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SebastianM

Lattice Structures Export

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I would like to export the lattice structures generated by optistruct into a 3d printable format. Ive seen a few posts about this in the past and there didn't seem to be a way other than using an additional program like 3matic, so I was just wondering if this is still the case?

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I believe that there is a tcl script in the file exchange that can create cylinders from the tapered 1d elements. From there you can export the cylinders as stl objects and then use another software to merge them all together (meshmixer). Another method that might work is by using Altair Inspire to automatically generate the stl file with the lattice beams. 

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Thanks a lot for the reply etrud! Exporting via inspire did not work sadly..

I´m not very experienced with tcl scripts, could you maybe tell me more about how that could work?

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Your welcome Sebastien, 

 

The tcl script I was referring to does not seem to be in the file exchange unfortunately. However extracting the tapered beams should be relatively straighforward.  

Basically, for each tapered beam or element with card image PBEAML, get the dimensions of both radii. From there you create a solid cone using the coordinates of nodes associated with the beams. Continue until all the beams have been selected. Then when all the cones are created, mesh the exterior with trias and then export to stl. The final step is to merge the cones in another software.

If you haven't used tcl before then you should look into the help files to learn more about the hypermesh api. Your commands are also printed out in a 'command.tcl' file during hypermesh sessions. 

 

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Dear there

I have an issue with Inspire, I run lattice optimization but when I tried to import into Ansys for example it shows me only the solid part from my model, it did not show the lattice structure

Any help I would appreciate that

 

Regards,

Mohammed

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