# Issues passing solid geometry between Dynamo and C3D document **URL:** \ **Category:** Civil 3D\ **Created:** [May 4, 2020, 2:39pm UTC](https://forum.dynamobim.com/t/issues-passing-solid-geometry-between-dynamo-and-c3d-document/50199 "2020-05-04T14:39:11Z")\ **Posts on this page:** 1\ **Showing post:** 16
**Author:** ![kasra\_valadi](https://avatars.discourse-cdn.com/v4/letter/k/7993a0/32.png) [@kasra\_valadi](https://forum.dynamobim.com/u/kasra_valadi)\ **Post date:** [March 1, 2024, 2:41pm UTC](https://forum.dynamobim.com/t/issues-passing-solid-geometry-between-dynamo-and-c3d-document/50199/16 "2024-03-01T14:41:40Z")
Hello Patrick, many thanks for your recommendation. I just posted a new topic now: > [@Object.ByGeometry returns null for any scripts on Civil 3D](https://forum.dynamobim.com/t/object-bygeometry-returns-null-for-any-scripts-on-civil-3d/98659): > > Hello everyone, I’m working on some Dynamo scripts that ultimately aim to create 3D objects in a DWG file in Civil 3D. At first, the script was working properly until a slight change, for example in the rotation of the objects, slowed down the software processing, and after half an hour I had to close the software using the task manager. When I opened the software again and tried to run the script again with the settings that were executed correctly, this time Object.ByGeometry returned null. T… --- _[View the full topic](https://forum.dynamobim.com/t/issues-passing-solid-geometry-between-dynamo-and-c3d-document/50199)._