The source focuses on the challenges associated with the final stages of production in additive manufacturing, specifically addressing the time-consuming and inconsistent nature of manual post-processing. It describes how this manual labor often serves as a significant impediment, or bottleneck, particularly when manufacturers must meet tight deadlines or high-quality standards. The text then introduces the solution provided by Proto3000 Vapor Smoothing services, which automates this process. This automated method is promoted as a way to eliminate manual labor, achieve a smooth, injection-molded appearance, improve mechanical performance, and maintain the dimensional accuracy of the printed parts, ultimately reducing both time and cost. For more episodes, visit https://thebusinessofmanufacturingpodcast.podbean.com/