The weighing balance was probably one of the earliest engineering machines invented, but that did not mean it met the precision required in engineering and mathematics (Clark, 1947). Since the invention almost three or so centuries back, the weight balance has undergone various engineering designs to improve it. However, it hasn’t been easy, given to date the weighing balance still harbors so many mistakes, which continue to affect its precision and usage. In its inception, the weigh balance needed a counterweight to function. That was cumbersome and mostly inaccurate; engineers then developed the spring balance to carry out the same purpose. The scale was a little better, but not the best. In recent past, we have the electric weighing machine. Attractively designed, the electric level is portable and is more accurate compared to all others before it. However, it has specific design flows that if fixed, can significantly improve the performance of the machine. The efforts to improve the accuracy of the weight balance are a result of the importance of the device. It is used almost in every aspect of human life. Users range from industries, retail stores to personal uses, often playing roles nothing else would do. Without the machines, many things would go wrong in all those places where they are used. Therefore, the need to improve its accuracy is just from the pressure to provide users with something more efficient. The repercussions of the design flaws in the weight balance can be enormous. For instance, industries that make sales based on the mass or weight of their products would experience operational breakdown whenever this weight balance fails. They would also incur losses if the weight machines inaccurately measure the weight, making them charge less. That is just an example of what the design flaw in the machine balance can do.
Compared to its predecessors, most of the electric weight machines are smaller in size Simonson, R. R., (Thompson & Mangseth, 2013). This potentially makes them portable and more accurate when measuring weights for small items. That is a disadvantage, a device that is large enough as those before would be used on several things indiscriminately. For instance, the spring balance would be used to measure items ranging from household items to industrial goods. Today’s designs mean we have to have more than one device if we need to use them in multiple things. There is possible design improvement which can be made to correct this design flaw, potentially checking on the machine sensors and building something large enough to be used on various items. That is one of the machine’s undoing; there are other design flaws. Most of not all of these electric need some source of energy; it can be electricity, batteries or any other. What that means is the weight balance cannot be used where there is no source of energy. The earlier weight balances were designed to be used even in remote areas where there is no source of energy. In fact, they did not need any of such to operate. We would view the new machines as improved, but some of the designs make it hard to use them. We could imagine design a device more accurate without energy is a necessity.