Every process has inherent advantages as well as limitations, and prototyping processes are no exception. New processes, materials and technologies have only served to add to the options and the pitfalls. Be sure to familiarize yourself with the pros and cons of the various prototyping processes available. And then clarify the reason(s) for creating the cast prototype before releasing the design for production.
To determine which prototyping process is best suited to meet your needs. Ask yourself:
- Are we creating this prototype simply for appearance only?
- Is fit essential with critical tolerances?
- Will this part be subjected to mechanical testing?
- Will we be testing for RF leakage?
- Is corrosion resistance an issue?
- Is weight and strength a linked issue?
- Does heat dissipation play a role?
- Do you anticipate possible design changes?
- Do you know what design changes will cost?
- How many castings will you need to satisfy everyone on the team?
The answers to these and other related questions will guide you in the direction of the most suitable prototyping process and subsequently the success or failure of your project.