QualityEngineerAI

most CAPAs don't take 6 weeks because the problem is hard. they take 6 weeks because the 8D sits in someone's inbox between D4 and D5, waiting on a meeting. recut the May 19 demo down to the part that fixes that. 24 min, no signup: app.qualityengineer.ai/webinars/your-…

@ninjaneeer yeah the month-later forget is real. seen the same thing surface during PPAP rerun, three new ops on the part and the original setup notes only live in one person's head. saving setup with the program is exactly what holds when audit pulls the records.

Wisdom is knowing you can shave 30% off the cycle time, but not doing it because a stable process you do not have to babysit is much more valuable.

@DreamweaverOnX modded my Gaggia Classic twice, PID and naked portafilter. doesn't solve any problems, definitely creates new ones. mostly the question of whether you should've just bought a Bambino Plus and got your Saturdays back.

who else is in the espresso machine midlife crisis right now I think all my problems could be solved with a modded gaggia classic

@jay625jay AI-generated failure modes go abstract because training data is too generic. real ones are plant-specific. 'station 14 fixture wear causes hole position drift' beats 'manufacturing process variation causes dim non-conformance' every time. accuracy-vs-time is downstream.

FMEAのレビューで、 時間を優先しますか？精度を優先しますか？ どちらを選んでも、 「見るべき箇所」を知らなければ 本当の意味での品質担保はできません。 AIが生成したFMEAには やらかしやすいパターンがあります。 ・故障モードが抽象的すぎる ・致命的リスクがRPNの低さで埋もれる ・承認者が内容を理解していない この20項目を把握しておくだけで、 レビューの時間も精度も変わります。 現場18年の経験をチェックリストにまとめました。 👉 brain-market.com/u/jayjay/a/b5c… #製造業DX #FMEA #AI活用

@guretamine the bit modern training loses is when to STOP. PPAP wants you done at 30, real capability is still moving, supplier QE picks the standard over the math, lot gets RMA'd six months later. n is the whole game and the standard pretends it isn't.

Accuracy matters in process capability analysis. ​I’ve updated "Takeuchi’s Formula" for Cpk Std Error into a 3-tier family. [Ver.1] Field Model [Ver.2] 2nd-Order Model [Ver.3] High-Accuracy Model #QualityControl #QC #SixSigma #Statistics #Cpk #takeuchisfomula

Genuine question for the QE crowd: from intake to closure, how long does your average CAPA actually take? Two weeks, six weeks, six months, longer? We're showing one closed end to end, live, May 19 at 2pm CT. @e77a5bf0-d1d3-4836-9458-94ca1afde470" target="_blank" rel="nofollow noopener">events.teams.microsoft.com/event/1a1f0b72… #CAPA

@jdbuzzman the gap I see most is between 'countermeasure implemented' and 'reoccurrence actually eliminated.' a lot of 8Ds close at D7 when the action's in place, not when it's verified effective at volume. same failure mode's back in three months. how do you verify before close?

Some companies may call their corrective action method, countermeasure, and list out the issues to action with countermeasures to eliminate them. What's important is to identify the true root cause and eliminate the possibility of reoccurrence. #countermeasure #rootcause #quality

8D D6 says verify effectiveness. Most teams stop at "verified" and never re-measure. AI can flag when a CAPA verification window expires without fresh data. That is the row auditors actually pull. Live walkthrough, May 19 at 2pm CT. @e77a5bf0-d1d3-4836-9458-94ca1afde470" target="_blank" rel="nofollow noopener">events.teams.microsoft.com/event/1a1f0b72… #CAPA #8D

@FailModeLens sampling isn't random. auditor picks the highest-severity PFMEA row, then asks for that operation in PFD and CP. break point is usually the detection column: PFMEA says SPC, CP shows visual inspection, PFD doesn't show the SPC station. ECN never cascaded.

PFD, PFMEA, and Control Plan are the same process at different levels of detail. Audits do not read all 3 end-to-end — they pick 3 operations and verify they reconcile. Most teams fail this targeted cross-reference test by the second ECN.

Six weeks from CAPA intake to closure is normal. It is not good. We're walking one all the way through, live, May 19 at 2pm CT. End to end, with the receipts an auditor actually asks for. @e77a5bf0-d1d3-4836-9458-94ca1afde470" target="_blank" rel="nofollow noopener">events.teams.microsoft.com/event/1a1f0b72… #CAPA #IATF16949

@SigmaResolve seen this on a Tier 1 reject. SQE pulled the CI, saw 1.07 lower bound, RMA'd the whole lot. AIAG sets 30 as the floor for initial study, says nothing about it surviving a customer engineer who reads past the point estimate.

