Tensile Test Insights for CNC-Machined Parts: Ensure Material Reliability Before Failure Happens
Introduction In my early days as a process engineer, I underestimated the importance of tensile test. I thought if the CNC machining was accurate, then the part was good. Simple as that. But I learned quickly — and sometimes painfully — that even the most precisely cut components can fail if their material properties aren’t […]
Elongation in Machining: What Engineers Must Know About Material Ductility
Introduction Elongation is one of those material properties that doesn’t always get the attention it deserves—until something breaks. I’ve seen it firsthand in my work with CNC machining projects: a part passes dimensional inspection but fails under load. Why? Low elongation. That was the first time I realized how much elongation can affect the real-world performance of […]
Zinc Metal for Machining: Properties, Applications, Design Tips, and Supply Chain Insights
Introduction Zinc metal isn’t just another industrial material — it’s a workhorse that quietly powers a surprising number of industries. I’ve been working with metals for over a decade, mostly in the context of CNC machining and material sourcing. Among the metals I’ve worked with, zinc metal stands out for its balance of cost, machinability, and versatility. […]
What Is an OBJ File? How to Open, Convert, and Use It in 3D or Manufacturing Projects
What Is an OBJ File? If you’ve worked with 3D models, especially in design or printing, you’ve probably come across something called an OBJ file. But what is it, really? An OBJ file is a type of 3D image file format that stores 3D geometry—like the shape, texture, and layout of an object. It was developed by Wavefront […]
How to Work with Chrome Metal in Machining: A Practical Guide
Chapter 1: What Is Chrome Metal? Before diving into CNC machining details, let’s clear up one thing: what exactly is chrome metal? Many people confuse chrome metal with pure chromium. Chrome metal usually refers to metal parts that have been chrome-plated rather than pure chromium itself. Chrome plating is applying a thin layer of chromium onto […]
Properties of Metals Explained: The Complete Guide for Machinists to Select and Process Materials
Chapter 1: Introduction Why I Wrote This Guide on the Properties of Metals When I first started my career in machining, I faced a steep learning curve. Understanding the properties of metals was crucial, yet surprisingly difficult. Every machinist I know has struggled at some point to match the right metal to a specific machining […]
Everything You Need to Know About PMMA Material for CNC Machining
Introduction When working in CNC machining, selecting the right material can make or break a project. One material I’ve come to appreciate over the years is PMMA material—better known as acrylic or Plexiglas®. It’s lightweight, optically clear, and incredibly versatile. For CNC work, especially when you need transparency and good aesthetics, PMMA material often becomes the […]
Ultimate Drill Bit Size Chart for CNC Machining: Find the Right Drill Every Time
Introduction When I started working with CNC machines, I quickly learned the importance of having a reliable drill bit size chart at my workstation. CNC machining is all about precision. Even a tiny mistake, like selecting the wrong drill bit size, can result in wasted materials, extra costs, or worst-case scenario—ruined parts. So, why is a drill […]
Thinking of Using Satin Anodized Aluminum for CNC Parts
What Exactly Is Satin Anodized Aluminum, and Why Might You Choose It? I’ve worked with aluminum in a lot of projects—some industrial, some purely cosmetic. Over time, I’ve come to appreciate just how versatile this material really is. But one finish that continues to stand out for me—both in appearance and performance—is satin anodized aluminum. So […]
Blind Rivet Installation Guide: CNC Drilling, Sizing, and Fixing Tips
Introduction When I first got into mechanical design, blind rivets were just something I saw used on factory floor panels. I didn’t think much of them until a project came along that required joining thin aluminum sheets—no access from the backside, no heat allowed, and the parts had to stay flush. That’s when blind rivets went from […]
Clear Anodized Aluminum Explained: Material Benefits, Use Cases and Buying Tips
Introduction When I first came across clear anodized aluminum, I was designing a custom electronics enclosure for a client in the industrial automation field. They wanted something lightweight, durable, and clean-looking—something that could take a beating in a warehouse but still look sleek on a desk. Clear anodized aluminum checked all the boxes. Over the […]
Plastic Gears Machining Guide: From Material Selection to Precision Cutting
I. Why Machine Plastic Gears Instead of Molding? Plastic gears have become essential in a wide range of industries, from medical devices to automation systems. Traditionally, many of these gears are injection molded, which is cost-effective for high volumes. But over the years, I’ve worked with more and more clients who require small batches, one-off […]