When moving a prototype to production, there are many factors to consider and the process required to turn an idea into a market-ready product can be complex and multifaceted.
Approximately 70% of manufacturing costs are driven by design decisions, whether it be material and process selection, tolerancing, or oversights in technical documents conveying design intents, the additional 30% is taken up by manufacturing decisions such as fixturing and tooling selection. A graphical view of this can be seen in figure 1
Figure 1 (Hallmann, 2020)
DFMA (Design for manufacture and assembly) is an engineering methodology that aims to reduce cost whilst maintaining optimal product quality and function. This is achieved by manufacturing and design engineers communicating during the design phase, intent on standardising features across the product and remove unnecessarily tight tolerances or requirement for superfluous manufacturing processes.