Forums >> Revit Systems >> Technical Support >> Converting AutoCAD ACIS Objects (3D Solid) to Polymesh Objects

SD Binc

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Joined: Thu, Dec 9, 2004
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I get an Warning when trying to import a 3D AutoCAD file into Revit as follows -

"Warning:

Some ACIS Objects could not be imported. To import them, use AutoCAD to convert them to Polymesh Objects and then reimport."

Question -  What command do I use in AutoCAD to convert the ACIS Objects (3D Solid) to Polymesh Objects so they will import and display in a Revit Model?

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Typhoon

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Joined: Tue, May 22, 2007
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Try this LISP routine.

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I Hope and I Wish to LEARN  more, and more, and more.... REVIT

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JPrior

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Joined: Wed, Aug 26, 2009
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I'm getting the same error as SD Binc. 

I loaded this lisp but it is Poly mesh to 3D Solid only. Do you have one that will changes a 3D solid to Poly Mesh?

Thanks

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JPrior

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Joined: Wed, Aug 26, 2009
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warning attached

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Typhoon

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Check here: http://www.accustudio.com/index.php?option=com_content&view=article&id=48:freeware&catid=34:marketplace&Itemid=58

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I Hope and I Wish to LEARN  more, and more, and more.... REVIT

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fonziesponzie

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Anyone came up with solution for this ?

having the same problem and dont quite feel like redrawing the whole model in revit

there must be a way, right ?

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JetLee

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Joined: Thu, May 8, 2008
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We only draw in ACIS Objects. I've never 'converted'  the objects to polyface mesh to import to Revit MEP. Usually, I select all and do one round of Explode, save as a new file, then link/import that into Revit.

You can also import that .dwg into a Revit family, insert the family into your project, then you can do interference checking as well. We do this quite often with 3d-dwg's from other consultants who export from more specialized programs (Civil, Structural, Fire Protection, etc.) to coordinate our piping, plumbing and hvac.

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NAMECIB7610

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Joined: Fri, Apr 29, 2011
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Hi Everyone,

Just joined RevitCity, first responce to a question.

If you are using AutoCAD 2006-2009, do the following to change solid to mesh:

1) Explode solid.

2) Type 3DSOUT and pick location.

3) Type 3DSIN and re-import solid, that's it.

If you are using AutoCAD 2011-2012, do the following to change solid to mesh:

1) Explode 3D solid which converts it to Regions.

2) Type CONVTOMESH, select Region objects, and that's it.

If none of the above works, send me your file and I will see what I can do.

Hope that helps,

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edphang

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did someone already got answers on this....?

@NAMECIB7610, will it be ok if i send you my file to convert it into a workable revit file.

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jcprins

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I've got the same problem. In this dwg-file, there are 2 3d Solids. When I import them into Revit 2012, I get just faces.

I want to have a 3D geometry so I can add patterns when I cut this object.

Is this possible, without redrawing it?

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RyanJavlyn

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Joined: Wed, Jun 27, 2012
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I was able to overcome this issue by converting the .sat file to a .dxf file using AutoCAD and then importing the dxf file into REvit.

See my post on this thread for details... http://www.revitcity.com/forums.php?action=viewthread&thread_id=21421

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