One of the most interesting concepts our group explored was building a go-kart using a hand truck as the main frame. At first, this idea seemed very appealing because a hand truck is already designed to carry heavy loads and withstand a lot of force. It is made from thick metal tubing, has a built-in axle area, and is naturally shaped to support weight, which made it seem like a strong and durable foundation for a go-kart. Using something that is already engineered for strength could have made our final vehicle much safer and more resistant to damage during testing and use. The hand truck frame also offered a compact structure that could support a seat, a motor, and wheels without bending or breaking under pressure. However, once we started thinking about how we would actually build on top of the hand truck, we realized that this concept had major limitations. The biggest problem was that the frame is made entirely of metal, and our group does not have access to welding or metal-cutting machinery. Without welding equipment, it would be extremely difficult to attach new parts like motor mounts, steering brackets, or a seat frame securely. Drilling into thick steel is also slow, difficult, and can weaken the structure if done incorrectly. This made the hand truck idea far less practical than it seemed at first. Another challenge was the shape of the hand truck itself. While it is strong, it is designed for vertical loads, not for supporting a driver sitting low to the ground or for steering and turning at speed. Modifying its geometry to make it safe and stable as a go-kart would require significant metal work, which again we were not equipped to do. Even though the hand truck is extremely strong, that strength actually became a drawback because it made the frame hard to modify and customize. In the end, we decided that although the hand truck concept was creative and structurally powerful, it was not the best choice for our project. The lack of proper metalworking tools made it too risky and inefficient to build, so we moved toward materials like wood that allowed us to design, adjust, and assemble our go-kart more safely and realistically.

Building a go-kart out of wood was one of the main ideas our group seriously considered during the early design phase. Wood is easy to find, relatively inexpensive, and much simpler to cut and shape than metal, which made it seem like a practical material for a student project. We liked the idea that we could use hand tools, drills, and screws to quickly assemble a frame without needing specialized equipment. A wooden go-kart also seemed safer to work with during construction since it does not require welding or high-temperature tools. At first, this made wood appear to be the best option for creating a simple and accessible design. However, as we started thinking more deeply about how the go-kart would actually be built, we realized that wood created several serious problems. One of the biggest challenges was how to properly join the pieces together. We did not have enough experience with advanced woodworking joints, and simply screwing boards together would not provide enough strength for a vehicle that needs to support a person’s weight and withstand motion, vibration, and turning forces. Without strong joints, the frame could loosen, crack, or even collapse over time, making the kart unsafe. Another issue was how much wood the design would require. In order to make the frame strong enough, we would need thick beams and multiple layers of boards, which would quickly make the kart heavy, bulky, and expensive. Using more wood to increase strength also reduces efficiency, since the extra weight would make it harder for the motor to move the kart. Even with all that material, a wooden frame would still not be as strong or durable as metal, especially when dealing with repeated stress from driving, braking, and turning. We also worried about how wood reacts to forces over time. Unlike metal, wood can crack, warp, or split, especially when holes are drilled for bolts and screws. These weak points could cause the structure to fail, especially around important areas like the axle, steering, or seat mount. Even though a wooden go-kart might work for a small prototype, it would not be reliable enough for a full-scale vehicle. In the end, we concluded that building the entire go-kart out of wood was not the best solution. While it was easy to work with, it lacked the strength, durability, and structural reliability needed for a safe and functional final project.

After evaluating different materials for our go-kart frame, our group began to see PVC as one of the most promising options. Compared to metal and wood, PVC appeared much easier to work with while still offering enough strength and durability for our project. One of the biggest advantages of PVC is how simple it is to cut, shape, and connect. Using basic tools like a hand saw and PVC cement, we could quickly build and modify our frame without needing welding equipment or advanced woodworking skills. This made PVC especially appealing because it allowed us to focus more on designing and testing rather than struggling with difficult construction methods. Another major benefit of PVC is its flexibility. Unlike metal, which is very rigid and difficult to reshape, PVC can be adjusted easily if something does not fit correctly. If we made a mistake or wanted to change the layout, we could simply cut a new piece and reconnect it. This gave us more freedom to experiment with different designs and improve our go-kart as we went. That flexibility made the building process less stressful and more efficient. PVC is also surprisingly durable for its weight. Even though it is much lighter than metal, PVC pipes are designed to handle pressure and impact, which makes them strong enough for a student-built vehicle. The lighter weight would also make the go-kart easier for the motor to move, improving speed and efficiency. A lighter frame would put less strain on the wheels, axles, and power system, which helps increase the overall reliability of the kart. In addition, PVC does not rust, rot, or splinter like metal or wood. This means it would last longer and require less maintenance, especially if the go-kart is used outdoors or stored in a garage. The smooth surface of PVC also makes it easier to attach other parts such as seats, steering components, and motor mounts. Overall, we concluded that PVC offered the best balance between strength, durability, and ease of construction. While it may not be as strong as metal, it is far more manageable for a school project and still provides enough support for a functional go-kart. Choosing PVC would allow us to build a frame that is safe, lightweight, and adaptable, making it the most practical material for our final design.