×
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

mating information

mating information

mating information

(OP)
i have a quesition concerning mating when mating i noticed that i will occassionally have a <-> sign in front of the part after mating this represents some degree of moment or under defined. i have tried everything to resolve this issue and i cant is there something i am doing wrong, any help would be appreciated.

RE: mating information

Everything in a model does not need to be fully constrained.  If you want everything fully constrained be aware that there is an upper limit for the number of Mates in an Assebly.  I haven't found hard documentation to support this, but others agree, and that limit is roughly 300 Mates.

"Art without engineering is dreaming; Engineering without art is calculating."
Steven K. Roberts, Technomad
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?

RE: mating information

Try dragging the part to see which Degrees of Freedom (DOF) are not being constrained.

Is the first part in the assy Fixed/Fully constrained?

cheers
Helpful SW websites  FAQ559-520
How to get answers to your SW questions  FAQ559-1091

RE: mating information

(OP)
the first part is fixed, i agree that every part does not have to be fully constrained but i have a new engineering manager that disagrees otherwise.

RE: mating information

What version of SW and waht SP do you use? In SW2006 SP0 and SP1 there was a "-" sign in front of fully contrained parts, sometimes. I haven't seen that in the latest SPs.

RE: mating information

(OP)
we are using sw2006 sp3.1

RE: mating information

eddie357,

I got an SPR on that issue when we switched from SW2004 to SW2005.  Parts that were fully defined in SW2004 showed a <-> in SW2005.  The SPR is still open and now in SW2006 I still get parts that show the <-> in a brand new assembly, but by the mates applied they are fully constrained.  Also, you cannot move or rotate the parts at all, but the window doesn't come up saying that they are fully defined like it does for a part without the <->.  I would guess you are dealing with the same bug.

mncad

RE: mating information

We have some excitement in assemblies that have congifurations and under defined mating.  Typically all it takes is to take one of the major planes of the part or subassembly and mate it to a major plne of the associated part or the main assembly.

RE: mating information

(OP)
thank you all for the replies, glad to know i am not alone in 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