CAD prep. Mfg-ready files. Production CAD.
CAD file preparation reference for manufacturing. Watertight geometry, format export, tolerance specification, manufacturing notes. Production-ready CAD.
CAD file preparation
Solid model with no missing faces, no gaps, no overlapping surfaces. Required for machining.
Key principles.
No gaps
Solid bodies must be watertight. Required for machining.
Standard formats
STEP AP242 most universal. IGES for legacy.
Per feature
GD&T or ± per ISO 2768. Default tolerance class.
On drawing
Material grade per AMS, ASTM, or proprietary.
Per ISO 1302
Surface finish symbols per ISO 1302.
Process specifics
Heat treat, plating, special instructions on drawing.
FAQ
STEP AP242 most universal. Preserves PMI. Cross-platform compatible.
Solid model with no missing faces, no gaps, no overlapping surfaces. Required for machining.
GD&T more functional. ± tolerance simpler. We accept either.
Yes — every quote includes free DFM review. Identifies issues before manufacturing.
Solidworks, Inventor, Fusion 360 supported. STEP recommended for cross-platform.
Recommended for complex parts. CAD model alone OK for simple geometry.
Get an instant quote
Send your CAD — we reply with detailed pricing, lead time, and DFM feedback within 4 working hours.
Talk to an engineer
WhatsApp our team directly. Most messages answered within 12 minutes during work hours.
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Read more →Send a CAD file. Get an engineering-reviewed quote.
No minimum quantity, free DFM feedback from a senior manufacturing engineer, and an NDA signed before file review on request.