Findings from Literature That Were Supported by this Case Study

In addition to allowing more prototypes to be created within a defined amount of time, use of commercial off the shelf parts to reduce complexity has been shown by data to improve the acceptance of the product that is launched to market. The data states that because more iterations are completed within a fixed time period before launch, the level of design refinement is statistically higher, and more users’ input has likely been considered because there was more time for trial testing [43]. This higher level of design refinement leads to a better product [22] [23]. Also, the idea of considering “Parallel Concepts” which is defined as evaluating very different approaches to a problem early in the ideation phase, is correlated with successful products. Essentially, this concept says that brainstorming should not lead designers down a narrow path of design options [44].

All options should be kept open early in the ideation phase, and a variety of differing approaches should be discussed before a concept is selected. This was demonstrated by the case study in August 2017. Throughout this month, the Faro Ion was known to be a viable tool to aid in bore measurement, but lots of stand-alone bore measurement concepts were

also considered. As discussed in the design progression, many of these concepts were very different from one another.

Scaling is another concept that can aid designers. Essentially, scaling a design can reduce the labor involved in prototype building [45]. This concept was demonstrated in the construction of the sample bore used in this case study. Although diameters and amount of overlap were held to match an actual bore so that the rover could be tested for proper fitment, the length of the sample bore was reduced. Also, subsystems can be optimized independently before the whole system is modeled. In situations where certain subsystems require a disproportionate amount of refinement, modeling only the subsystems that are unrefined can expedite the prototyping process, and direct focus on what needs to be modeled without wasting time updating all components of a comprehensive model [43].

This method was practiced in the case study by separating the body development from the mechatronics development. At any given time, there was a high likelihood that the goals of the most current prototype of each were very different. Similarly, requirement relaxation allows certain requirements of the project to be temporarily ignored in order to get a quick analysis of a subcomponent of the design [46]. This can be seen in the physical prototype that was built without a top glide rail. Although that was refined later, it was not the focus of the goal of that iteration, and was therefore left completely off the body.

APPENDICES Appendix A

Product Design Specification Chart

This chart was created during ideation in collaboration with the Digital Reproduction team to identify their needs. It was updated throughout the duration of the study.

Appendix B Current Process Matrix

This matrix was created to visualize the current process during ideation. Its purpose was to aide in demonstrating the needs and opportunities associated with parallel concepts being evaluated.

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