Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Y14.5 Basic Dimension & feature control frames

Y14.5 Basic Dimension & feature control frames

Y14.5 Basic Dimension & feature control frames


I have possibly a very simple question that may be a "noob" question as well. This has been bothering me for the last day and i figured i will throw it out into this forum to see what responses i get. So i was creating a drawing that has positional values and profile callouts. Then it dawned on me why would i need basic dimensions? as long as i have my datums properly called out why would they need basic dimensions? I do not expect for this part to be inspected using surface plate methods, i want this part scanned & probed via PCMM. Now if i were to release this drawing will i be complying to Y14.5 requirements? or will i be violating the GD&T laws? I am curious to see what responses i will get.

Thank you in advance.

RE: Y14.5 Basic Dimension & feature control frames

Is this a CAD model? Is it noted on the drawing that the model takes precedence?
When complete product definition is not contained on the drawing, or not contained in the model, there shall be a note indicating such.
This is not a requirement of ASME Y14.5 but is a requirement of ASME Y14.41, DIGITAL PRODUCT DEFINITION DATA PRACTICES.

edit: I wanted to bring to your attention that these standards are no longer controlled by ANSI, but by ASME.

"Know the rules well, so you can break them effectively."
-Dalai Lama XIV

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close