Blog

Notes on precision manufacturing, drawing-led RFQs, and working with suppliers—updated as new articles are published.

October 7, 2026
Mill Test Reports Explained: How to Read and Verify Material Certs from a China CNC Supplier

What a mill test report shows, how EN 10204 2.2, 3.1 and 3.2 certificates differ, and how to check an MTR from a China supplier before you accept parts.
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October 7, 2026
Delrin vs Nylon for CNC Machined Parts: Strength, Moisture, Cost and When to Switch

Delrin (acetal/POM) vs nylon for machined bushings, gears and wear parts: dimensional stability, moisture uptake, cost, and how to call the grade on a China RFQ.
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October 7, 2026
Sheet Metal Gauge Chart: Steel, Stainless and Aluminum Gauge to mm

Gauge to mm and inch thickness for steel, galvanized, stainless and aluminum sheet, and why drawings sent to a China fabricator should call thickness in mm.
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September 14, 2026
CNC Carbon Fiber Machining: A Guide for Composite Parts

What to specify when sourcing CNC carbon fiber machining: fiber grade, diamond tooling, dust control, and 5-axis routing for composite parts.
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September 14, 2026
Automotive CNC Machining: Prototyping Through IATF 16949 Production

How automotive CNC parts move from fit-check prototype to IATF 16949-controlled production: method choice, PPAP, and what changes at each stage.
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September 14, 2026
CNC Prototype to Production: When to Move to Bridge or Full-Scale Manufacturing

Signs it's time to move from CNC prototypes to bridge or full production: tooling investment, lead time, and how to structure the RFQ for scale-up.
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September 1, 2026
How to Cut Stainless Steel: Machining Methods Compared

CNC turning, milling, laser and waterjet compared — which method fits your stainless part by stock form, thickness and grade before you send the RFQ.
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September 1, 2026
CNC Surface Finish Types: Anodizing vs Powder Coating vs Passivation

Which finish applies to your part — anodizing is aluminum-only, passivation stainless-only, powder coating both. Cost, durability and fit compared.
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September 1, 2026
Sheet Metal Fabrication Cost Guide: What Drives Your China Quote

What actually drives a sheet metal quote — nesting waste, bend count, weld symbols, tooling amortization and finish, explained line by line.
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August 3, 2026
GD&T Basics for CNC Machining: How to Read Tolerance Callouts on Your Drawing

A practical GD&T primer for engineers sourcing CNC machined parts — how to read flatness, position, and runout callouts so your RFQ quotes accurately.
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August 3, 2026
Acrylic vs Polycarbonate CNC Machining: Choosing the Right Clear Plastic

Cast vs extruded acrylic, vapor polishing, and impact resistance vs polycarbonate — a material guide for cover lenses, light pipes, and optical parts.
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August 3, 2026
How to Submit an RFQ for CNC Machining in China: A Drawing-Led Checklist

What to include in a CNC machining RFQ — drawing, tolerances, finish spec, quantity — so we can quote accurately on the first pass.
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