H7 and g6 Fits: How Hole and Shaft Tolerances Work
A simple explanation of H7, g6, clearance, transition and interference fits for CAD designers.
Design Guide
Design Guide
Surface Finish Symbols Explained for Mechanical Designers
Learn what surface finish callouts mean and when a finer finish is actually worth specifying.
Design Guide
Dimensioning Mechanical Drawings: 12 Mistakes to Avoid
Practical dimensioning habits that make drawings easier to manufacture, inspect and understand.
Design Guide
Position Tolerance Explained With a Simple Hole Pattern
See why a hole can have the right diameter and still be in the wrong place—and how position tolerance helps.
Design Guide
GD&T Basics for Designers: Symbols You Actually Need
A designer-friendly introduction to the GD&T symbols that appear most often on mechanical drawings.
Design Guide
Orthographic Projection Explained: First Angle vs Third Angle
Understand first-angle and third-angle projection by looking at how a real 3D part becomes clear 2D views.
Design Guide
How to Read Engineering Drawings Without Getting Lost
A practical guide to reading a drawing from the title block to views, dimensions, tolerances and manufacturing notes.
Design Guide
Common CAD Mistakes and How to Avoid Them
Learn common CAD mistakes with practical mechanical design guidance, examples and engineering tips for CAD designers.
Design Guide
Mechanical Design Review Checklist: 25 Checks Before Release
Learn mechanical design review checklist with practical mechanical design guidance, examples and engineering tips for CAD designers.
Design Guide
Bearing Types and Applications: Choosing the Right Bearing
Learn bearing types and applications with practical mechanical design guidance, examples and engineering tips for CAD designers.