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jduncan@machiningconceptserie.com

Deburr & Edge Break Callouts: How to Avoid Sharp Edges Without Hidden Cost

By Blog

A small note on a print can create a surprisingly large amount of confusion.

“Deburr all edges.”
“Break all sharp edges.”
“No sharp edges.”

Those instructions sound simple, but they can mean different things to engineering, purchasing, quality, and the machine shop quoting the work. One team may expect normal burr removal. Another may expect every edge to have a visible chamfer. A quality inspector may reject a part because an edge “feels sharp,” even if the drawing never defined what sharp means.

That is where hidden cost starts. Read More

June 2, 2026
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Threads in Production: Callouts, Class of Fit, and Gaging That Prevent Repeat Rejects

By Blog
Go/no-go thread plug gage and thread ring gages used for production CNC machining inspection

Thread gaging helps confirm that machined threads meet the print requirement before parts move through production or assembly.

Threaded features are one of those production details that does not always get attention until parts start failing inspection or assembly.

A tapped hole, outside thread, set screw hole, port, or small threaded feature may only take up one line on the drawing. But in repeat production, that one line can create scrap, rework, assembly problems, inspection delays, and supplier/customer disagreement if the callout is not clear. Read More

May 5, 2026
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CNC Turning Tolerances: What’s Reasonable, What Costs More, and What Risks Scrap

By Blog
Precision turned part being checked with a digital micrometer during dimensional inspection

Tighter CNC turning tolerances often require more inspection time and closer dimensional control.

A tolerance callout can be one of the biggest cost decisions on a turned-part print.

On a CNC lathe, tighter tolerances often mean slower cutting parameters, lighter finish passes, more in-process checks, and more final inspection. When that precision protects fit or function, it is worth it. When it is applied too broadly, it narrows the process window and increases both cost and scrap risk. Read More

April 14, 2026
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Blanket Orders and Release Schedules: A Practical Guide for Repeat CNC Machining

By Blog
Organized bins of machined parts staged for repeat CNC machining production

Organized inventory staging helps programs stay on schedule.

If you buy the same CNC-machined parts repeatedly, the admin load can quietly get out of control: constant POs, constant “what’s the ship date?” emails, and too many surprises when demand shifts. A blanket purchase order (blanket order) paired with scheduled releases is one of the cleanest ways to reduce that friction and improve delivery reliability. Read More

March 10, 2026
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CNC Machining RFQ Checklist: What to Send for Faster, More Accurate Quotes

By Blog
CNC machining RFQ checklist setup with a technical drawing, digital caliper, micrometer, and CAD model on a laptop.

Getting a fast, accurate quote starts with a complete RFQ package—drawing, model, material, and key callouts.

When you request a quote for precision CNC machining, the fastest way to get an accurate price and lead time isn’t “send less”, it’s send the right info the first time.

Below is a practical RFQ checklist we recommend for CNC turned, milled, and Swiss-machined parts. It reduces back-and-forth, prevents assumptions, and helps your supplier quote exactly what you need. Read More

February 17, 2026
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Fanuc vs. Haas vs. Mazak vs. Okuma: Which CNC Control Fits Your Parts—and Your Shop?

By Blog

Comparison graphic featuring Fanuc, Haas, Mazak, and Okuma CNC controls in a four-quadrant layout with a bold VS in the center.Choosing the Right CNC Control for Precision Machining

Choosing a CNC control isn’t just about brand preference—it directly impacts operator experience, setup time, cycle efficiency, automation options, and ultimately part cost. At Machining Concepts, we primarily run Fanuc and Okuma, but the four controls we encounter most often in precision CNC machining are Fanuc, Haas, Mazak (Mazatrol), and Okuma (OSP). While there are many other control systems on the market, we’ve chosen to focus on these four because of their prevalence in U.S. precision machining. Here’s a practical, shop-floor comparison to help engineers and buyers understand what each system brings to the table. Read More

August 21, 2025
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The Most Common Aluminum Alloys for Precision Machining

By Blog

3-inch 6061-T6 aluminum round bars stacked on an orange warehouse rack with a “6061-T6 Aluminum Ø3.00 in” label.

The Most Common Aluminum Alloys for Precision Turning & Milling in Contract Manufacturing

Choosing the right aluminum alloy can make or break a machined part’s cost, lead time, and in-field performance. In contract manufacturing—where volumes, designs, and end uses vary widely—the “best” aluminum depends on what you’re optimizing for: machinability, strength-to-weight, corrosion resistance, cosmetics, weldability, or regulatory compliance.

Below is a practical guide to the aluminum alloys we see most often in precision CNC turning and milling, with tips to help engineers write clearer prints and make smarter tradeoffs. Read More

August 12, 2025
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