Japan's factories hit the retirement wall in 2007. American shops are hitting it now — 34,200 machinist openings a year against a shrinking workforce.

section 01 · kaizen in practice

Continuous improvement as it is actually run

Small, daily, worker-owned — not a banner on the wall. Start here for measurable improvement this quarter without buying software. Nine documents: section overview at Kaizen in Practice (D-KAI-00).

1. What Kaizen Actually Means Inside a Japanese FactoryD-KAI-01

   The seminar version vs the shop-floor version, side by side — plus the 5 supporting habits (teian, 5S, standard work, andon, gemba walks) that make daily kaizen possible.

2. Continuous Improvement Ideas for Factories: 10 Kaizen Patterns That Fit Small ShopsD-KAI-02

   Ten documented improvement patterns — setup-time, motion, defect-at-source and more — with typical effort and where each pays back first. Includes a real NIST MEP-documented kaizen result.

3. The 5-Day Kaizen Event Checklist (Printable)D-KAI-03

   A day-by-day checklist for running your first kaizen event: 2 weeks of preparation, 5 days of execution, and the 30-day follow-up that decides whether gains stick.

4. Kaizen vs Six Sigma: Which Should a Small Plant Learn First?D-KAI-04

   An honest comparison for shops under ~200 people — cost of entry, time to first result, and the cases where Six Sigma genuinely wins.

5. Kaizen After a Failed Lean Rollout: Restarting Without the BaggageD-KAI-05

   What the failure research says, what to keep from the dead program, what to drop, a 60-day restart sequence, and the three signs you are not ready yet.

6. What Kaizen Actually Costs a 20-Person Shop: DIY, MEP-Assisted, Consultant-LedD-KAI-06

   Year-one budgets sized for 20 people, itemized from published rate cards and BLS wage data — plus the state training-grant offsets most owners never claim.

7. Kaizen for Job Shops vs Repetitive Manufacturers: What TransfersD-KAI-07

   A tool-by-tool transfer map for high-mix shops: what ports unchanged, what needs translation, and what to skip.

8. Kaizen Events vs Daily Teian Systems: Cadence, Roles, ResultsD-KAI-08

   Burst vs drumbeat, compared on sourced results — with the sequencing answer for shops under 200 people.

section 02 · skills transfer & tacit knowledge

Keeping the expertise when the expert retires

A Big Four consultancy and The Manufacturing Institute project up to 1.9 million U.S. manufacturing jobs could go unfilled by 2033. When a 30-year machinist retires, the judgment in their head leaves too — unless it is captured. Japan met this wall a decade earlier; these documents record what its factories learned. Section overview: Skills Transfer & Tacit Knowledge (D-SKT-00).

1. When Your Best Machinist Retires: Pricing the Knowledge That Walks OutD-SKT-01

   BLS numbers on the machinist pipeline (34,200 openings a year against flat employment), plus a worked example for estimating your own exposure — with every assumption shown.

2. The 30-Minute Skills Matrix: Template and Setup GuideD-SKT-02

   A copy-ready matrix template with a 4-level scale, the one rule that keeps it honest, and how Japanese plants use theirs to drive cross-training — not just to decorate the office wall.

3. How Japanese Factories Turn Tacit Knowledge (暗黙知) into Teachable SkillD-SKT-03

   What 暗黙知 actually means, the SECI knowledge-conversion cycle in shop-floor terms, and the difference between documenting a procedure and capturing judgment.

4. Video SOPs: A 5-Step Method to Capture a Retiring Expert's Know-HowD-SKT-04

   A capture method that runs on a smartphone and one day of the expert's time — including the interview questions that surface the "why," not just the "how."

5. Manufacturing's Retirement Wave: The 5-to-2 Math Behind Your Next Machinist OpeningD-SKT-05

   A U.S. Department of Education estimate (via JLL, April 2026) says only 2 replacements enter manufacturing/trades for every 5 who retire.

6. The 30-Day Knowledge Transfer Plan for a Retiring Machinist: A Week-by-Week PlaybookD-SKT-06

   A compressed 4-week sequence for shops that get 30-90 days' notice of a retirement.

7. Taking the Skills Matrix Shop-Wide: A No-Software Rollout Plan for Every DepartmentD-SKT-07

   The department-by-department sequence to roll the 30-minute matrix method out shop-wide without buying software.

How this archive is made

Articles are drafted with AI assistance by the Gemba Works editorial team and fact-checked by a human editor before publication. We cite primary sources (U.S. Bureau of Labor Statistics, OSHA, NIST Manufacturing Extension Partnership, official vendor documentation) for every statistic, and we mark estimates as estimates. We do not publish invented case studies, fake testimonials, or reviews of tools we have not used. Details in our editorial policy.