            cylinder(d = rail_diam, h = 12);
        }
        union() {
            cylinder(h = 12, d = frame_size);
            translate([-frame_size/2, 0, 0])
            cube([frame_size, frame_size, frame_size]);
        }
    }
}

let($fn = 30) {
    translate([-28, 0, frame_size/2])
    rotate([0,90,0]) bearing_slot();

    translate([28, 0, frame_size/2])
        rotate([0,-90,0]) bearing_slot();

    idler_post(10);
}