use <MCAD/involute_gears.scad>

// Wheel radius (approximated)
r = 20;
// Wheel tickness
thickness = 2;
// Hub tickness
max_thickness = 3;
// Axle radius
axle_r = 3;

teeth = r*1.15;

$fn=30;

intersection() {
    cylinder(r1=r*1.1, r2=r/2, h=max_thickness);
    gear (
        number_of_teeth=teeth,
        circular_pitch=300, 
        diametral_pitch=false,
        pressure_angle=38,
        clearance = 0.2,
        gear_thickness=thickness,
        rim_thickness=thickness,
        rim_width=5,
        hub_thickness=max_thickness,
        hub_diameter=axle_r*3,
        bore_diameter=axle_r*2,
        circles=0,
        backlash=0,
        twist=0,
        involute_facets=0,
        flat=false
    );
}