Mechanical CAD Model and Engineering Drawing

6 weeks · 0 milestones

Produce a fully constrained 3D CAD model of a real mechanical component and a 2D engineering drawing to engineering drawing standards. The component must be non-trivial (at least 5 geometric features, not a simple block or cylinder). The engineering drawing must include: all views necessary to fully define the geometry, dimensions with correct GD&T callouts for at least 3 critical features, surface finish specification, material callout with grade/standard (e.g. Al 6061-T6, S275 structural steel), and a title block with part number, revision, scale, and projection standard. Preferred proof: a component designed for a real project (personal, academic, or professional) with physical fabrication evidence (photo of machined or 3D-printed part). Accessible alternative: a CAD model and drawing produced in FreeCAD (free, open-source) or Onshape (free education tier) for a realistic component scenario — no physical fabrication required, but the drawing must be to standard. Proof artifacts: the CAD file and engineering drawing (design artifact) and the material + tolerance specification (documentation artifact). Verification: a mechanical engineer reviews the drawing for standards compliance — 'these tolerances cannot be manufactured — what process were you specifying for?' and 'what does this GD&T callout mean in inspection terms?'

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