I need a skilled CAD specialist who can jump in right away and refine a mechanical assembly using the existing 3D models I will supply. The task is time-sensitive, so I’m looking for someone who is comfortable opening the native files, making the required adjustments, and returning production-ready geometry without delay. You’ll be free to work in your preferred platform—SolidWorks, Inventor, Fusion 360, or similar—as long as the final assembly is delivered in STEP (and the original editable format) with properly constrained parts and an updated BOM. Key deliverables: • Updated 3D assembly file in original format • Neutral STEP export ready for downstream use • Any new or revised part files referenced by the assembly I’ll remain available for rapid feedback while you iterate, and I’d like the first pass within 1 hour. If that timeline works for you, let’s begin immediately.