Most Unit Cost Is Designed In Long Before The Line Starts Up
Lean, value engineering, and digital tools that cut cost, waste, and delay
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These articles apply lean principles where they save the most: in the design and the process plan, before waste reaches the floor. We write about value engineering, DFMA, setups, and flow. We also show how digital twins and simulation let a plant test a change before it moves a machine. Each one ties a principle to an engineering decision.
PPS engineers write every article from our design work and consulting in manufacturing. Use them to find cost in a product you already make or to plan a new line. They also help you judge which digital tools are worth the effort. When unit cost is the problem, have the design reviewed, not only the process.
One design moves through all seven topics. Simulation checks it, best practices shape it, and methodology proves the model matches the part. Manufacturing and sustainability set its cost and footprint. Leadership and project management keep each decision on time.
We apply lean manufacturing principles to the design first. Each part and feature is traced to the function it serves. That way, the cost you see on the floor traces back to the decision that created it.
Value engineering and DFMA remove what the function does not need. That means parts that should not exist, tolerances tighter than needed, and features that need a second setup.
Every change is checked in analysis before anything is cut. Lower cost never comes at the price of a part that fails in service or at final inspection.
Your team runs the floor improvements. We engineer the parts, tooling, and fixtures so those improvements stick: fewer setups, faster changeovers, and features that only assemble one way.
Standards behind these articles: ASME Y14.5 (dimensioning and tolerancing) and NIST MEP on lean and process improvement.
Cut part count, setups, and assembly steps so the design costs less to build at any qualified shop you choose.
Fewer parts, less cost.
Covers
Part Count
Setups
Assembly
Trace each dollar of unit cost to its function, then cut what the function does not need, proven in FEA.
Cut cost, keep function.
Covers
Function
Unit Cost
FEA
Test a process or equipment change in a validated digital model before it moves a machine on your floor.
Test it before you move.
Covers
Process
Equipment
What-If
Late validation cycles delay vehicle launches across model-year gates.
Ready for the next gate.
Applications
EV Thermal
Crash
NVH
Bucket and structural failures shut down remote mines for days at a time.
Less downtime in the pit.
Applications
Wear
Fatigue
Heavy Haul
Outdated kiln designs waste fuel and limit the use of alternative fuels.
Cut fuel waste in kilns.
Applications
Kiln CFD
Clinker
Alt Fuel
Untested mixing dead zones trigger FDA findings and costly batch rework.
Validate before building.
Applications
Reactor CFD
Mixing
GMP
Who Writes These Articles, And Where Do The Methods Come From?
Engineers write every lean manufacturing principles article on this page. The people who run PPS projects write about problems they see in real designs. They cover what went wrong, how they checked it, and what they would do next time. The articles teach methods, not sales pitches.
Cost advice from people who have never designed a part is easy to find and hard to trust. So each post names its author and shows when it was last updated. Nick Duff, Co-Founder & Chairman, CEO, is an aerospace stress engineer on flight-critical aerospace and defense programs. Tom Cushing, Co-Founder & CTO, is a licensed Professional Engineer (PE).
Tom leads the tools, methods, and design QC our engineers use from assessment to delivery. PPS engineers run FEA, CFD, CAD, and DFMA in-house. Every design goes through that QC, and the articles follow the same methods. You can read their full backgrounds on our About page. If an article does not match your own project, tell us and we will check. We reply within one business day.
Can I Use The Methods In These Articles On My Own Designs?
Yes. Each lean manufacturing principles article explains the method step by step, so you can apply it to your own design today. It covers what to set up, what to check, and what a good result looks like. We write for practicing engineers and the managers who lead them.
There is a limit, though. An article cannot see your loads, materials, volumes, or drawings. The same method can mislead you when the inputs are off. A tolerance set under ASME Y14.5 still depends on how the part works in your assembly. When cost or a safety margin depends on the answer, get a second look.
Use the articles to find cost in a current product, plan a new line, or train a new engineer. Bring the hard calls to us. That is what our free assessment is for. You send the data, and an engineer who can see the whole problem reviews your project scope. You get a roadmap that shows what we would check, change, or test next, and why.
Where Do Lean Principles Save The Most Money?
Lean manufacturing for engineered products save the most where the cost is decided, and most of it is decided in the design. A plant can remove waiting, motion, and rework. But it cannot remove a part that should not exist, or a feature that needs a second setup.
That waste survives every improvement event, because floor work never changes a drawing. NIST's Manufacturing Extension Partnership describes lean as removing waste so value flows to the customer. When a part forces three setups and hand fitting, flow stops at the same station every shift. The line pays for it in labor, scrap, and work in process.
So we start with value engineering and DFMA. We trace each part and feature to the function it serves, then remove or simplify what the function does not need. Every change is checked in analysis before anything is cut. Your team keeps running the floor improvements, now on parts that support them. Send us the drawings, volumes, and the cost breakdown you have. We reply within one business day.
Unit cost too high to ship? Get a free assessment and roadmap.
Send your CAD, data, and goals. We review your project scope in a free assessment and reply within one business day with next steps.
On-site assessments that require travel are quoted separately.
