- Client
- Engineering data and AI company, international (name withheld under NDA)
- Industry
- Gearboxes & Power Transmission
- Service
- 3D Modelling & 2D Drafting
- Platform
- SolidWorks
- Client region
- International
- Parts
- Reducer shafts, die-cast housings, brackets, bell cranks, pillow blocks
- Package
- AP242 STEP + PMI, toleranced drawing, view images
- Tolerancing
- ISO 8015, ISO 2768-mK, ISO 8062-3 castings
The challenge
Every package had to be complete and self-consistent: datum structure, geometric tolerances, surface finish, material and process notes on the drawing, the same PMI embedded in the STEP, and images that match the drawing views. A single missing datum or an unmatched note fails the client's acceptance list, so the work is as much about checking as drawing.
Our approach
Each part was modelled from the client's brief, then toleranced according to its function: shafts with datum axes on bearing seats, runout on seal faces and keyway position tolerances; the die-cast gearbox housing with ISO 8062-3 DCTG/GCTG grades for as-cast geometry, ISO 2768-mK for machined dimensions, draft and parting-line notes, porosity limits to ISO 10049 on sealing faces and a leak-test note.
PMI was applied in the model and exported in AP242 STEP; the 2D drawing was produced from the same model so views and annotations stay linked; standard-view images were generated to the client's naming. Before dispatch each package was checked line by line against the client's acceptance list and our own checklist, and the check record was kept with the package.
What was delivered
Packages were accepted at the client's review and the programme moved from paid trial to continuing work, with drawing-only tasks (bracket, bell crank, pillow block, pump adapter plate) added to the model-based packages.
- AP242 STEP files with PMI
- Fully toleranced drawings to ISO 8015
- Standard-view image sets
- Per-package check records
Standards and conventions applied
- ISO 8015 fundamental tolerancing principle
- ISO 2768-mK general tolerances
- ISO 8062-3 casting tolerances
- ISO 1302 surface texture
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