Import DWG causing crash

I am having difficulty importing the attached file to SU. I don’t usually have any problem and this is a UK Ordnance Survey drawing that should be completely kosher. However, there is a warning immediately after import. When I dismiss it, I see the imported drawing briefly and then SU immediately falls over. Can anyone think of a workaround? I do have to get this drawing into SU somehow.

07 Bacton-Manor-Church-Road-Bacton-Suffolk-IP14-4LJ.dwg (159.5 KB)

Try un-checking “preserve drawing origin” in the import options. The drawing is a long way from the origin. But, it comes in fine for me both ways. I could just pop you a SKP if it doesn’t work for you.

When I import it [not preserving the CAD origin] it works fine for me.
Here’s the SKP.
Bacton-Manor-Church-Road-Bacton-Suffolk-IP14-4LJ.skp (367.0 KB)

This is how the settings look for me but it still crashes every time. I see TIG has uploaded a file so I will try using that.

  1. Backsaved the DWG you shared to R12 ASCII DXF
  2. Imported the DXF in CadStd
  3. Exported a DXF with all layer attributes from CadStd
    (CadStd can export text and dimensions as geometry)
  4. Imported the DXF into SU
    (Notice nothing was simplified or ignored)

Import%20Results%20Layers

  1. Made all geometry on each layer a Component.
    (15 Layers … 15 Components … one imported layer was empty)

The text didn’t scale with the drawing. It’s there, but tiny.

Bacton_001.skp (1.8 MB)

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Empty by name?
On Mac, layers with no characters in .dwg will result in a crash upon import…

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The DXF export settings in CadStd where set to: ‘Export all visible layers’
Thus, all 16 Layers came into SU, because there are only 16 layers in CadStd, including Layer0

No, it had a name, just a number actually, there is no means to ‘name’ layers in CadStd.
But there was nothing assigned to that layer.
Before posting the model I did a little renaming of the layers in SU to restore order.


The simple layer manager in CadStd

CadStd%20Layer%20Manager