To illustrate how you can use constraints in CAD software to ensure accurate models, let's consider some examples of industrial design projects that involve constraints. For instance, a bicycle frame can be designed with geometric constraints to define the shape and position of the frame tubes, joints, and components. Dimensional constraints can then be used to specify the size and distance of the frame elements, such as the wheelbase, the head tube angle, the seat tube length, and the chainstay length. Additionally, parameters and equations can be linked to the bicycle geometry and performance factors such as steering, stability, and comfort. Similarly, a coffee maker can be designed with geometric constraints to define its shape and position of parts like the water tank, filter, carafe, and handle. Dimensional constraints can then be used to specify its size and distance elements such as its height, width, depth, and capacity. Parameters and equations can be linked to its functionality and efficiency factors such as water flow, temperature, and brewing time. Finally, a chair can be designed with geometric constraints to define its shape and position of components like legs, seat, backrest, and armrests. Dimensional constraints can then be used to specify its size and distance elements like height, width, depth, and angle. Parameters and equations can also be linked to its ergonomics and aesthetics factors such as comfort, support, and style.