This video demonstrates how SOLIDWORKS Interference Detection helps prevent costly mistakes by identifying clashes between components during the design stage. It shows how overlapping geometry is visually highlighted, making it easy to spot issues in assemblies and multi‑body parts. The tool can also check for collisions in moving mechanisms, such as mismatched threads or contacting parts, ensuring correct fit and function. For weldment designs, it highlights overlapping structural members so they can be trimmed correctly. The video emphasises how resolving these issues early reduces rework, scrap and manufacturing costs while improving overall design accuracy.