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

Modifying base and top on solid geometry for hexmesh

Modifying base and top on solid geometry for hexmesh

Modifying base and top on solid geometry for hexmesh

I have some solid geometry consisting of a number of tapered brick shapes, six sided. The existing top and base are different sizes so I do not want them to have the same number of nodes per side. However the other two pairs of sides can have the same number of nodes per side and would work for hexmeshing the way I would like. I could just redraw them but there are quite a few so it would be easier just to use a command to select the sides that would be better for the top and base. In help there doesn't seem to be a command to do this. Doesn't seem to be any command under modify or geometry.

When the mesh sizes are set manually on the solid, then the hexmesh fails because the top and base do not match.

Any ideas?


RE: Modifying base and top on solid geometry for hexmesh

I am still trying to find an easy way to modify the base and top to a different pair of surfaces. I came across a reply to a different post by Blas Molero that suggested using mesh control, approach on surface, and removing any links or matching between the surfaces that are giving me problems. It did not work for me:

In this model there are 192 solids like this and somehow one of them meshed using the hexmesh solid command and came out with a reasonable mesh:

When you slice a solid for hex meshing, what determines which surfaces become the top and base?
Now that the model is already sliced I hate to start over again. Should I submit a request for a new command?


RE: Modifying base and top on solid geometry for hexmesh

I have resolved the issue. It seems that the order of steps is important. After preparing the geometry and then setting the size on the surface, then go back and ensure all the size along curves are what is desired. Then use the command Mesh Control, Approach on Surface to remove all the slaving by selecting "not specified". Finally go to Geometry, hex mesh solids. Somehow it seemed that if the size along curves was done after slaving was removed, the slaving was reset.

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


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