Precision Plastic Parts Reverse-CAD

I need a faithful digital twin of several small plastic parts that belong to mobile-device mechanisms. No reference files exist, so you’ll be reverse-engineering directly from the physical samples I provide and building the geometry from the ground up.

The goal is a fully constrained, history-based, parametric model—high detail is essential. Every snap-fit, draft angle, rib, clip, fillet and relief must be captured with a dimensional accuracy of ±0.05 mm, ready for downstream DFM iterations.

You’ll receive close-up photos, caliper measurements and, if helpful, a rough scan; however, the final deliverable must be natively editable in SolidWorks or Fusion 360 and exported as STEP. Alongside the 3D file, include a clean 2-D drawing of key dimensions and a short notes page on how you gathered data and verified tolerances.

Deliverables
• Native parametric CAD model
• STEP/IGES neutral export
• 2-D drawing with critical dims
• Brief measurement & deviation report

Acceptance criteria
• Max deviation ≤ 0.05 mm versus source part
• Feature tree remains fully editable, no rebuild errors
• Clear, English-named features and sketches

Before we start, we’ll lock down the part count and set milestones for each piece so you can show measurement screenshots or overlay checks at every stage.