Blueprint Reading Guide


Whether you’re new to machining, want to figure out that never before seen drawing symbol, or simply need a refresher, this is your home to learn more about engineering drawings and blueprints for machining.

Learn to Read Blueprints


a blueprint icon on a blue background

There’s no better way to start learning about blueprints. Level up your knowledge of drawing symbols and notes.

GD&T Symbol Guide


True Position Blueprint GD&T Symbol target

Check out our complete guide to GD&T symbols with tips to help you read and understand your manufacturing blueprints.

Explore More Blueprint Reading Topics


Datums


Datum Blueprint GD&T Symbol a in a box with arrow

Find out how to use datums and where they fit into your measurement.

Basic Dimensions


Basic Dimension Blueprint GD&T Symbol dimension in a box

Learn how to work with basic dimensions in our guide.

Blueprint Symbols


Depth Blueprint GD&T Symbol line with arrow pointing down

Includes all symbols per ASME Y14.5 and info on lesser-known legacy blueprint symbols.

Tolerance Types


an icon with a plus or minus symbol

An introduction to the different types of blueprint tolerances with lots of examples.

Blueprint Notes


Surface Finish Blueprint GD&T Symbol check mark

Say what?! Learn the language of engineering drawings and machining blueprints. 

Hole Features


Counterbore Blueprint GD&T Symbol u shape

Our guide to holes of all types and the most common blueprint callouts associated with them.

Additional Blueprint Reading Resources


Talk Like A Machinist


an icon of two people talking

Learn to speak like a machinist and work with the numbers and values you will find on engineering blueprints. A practical guide with plenty of examples to help you learn.

GD&T Symbols Chart


Spotface Blueprint GD&T Symbol SF in a u

A simple guide to get you started reading blueprint symbols with all the most commons symbols included.

GD&T Keyboard Shortcuts


keyboard keys wasd on a blue background

A guide to all of the keyboard shortcuts for inserting each blueprint symbol into your document.