Modify Existing CAD Design

I have an existing CAD file that needs a focused redesign rather than a complete overhaul. The core geometry is already in place; what I’m after is a clean, precise modification that integrates seamlessly with the current model and retains all original references and constraints.

You’ll receive the native CAD file as soon as we start. After reviewing it, I’d like you to adjust the specified areas, update any dependent sketches or feature trees, and return a fully parametric model alongside a PDF drawing for quick review. If you notice clashes or inefficiencies while working, flag them—small improvements that keep the intent intact are welcome.

Deliverables
• Updated native CAD file (same format supplied)
• Exported STEP/IGES for cross-platform checking
• One PDF layout highlighting the changes

A short change log noting the features you edited will help me trace revisions. Let me know your preferred CAD platform and estimated turnaround once you’ve seen the file.