Design and engineering guides for custom CNC parts: prepare CAD files, dimensioned drawings, tolerances and DFM requirements for a clearer manufacturing quote.
Use the categories above to move between machining fundamentals, drawing preparation, material choices and inspection strategy.
GD&T for CNC machined parts should start with a datum reference frame that matches how the part sits in the assembly, then add feature control frames only on surfaces you will inspect. Follow ASME…
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CNC internal corner radius design is how a pocket turns a corner so an end mill can reach the wall, chips can leave, and the part does not crack at a sharp notch. A…
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CNC hole depth to diameter ratio (L/D) is the hole’s depth divided by its diameter, and it decides whether a standard twist drill, a peck cycle, a mill, or a deep-hole process can hold…
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A 2D drawing vs 3D CAD for CNC quote is not a style choice. Send both: a solid (STEP is the usual exchange) for CAM, and a PDF for tolerances, threads, GD&T, Ra, coating,…
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How to reduce CNC machining cost is mostly a machine-time problem: fewer setups, larger tools, and fewer finishing passes. Enlarge internal fillets so a 6 mm or 8 mm end mill can cut the…
Read guideTreat +/- 0.005 mm as a feature-level precision band, not a blanket CNC default. The cases when +/- 0.005 mm CNC tolerance is realistic are short, rigid metal features: a finish-bored hole with L/D…
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CNC fillet radius vs end mill size is a one-way constraint: the internal radius on the print cannot be smaller than the mill radius, or the shop must switch to a smaller cutter. Pick…
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CNC wall thickness guidelines for milled parts are stiffness rules, not catalog minimums. For 6061-T6 aluminum, 1.5 mm is a practical short-wall target; 0.8 mm is a lower bound that often needs extra finish…
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How to dimension a CNC drawing for quote is a documentation job, not a styling job. The PDF must carry a datum scheme, overall size, hole locations, thread callouts (class and depth), a general…
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A CNC machining DFM checklist is the last pass you run on STEP and PDF files before you send a China RFQ. Fix missing datums, default tolerances tighter than ISO 2768-1 (1989) medium class,…
Read guideSend the material, quantity and critical features you already know. YXT will help identify the next practical review step.
