Tolerance is where design intent meets manufacturing reality. Specify too loose and parts fail to assemble, leak, or rattle. Specify too tight and your mold cost can jump 30–50 percent for no functional gain.
Design for Manufacturing: 7 Critical DFM Rules for Injection Molded Parts
Design for Manufacturing (DFM) is one of the most overlooked yet most impactful stages in the injection molding process. When done right, DFM can reduce tooling costs by 20-40%, shorten cycle times, and nearly eliminate post-molding defects. When ignored, it leads to expensive mold modifications, delayed timelines, and parts that simply don’t work as intended.