Export to Autocad - Crashing in C3D 2019

[MirraLee]

Hi All

I am stumped, I thought it was my workflow and or overtaxing my machine and now I am thinking it might be more and hoping for an easy fix.

I need to Export to Autocad to transfer a Civil 3D topo into Revit and I am running into a critical issue. Critical in that I need to get these done and have sourced out all the workarounds that I know of.

EXPORTTOAUTOCAD is crashing to desktop on all files....

FATAL ERROR: Unhandled Access Violation Reading 0x0210 Exception at A4EA0AFh

I have done what I can to the file so that it only has the topo, point cloud removed, even working on my C drive and a fresh reboot with NO other applications running in the background to troubleshoot potential issues.

I checked for updates - none and will be checking the beta area next!

Is there anyone else getting this and is there a solution?

Thanks in advance 

[Neilw_05]

Export to Autocad has crashed for as long as I have used it (since 2005). If I ignore the crash messages the file gets created just fine. In this case you have to ignore the serious crash message.

There are 3 parts to learning software:

1. What the tools do

2. How to apply them

3. What are the defects

This is fits under part 3.

[Karadzhaian_Eduard]

Hi @MirraLee ,

On the screenshot you used "3D Wireframe" visual style.

Try to set projection "Top" and visual style "2D Wireframe" before export.

Also you can attach drawing for detail research.

[Karadzhaian_Eduard]

In addition try this export type

[Cadguru42]

I have found that if you have Include sheets checked that the Export C3D Drawing command will crash with a fatal error every time. Make sure that is not checked and that the format you want is one version older than the one you really want. That's yet another bug that Autodesk has not fixed in many versions.

[tcorey]

Try CIVILBATCHCONVERTER command.

[MirraLee]

Hi

I thought of that, there still is no file created, and even searched the hard drive.

Mirra

[MirraLee]

Hi

I thought this was it, and I tried those changes and still no success. 

Thanks 

[MirraLee]

Hi

This file only contains a tin file, no sheets are included in it.

Thanks 

[Neilw_05]

Well in your case it really is crashing.

[user181]

Have you tried using DWG TrueView and do a dwg convert and modify the conversion setup file format to explode AEC objects?

[samir_rezk]

Hi @MirraLee 

try save as your drawing in .dxf format, then just open the dxf and save as .dwg it should be all in plain AutoCAD now.

hope this helps a little,

[MirraLee]

Hi

Works but for I need to link said Tin into Revit and create a surface, and dxf removes too many properties that are required.

Sigh, came so close! I have 13 topo files to bring into Revit..... and only 1 day to do it now.

I have attached the files for anyone to EXPORTTOAUTOCAD below - Good Luck!

https://drive.google.com/open?id=1_StyMnL_XvM1Sx4A-Ku8yEWLulo8xtpB

🙂

[samir_rezk]

Hi,
I am not able to test you drawing right now, but I am pretty sure if you set your surface style to show TIN lines prior to saving as dxf then it will retain the TIN lines in your drawing as simple AutoCAD lines, you will then be able to use these TIN lines in Revit to create a topography. It’s a bit of workaround!

You could also export your surface to LandXML (just right click on the surface name in tool space), the disadvantage of this is that sometimes when you create a topography from LandXML it doesn’t produce an exact replica of the TIN in Revit.

If you have BIM 360, and Civil 3D 2019.2 you could opt to publish the surface (on the collaboration ribbon tab) then you can simply link to it in Revit

Hope this gets you closer to a solution,