×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

GD & T Questions

GD & T Questions

GD & T Questions

(OP)
Our company is training for GD & T, and I have a couple of questions for all you gurus out there.
1)What is the correct interpretation of an area indicated by section lines inside the phantom line?
2)Which symbol should be used to express coplanarity of two or more features?
3) Can anybody refer us to a pocket-sized reference guide for use on the production floor?
Thanks in advance for any guidance offered.

RE: GD & T Questions

1) Not sure of the question

2) If all surfaces are co-planar, you could label all of them as the same datum plane (or you could use parallelism)

3) Lowell Foster wrote a pocket size reference booklet, but I'm not sure where you could get it from.

You could post this question in the GD&T forum and get more of a resonse.

RE: GD & T Questions

The grammar forum probably isn't the best place to post this question.  Try the Drafting Standards and GD&T Forum under Engineering Methods.  

RE: GD & T Questions

I give.... what is GD&T?

RE: GD & T Questions

ChrisConley,

   GD&T = Geometric Dimensioning & Tolerancing

                    JHG

RE: GD & T Questions

ewh:  To be co-planar requires parallelism but parallel planes are not necessarily co-planar.

On the other hand, your suggestion:

"you could label all of them as the same datum plane"

would make sense.

Karman303:  I recently took a course in GD&T where they provided us with a pocket guide.  Monday at work I will get the info to obtain copies.  Probably you will already have the info from the GD&T forum by then but that is OK too.

Your first question has my head spinning.  I trust you will make it more clear when you post it on the GD&T forum.

RE: GD & T Questions

The concensus in the GD&T forum seems to be to use profile tolerancing, with documentation noted supporting this.

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!


Resources