display_holder.scad

$fn = 100;

actual_bar_diamater = 22;
bar_diameter = actual_bar_diamater - 1;
holder_thickness = 5;
holder_outer_diameter = bar_diameter + holder_thickness;
holder_width = 25;

display_hole_diameter = 10;
tension_hole_diamater = 10;

cutout_height = 50;

union() {
    holder();
    display_plate();
}


module holder() {
    module tension_bracket() {
        difference() {
            translate([(holder_outer_diameter / 2) + holder_thickness, 0, 0])
                cube([bar_diameter / 1.5, bar_diameter / 4, holder_width], center=true);
        }
    }

    module tension_hole() {
        translate([holder_outer_diameter / 1.5, 0,0])
            rotate([90, 0, 0])
            cylinder(h=cutout_height, d=tension_hole_diamater, center=true);
    }

    module ring() {
        difference() {
            difference() {
                hull() {
                    cylinder(h=holder_width, d=holder_outer_diameter, center=true);
                    tension_bracket();
                }
                translate([holder_outer_diameter / 2, 0, 0])
                    cube([holder_outer_diameter, 5, cutout_height], center=true);
            }
            cylinder(h=holder_width+2, d=bar_diameter, center=true);
            tension_hole();
        }
    }

    ring();
}

module display_plate() {
    module mount_hole() {
        translate([-holder_width * 1.2, 0, 0])
            rotate([90, 0, 0])
            cylinder(h=cutout_height, d=display_hole_diameter, center=true);
    }
    difference() {
        translate([-holder_outer_diameter / 1.5, -holder_outer_diameter / 2, 0])
            cube([holder_width * 2, holder_thickness, holder_width], center=true);
        mount_hole();
    }
}