Let's Combinate · 31 Aug 2026 · 13m
Subhi Saadeh, founder of Let's Combinate, explains the fundamentals of acceptance sampling, clarifying that it is a probability-based tool rather than a guarantee of quality. He distinguishes between attribute sampling (counting defects) and variable sampling (measuring characteristics), referencing standards like ISO 2859-1 and ISO 3951. Saadeh details how Acceptance Quality Limit (AQL) indexes sampling plans and introduces Operating Characteristic (OC) curves to visualize producer and consumer risk. The episode concludes that selecting a sampling plan is a judgment call to balance the risk of rejecting good batches against accepting bad ones.
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Stephen Hawes and Lucian Chepa of Opulo discuss their quality control philosophy, emphasizing that testing is a critical second product. They detail the implementation of the 'QC Buddy' system to combat human error and the use of 'Gundam' software for functional testing of PCBs and assemblies. The episode covers decisions on traceability depth, AQL sampling for high-volume components, and designing foolproof jigs to prevent assembly mistakes.
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