https://ravis-innovative.pages.dev/blog/ Notes on precision machining, metrology and aerospace quality. en https://ravis-innovative.pages.dev/blog/what-as9100d-adds-to-iso-9001 https://ravis-innovative.pages.dev/blog/what-as9100d-adds-to-iso-9001 AS9100D is ISO 9001:2015 plus roughly a hundred aerospace-specific requirements. Here is what the additions cover and what they mean when you are approving a machining supplier. 2026-08-22 https://ravis-innovative.pages.dev/blog/sizing-a-part-to-a-machining-envelope https://ravis-innovative.pages.dev/blog/sizing-a-part-to-a-machining-envelope A machine's travels are not the space your part can occupy. How to read a VMC specification, and the four numbers that decide whether a job fits. 2026-08-22 https://ravis-innovative.pages.dev/blog/reading-a-cmm-specification https://ravis-innovative.pages.dev/blog/reading-a-cmm-specification A coordinate measuring machine's headline number is the constant term of a formula. Here is how to read E0,MPE and work out what a CMM will actually hold over your part. 2026-08-22 https://ravis-innovative.pages.dev/blog/in-house-metrology-and-qualification-time https://ravis-innovative.pages.dev/blog/in-house-metrology-and-qualification-time Most shops at this scale outsource inspection. Keeping the CMM in the building changes the feedback loop between machining and measurement, and that is where the time goes. 2026-08-22 https://ravis-innovative.pages.dev/blog/first-article-inspection-as9102 https://ravis-innovative.pages.dev/blog/first-article-inspection-as9102 FAI is not optional for an AS9100 supplier when the customer invokes it. What Forms 1, 2 and 3 cover, when a partial FAI is enough, and what triggers a re-run. 2026-08-22