CNC & Machining Process Review
Machine choice, operation sequence, setup, tooling, workholding, programs, inspection and cycle time.
Fifty-five years on the shop floor, from a machinist’s apprenticeship to running plants and their ERP systems. I help small and mid-sized manufacturers fix the scrap, setups, late jobs and cost overruns that everyone has learned to live with.
| OP | OPERATION | ROUTED HRS | ACTUAL |
|---|---|---|---|
| 10 | Saw cut | 1.5 | 1.6 |
| 20 | CNC turn – setup | 1.0 | 3.8 |
| 30 | CNC mill | 6.2 | 6.5 |
| 40 | Deburr & inspect | 2.0 | 2.3 |
A machinist sees the machine. A manager sees the schedule. The ERP team sees the data. I’ve done all three jobs, so I follow the problem wherever it goes.
Setup, tooling, workholding, operation sequence, the CNC program and cycle time. What the operator actually does, compared with what everyone thinks they do.
Bottlenecks, queues, handoffs, rework loops and inspection. Where jobs wait, where they come back and where the work gets done differently from shift to shift.
Routings, standards, BOMs, labor reporting and job cost. Why the ERP says a job made money when the floor knows it didn’t.
Here is the first question I’d ask, and the first places I’d look.
You don’t need another full-time hire. You need the problem solved and the fix to hold.
One problem that keeps coming back. I look at it on the floor and in your data, talk to the people doing the work, and give you a short written report with the likely root causes and what to fix first.
Machine choice, operation sequence, setup, tooling, workholding, programs, inspection and cycle time.
Quoted against actual for material, setup, labor, secondary operations and scrap, and where the ERP disagrees with the floor.
Follow a process end to end to find waste, bottlenecks, rework, poor handoffs and weak controls.
Assign the actions, test the changes, measure the result and make the better method the standard one.
A few hours a month as an outside set of eyes for an owner or plant manager.
Practical sessions for supervisors, programmers and planners, or an independent check before a big machine, CAM, ERP or sourcing decision.
You describe the problem. I ask how long, how often, and what changed.
On the floor with your people, then the drawings, routings, programs and job history.
Symptoms separated from causes. A short list of practical changes, in order.
We measure whether the fix holds. If it doesn’t, we go back to Op 20.
A five-year indentured apprenticeship, then a career making metal and plastic parts in small and large quantities, on manual lathes, mills and grinders, legacy machines and CNC. Later I moved into management and manufacturing engineering, and into the systems that run the business.
Call or email with a short description. If I can help, I’ll tell you how I’d approach it. If I can’t, I’ll tell you that too.