Sheet Metal Fabrication
Laser cutting, bending, forming, and assembly: material thicknesses, bend considerations, tolerances, and how to structure a fabrication RFQ.
Read the working draft →Custom CNC & Sheet Metal Parts
Guides for buyers commissioning custom parts from Chinese machine shops: sheet metal fabrication, CNC machining, and surface finishing. We focus on the specification choices and documentation that separate serious manufacturers from resellers.
Working drafts online. The guides below are placeholders under active research. Tolerances, material references, and any process figures will be verified against primary sources and dated before final publication. verified content coming soon.
CNC Machining
Milling and turning for prototypes through production: materials, achievable tolerances, surface finish, and the drawing package shops expect.
Read the working draft →Surface Finishing
Anodizing, plating, powder coating, and passivation: what each process affects, and how cost, lead time, and compliance requirements interact.
Read the working draft →Before you quote. Regardless of process, prepare: a clear drawing (native or neutral CAD plus PDF), material specification, critical tolerances, target quantity, and finishing requirements. Every guide in this section will explain how suppliers use these inputs — and what happens when they are missing.
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