Quadrilateral mesh generation of a volume

Dear all,

I looking for a way to mesh a volume (let's say a cube 1x1x1m) and get all meshed components in a list (lets say little cubes of 1x1x1cm). Of course I am not interested in primitive geometries like cubes. I intend to continue with the "little cubes" in finite element analysis.

I thought of using some external mesh generating software, but then importing the meshed geometry back into rhino, I guess it is going to be unified or re-meshed or whatever.

Do you have any suggestions?

Thanks in advance

Replies to This Discussion

Permalink Reply by peter fotiadis on March 10, 2015 at 4:33am

hmm ...

... if we forget "some" MIA stuff (and "some" invalid (but why??)) meshes ... this "works"(?): I mean it could work, he he.

back to the drawing board.

Permalink Reply by Daniel Piker on March 10, 2015 at 4:42am

It sounds like you are looking for volumetric meshing, and more specifically hexahedral meshes. Searching for these terms will turn up lots of results.

For instance:

http://www.itascacg.com/software/kubrix-blockranger

https://www.rhino3d.com/resources/?id=75

http://www.meshgems.com/volume-meshing-meshgems-hexa.html

https://cubit.sandia.gov/

...

Permalink Reply by peter fotiadis on March 10, 2015 at 12:20pm

Daniel,

A quick Q: are you aware for "omissions" when splitting a mesh against an enumerable collection of (planar) meshes? Kinda like this (the left top "protrusion" is MIA):

the odd thing is that this doesn't happen in some occasions (shown a differently oriented Box that defines the "slice" Planes/Planar Meshes):

best, Peter

Permalink Reply by peter fotiadis on March 10, 2015 at 12:32pm

Appears to me like a Rhino bug that one: Using solely GH components

the test mesh:

the missing left top "piece":

Permalink Reply by peter fotiadis on March 10, 2015 at 12:52pm

On the other hand when the "skin" is constantly convex meaning that this ... m.ExplodeAtUnweldedEdges() ... is not called on duty > no omissions of any kind occur:

Permalink Reply by radia sl on July 26, 2019 at 12:51pm

Hi Peter

I have a mesh that i wanna send to 3d printing , the problem is that my mesh is too big for the 3d printing , i was having a look to your tutorial and i am not able to split it

thanks