from solid import cube, scad_render

def create_cad_model(size):
    try:
        model = cube(size)
        with open("output.scad", "w") as f:
            f.write(scad_render(model))
        return "CAD model created successfully: output.scad"
    except Exception as e:
        return f"Error in CAD generation: {str(e)}"