topic Re: Importing CAD topography to Revit problems in Revit Architecture Forum

Importing CAD topography to Revit problems

Anonymous — Mon, 07 Sep 2020 20:58:43 GMT

I am having problems importing CAD file site survey from surveyor to revit. When I import it is splitting into for little squiggle lines. Looks to me like a scale problem. I am importing in metres to 1/500 site.

Re: Importing CAD topography to Revit problems

barthbradley — Mon, 07 Sep 2020 21:40:28 GMT

How far away from the internal origin does it insert? I'll bet it is far, far away. Revit has a limit. 10 miles.

https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/CloudHelp/cloudhelp/2018/ENU/Revit-Model/files/GUID-3F79BF5A-F051-49F3-951E-D3E86F51BECC-htm.html

Post the DWG.

Re: Importing CAD topography to Revit problems

Anonymous — Mon, 07 Sep 2020 22:27:41 GMT

Here is the DWG. I am new to revit.

Thanks for your help.

Bryce

Re: Importing CAD topography to Revit problems

barthbradley — Mon, 07 Sep 2020 22:50:02 GMT

The DWG inserts far away from the Internal Origin of the Project. You need to move it closer to the IO. Insert it into a 3D with the Internal Origin Visible in the View, and then select it, Unpin it, and move it to the Internal Origin.

TIP: Set the Import Units yourself. Do not use Auto-Detect.

Re: Importing CAD topography to Revit problems

barthbradley — Mon, 07 Sep 2020 23:29:29 GMT

NOTE: your DWG is not to scale. You will need to scale it in Revit, once you move it close to the Internal Origin.

One more thing I'll mention since you are new to Revit...Everything in Revit Model Views are 1:1 scale.

Re: Importing CAD topography to Revit problems

barthbradley — Mon, 07 Sep 2020 23:35:32 GMT

View Scale affects Annotation size in the View, and the size of the overall View on the Sheet.