Auto convert quirk with dxf underlay

[Scott]

Importing a dxf from Revit into THERM using auto-convert and having issues. The polylines created in Revit convert to a warped triangle when put into therm.  See screen shot.  Any thoughts on what I am doing wrong?  Thank  you.

Scott

[Robin Mitchell]

I'm not sure this is the issue but you might read this KB article

https://windows.lbl.gov/underlays-autocad-versions-2000-and-newer

On Wed, Oct 15, 2025 at 1:44 PM Scott <ecoma...@gmail.com> wrote:

Importing a dxf from Revit into THERM using auto-convert and having issues. The polylines created in Revit convert to a warped triangle when put into therm.  See screen shot.  Any thoughts on what I am doing wrong?  Thank  you.

Scott

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Robin Mitchell

Building Technology and Urban Systems Division
Energy Technologies Area
Lawrence Berkeley National Laboratory

[Zugur Rakhmanov]

Hi Scott,

The Therm imports correctly the dxf files those are saved in the R12/LT2 version.

Try to resave your underlay file in this version import that in the Therm again.

If you can't just provide it. I will resave it and send you back

Kind regards,

Zugur

To view this discussion visit https://groups.google.com/d/msgid/LBNL-THERM/CACF39SvSBn9Sj%3Dvx2j9%3DKQDt7mKdU7JPhajgX1CcY8E28nuoZA%40mail.gmail.com.

[Scott Witt]

Thanks so much for the help.  Attached is the dxf exported from revit.   Every option I use just won't bring the dxf into THERM with polylines.  

Scott

[Zugur Rakhmanov]

Scott,

You can download the resaved dxf below.

Kind regards,

Zugur