Gauge R&R for CNC Machined Parts: Reading the Numbers
A gauge R&R study shows whether your inspection method can separate good parts from bad. Here is how to set one up, read %GRR, and fix a failing result.
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Technical Guides
Practical engineering guidance for CNC machining decisions.
Latest technical guides
6061 vs 6082 Aluminum for CNC Machining: Which Grade Fits
6061 vs 6082 aluminum compared for CNC machining: composition, temper, distortion, anodizing response and how to approve a substitution on a real drawing.
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17-4 PH Stainless Steel for CNC Machining: Condition and Cost
17-4 PH stainless steel machines very differently by condition. How condition A, H900 and H1150 change cutting behavior, aging shrinkage, cost and inspection.
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Electroless Nickel Plating for CNC Parts: Thickness and Fit
How electroless nickel plating behaves on CNC parts: phosphorus classes, deposit growth on threads and bores, bake requirements, and how to call it out.
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Projected Tolerance Zone: How to Call It Out on a Drawing
A projected tolerance zone controls where the mating pin lands, not just where the hole is machined. How to apply the modifier and verify it.
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Micrometer vs Caliper for CNC Machined Parts: Which to Use
Micrometer vs caliper: how resolution, range and reading uncertainty differ, and which instrument to reach for on a given CNC machining tolerance band.
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