Your PPAP submission says Cpk = 1.45 from 30 parts. The customer reads 1.45 as a true value. The actual 95% CI is [1.07, 1.83]. The minimum 1.33 threshold is inside that interval. The estimate told them what they wanted to hear.

SPC chart with no reaction plan is wallpaper. who stops the line, who calls engineering, when does the part go on a hold tag. if those answers aren't on it, you have a poster, not SPC. what's your reaction column actually say?

D6 in 8D is implement AND validate. half the closures we audit have D5, D6, D7 all signed same day. validation needs production data, not a meeting. how many cycles does your team require before D6 closes?

@peteoxenham @ycombinator 1.33 is the floor. half the OEMs now ask 1.67 on safety chars and 2.0 on signature features. and the 'too' keeps getting added until your 30-part PPAP study can't carry the math anymore.

finally, i have spent AGES looking for a shop who could make me this part thank you @ycombinator for funding these companies!!

@markgallagher_2 built a PFMEA tool, so honest take: structure parts (step IDs, ECN cascade, audit trail) work. SOD scoring is where it breaks down, no model knows your operator's grip on torque tool 14. Kaizen is harder, you can't gemba through a screen. (founder, disclosure)

gtfo and be serious

shipped Cpk auto-pull into PPAP element 11 weeks ago. people still type the numbers in by hand. either they don't trust it or the toggle is buried. our problem either way. where do you pull Cpk from today?

@SonnyMarchbanks we've seen this play out. PFMEA RPN past 700, team flags the failure mode, program manager closes the action with "operational considerations" in the comment field, station ships anyway.

TO: Grand Moff Tarkin & Lord Darth Vader FROM: Sonny Marchbanks, QC Manager DATE: May 4th SUBJECT: DS-1 Orbital Battle Station Safety & Vulnerability Audit Overview A comprehensive quality control and safety audit of the DS-1 Orbital Battle Station has revealed critical design flaws that present an immediate, existential threat to the station, its mission, and its personnel. Immediate remediation is required to prevent catastrophic failure and unacceptable liability. Key Findings & Required Actions • Catastrophic Structural Vulnerability: A two-meter, completely unshielded thermal exhaust port in the equatorial trench leads directly to the main reactor. A single precision strike will trigger a station-ending chain reaction. • Action Required: Install immediate physical shielding (e.g., heavy-duty grate, 90-degree pipe bend) before any combat deployment. • Severe OSHA Violations: The pervasive lack of guardrails near bottomless drops, specifically around tractor beam controls and firing shafts, is a massive personnel hazard. • Action Required: Install standard 42-inch fall protection across all 120 kilometers of the station. • Substandard Equipment & PPE: Current-issue Stormtrooper helmets severely restrict vision, directly impacting combat efficacy. Additionally, Superlaser technicians lack adequate personal protective equipment against planet-destroying radiation. • Action Required: Recall and redesign infantry visors; issue proper polarized safety shielding for all primary weapon operators. • Hazardous Waste Management: Detention block trash compactors lack internal emergency overrides and contain unmanaged biological threats (Dianogas). • Action Required: Install internal manual shut-off switches immediately. Conclusion Failure to address these issues—particularly the exhaust port vulnerability—severely compromises the Empire's massive financial and strategic investment. We strongly advise pausing deployment until these essential retrofits are complete.

position with no MMC modifier defaults to RFS. supplier holds the hole pattern tighter than design ever needed, a week of capability runs, every part passes. designer assumed MMC was implied. what GD&T mark do you see misread most?

half the surface finish callouts I've audited only got Ra checked. lay direction, machining allowance, sometimes Rz, all skipped. part comes back with chatter perpendicular to flow and nobody can explain why. what's the most common print symbol you see ignored?

@SigmaResolve qcc/pyspc handle the math fine. cost lives in the report template. PPAP submissions expect AIAG-MSA layout and customer QEs scan it in 30 seconds for the boxes. rebuilding that template in R works, just not free, and it's the line item teams forget when they price the switch.

'Free SPC software' is doing a lot of work in those Capterra listicles. A 30-day Minitab trial is not the same product as the qcc R package, but they get the same green checkmark. The categories that actually differ: