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


Ejector Pin Height

Ejector Pin Height

Ejector Pin Height

I have a call out that states "Ejector pin marks permissible on surf E up to .010 max depth." Now, the ejector pins on the part are range from .001 below the surface to .002 above it. Since it doesn't specifically say flush to .010 below, do I then follow the surface profile as a tolerance?

RE: Ejector Pin Height

I'm confused... are you concerned with marks or the pins themselves?

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

RE: Ejector Pin Height

I'm sorry for the confusion. It should say "the ejector pin marks on the part range from .001 below...." The ejector pins themselves are in the mold, not in the part.

RE: Ejector Pin Height

As written, ejector pin marks "proud" of the surface are not permitted.

More likely, the possibility was not considered the the person that made the drawing.

RE: Ejector Pin Height

There could be good reasons why the marks are not allowed to be proud of the surface. I would have to reject your parts or ask for a deviation and drawing change.


The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

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!


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