CNC Machining Blog: Materials, Design, Cost, Quality & Process Guides

CNC Knowledge Hub

CNC Machining Blog Organized by Buyer Questions

Use these categories to find practical articles about CNC materials, surface finishes, machining processes, design for manufacturability, quoting, quality control, and industry applications. The blog is structured for engineers and sourcing teams who need clear answers before ordering custom CNC parts.

CNC milling service CNC turning service rapid prototyping surface finishing options inspection and quality request a quote

MMaterial GuidesCompare aluminum, stainless steel, brass, copper, titanium, plastics, and specialty alloys for CNC parts.58 articles FSurface FinishingChoose anodizing, plating, polishing, coating, heat treatment, and other post-machining finishes.63 articles TMachines, Tools & ProgrammingLearn about CNC machines, operations, tooling, drilling, tapping, reaming, CAM, and shop-floor setup.39 articles CDesign, Cost & SourcingReduce machining cost, prepare RFQs, improve DFM, control lead time, and choose the right CNC supplier.24 articles VProcess ComparisonsCompare CNC machining with casting, forging, 3D printing, fabrication, laser cutting, injection molding, and more.17 articles QQuality & TolerancesUnderstand tolerances, inspection, surface roughness, accuracy, quality control, and measurement planning.15 articles BCNC Machining BasicsFoundational explanations for CNC machining, subtractive manufacturing, process steps, and common terms.22 articles AMilling & TurningGuides for CNC milling, turning, lathe work, Swiss machining, mill-turn, and multi-axis machining.9 articles IIndustries & ApplicationsExplore CNC machining use cases for aerospace, medical, automotive, robotics, automation, and electronics.8 articles

Inspector checking a bent stainless steel mounting bracket against an industrial rail assembly

Sheet Metal Bracket Design: Bends, Loads, Holes, and Assembly Fit

Design reliable sheet metal brackets with suitable...

Aluminum backed LED circuit board being fitted to a finned machined heat sink on an electronics bench

Metal Core PCB Design: Thermal Paths and Heat Sink Integration

Specify a metal core PCB with dielectric thermal resistance,...

Investment cast small steel component beside a larger sand cast housing and foundry mold samples

Investment Casting vs Sand Casting: A Finished-Part Selection Guide

Choose investment or sand casting by geometry, alloy,...

Polymer assembly nest with steel locating pins and aluminum base holding a machined housing

3D Printed Tooling: Choosing Printed, Machined, or Hybrid Fixtures

Compare printed, CNC machined, and hybrid fixtures...

Engineer inspecting FR4 PCB laminate samples and a fitted circuit board beside a machined aluminum enclosure

FR4 PCB Material: Specifications, Grades, and Enclosure Design

Specify FR4 PCB material correctly using Tg, Td, CTE,...

Progressive die stamping press producing connected steel brackets with inspection tools nearby

Progressive Die Stamping: How to Know If It Fits Your Part

2026-09-10

Learn when progressive die stamping fits a part based on volume, strip layout, material,...

Technician reviewing short-run molded housings beside an aluminum prototype mold insert

Low-Volume Injection Molding Companies: How to Choose a Fast, Reliable Supplier

2026-09-10

Choose low-volume injection molding companies by tooling strategy, material, DFM,...

Product designer comparing an AI enclosure render with a physical CNC-machined aluminum prototype

AI Product Rendering Tools for Designers: A Practical 2026 Workflow

2026-09-10

Learn how to use AI product rendering tools for concept development while keeping...

Workshop comparison of TIG welding, copper brazing, and electrical soldering

Brazing vs Welding vs Soldering: Key Differences for Metal Assemblies

2026-09-10

Compare brazing, welding, and soldering by temperature, strength, distortion, materials,...

Dark MJF nylon parts and natural SLS nylon parts compared on an additive manufacturing workbench

MJF vs SLS: Choosing the Right Nylon 3D Printing Process for Functional Parts

2026-09-09

Compare MJF vs SLS for nylon prototypes and production parts by strength, finish,...

Metal powder-bed printed lattice bracket beside a CNC-finished precision component in a manufacturing lab

Metal 3D Printing Guide: Processes, Materials, Applications, and CNC Post-Processing

2026-09-09

Compare SLM, DMLS, EBM, binder jetting, and DED metal 3D printing, including materials,...

Quality technician measuring molded plastic parts inside a modern injection molding factory

How to Evaluate Injection Molding Companies in the USA: A 2026 Supplier Guide

2026-09-09

Evaluate US injection molding companies by tooling, engineering, quality, capacity,...

Welder inspecting a welded machined bracket beside an engineering drawing with welding symbols

Welding Symbols Explained: Meaning, Types, and Drawing Notes for Machined Assemblies

2026-09-09

Learn how to read welding symbols, dimensions, contours, arrow-side rules, and AWS...

Casting vs Machining: Process, Cost, Tolerance, and Material Differences - MTSPi CNC

SLA vs DLP Resin 3D Printing: Accuracy, Surface Finish, and Prototype Selection

2026-09-03

Compare SLA and DLP resin 3D printing by curing method, accuracy, surface finish,...

SLA vs FDM 3D Printing: Choosing the Right Prototype Before CNC Machining - MTSPi CNC manufacturing scene

SLA vs FDM 3D Printing: Choosing the Right Prototype Before CNC Machining

2026-09-03

Compare SLA and FDM 3D printing for prototype fit, appearance, strength, finish,...

What Is Welding? Process Basics, Joint Types, and Machined-Part Design Notes - MTSPi CNC manufacturing scene

What Is Welding? Process Basics, Joint Types, and Machined-Part Design Notes

2026-09-03

Learn what welding is, how common welding processes work, and how to design machined...

Aluminum Gravity Casting: Process, Design Rules, and CNC Finishing Options - MTSPi CNC manufacturing scene

Aluminum Gravity Casting: Process, Design Rules, and CNC Finishing Options

2026-09-03

Understand aluminum gravity casting, what design rules matter, and how CNC finishing...

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