# Convert NurbSurface to surface input in Wall.ByFace **URL:** \ **Category:** Geometry\ **Tags:** clockwork, archi-lab, dynamo\ **Created:** [June 5, 2018, 6:12pm UTC](https://forum.dynamobim.com/t/convert-nurbsurface-to-surface-input-in-wall-byface/22524 "2018-06-05T18:12:58Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![daniel\_nielsen](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/daniel_nielsen/32/25132_2.png) [@daniel\_nielsen](https://forum.dynamobim.com/u/daniel_nielsen)\ **Post date:** [June 5, 2018, 6:12pm UTC](https://forum.dynamobim.com/t/convert-nurbsurface-to-surface-input-in-wall-byface/22524/1 "2018-06-05T18:12:58Z")
I am trying to setup a workflow between GH and DY/RVT where I what to place RVT Walls with the Wall.ByFace node. It seems the node do not like nurbsSurfaces. If so how can I convert nurbs to something useful? Or is because the Wall.ByFace only like faces from Revit? I read that in a old post from 2015 where Wall.ByFace was build by Andreas Dieckmann/Clockwork. ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/9/0/9058a1ea629acd0c84bc6bb039c82f42e1955b65.png) ---
**Author:** ![Marcel\_Rijsmus](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/marcel_rijsmus/32/8539_2.png) [@Marcel\_Rijsmus](https://forum.dynamobim.com/u/Marcel_Rijsmus)\ **Post date:** [June 5, 2018, 7:08pm UTC](https://forum.dynamobim.com/t/convert-nurbsurface-to-surface-input-in-wall-byface/22524/2 "2018-06-05T19:08:06Z")
try lacing, set it to longest on the wall by face node, right click it, lacing, longest ---
**Author:** ![daniel\_nielsen](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/daniel_nielsen/32/25132_2.png) [@daniel\_nielsen](https://forum.dynamobim.com/u/daniel_nielsen)\ **Post date:** [June 5, 2018, 7:12pm UTC](https://forum.dynamobim.com/t/convert-nurbsurface-to-surface-input-in-wall-byface/22524/3 "2018-06-05T19:12:44Z")
Just tried. Still no wall created ☹ ---
**Author:** ![Marcel\_Rijsmus](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/marcel_rijsmus/32/8539_2.png) [@Marcel\_Rijsmus](https://forum.dynamobim.com/u/Marcel_Rijsmus)\ **Post date:** [June 5, 2018, 7:26pm UTC](https://forum.dynamobim.com/t/convert-nurbsurface-to-surface-input-in-wall-byface/22524/4 "2018-06-05T19:26:25Z")
@daniel_nielsen are you experimenting on this in the family environment or the project environment I don’t see any faces in the preview btw…or they are very short (low) ---
**Author:** ![daniel\_nielsen](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/daniel_nielsen/32/25132_2.png) [@daniel\_nielsen](https://forum.dynamobim.com/u/daniel_nielsen)\ **Post date:** [June 5, 2018, 7:32pm UTC](https://forum.dynamobim.com/t/convert-nurbsurface-to-surface-input-in-wall-byface/22524/5 "2018-06-05T19:32:01Z")
It is in the project environment. And I can see the Surface in Dynamo. I have also tried place walls by curve and that works fine. That is what you see ind the background. And that node needs more input that I maybe do not have from Rhino/Grasshopper. ---
**Author:** ![Marcel\_Rijsmus](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/marcel_rijsmus/32/8539_2.png) [@Marcel\_Rijsmus](https://forum.dynamobim.com/u/Marcel_Rijsmus)\ **Post date:** [June 5, 2018, 7:34pm UTC](https://forum.dynamobim.com/t/convert-nurbsurface-to-surface-input-in-wall-byface/22524/6 "2018-06-05T19:34:59Z")
it’s just me, but i would try creating a new conceptual mass, import the geometry, place it in the model, use wall by face from there. that way you can update your conceptual mass and update the wall ---
**Author:** ![daniel\_nielsen](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/daniel_nielsen/32/25132_2.png) [@daniel\_nielsen](https://forum.dynamobim.com/u/daniel_nielsen)\ **Post date:** [June 5, 2018, 8:06pm UTC](https://forum.dynamobim.com/t/convert-nurbsurface-to-surface-input-in-wall-byface/22524/7 "2018-06-05T20:06:49Z")
It is a possible method, but I am searching for a more integrated and automated workflow between Rvt/DY and Rhino/GH. ---
**Author:** ![jacob.small](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/jacob.small/32/161030_2.png) [@jacob.small](https://forum.dynamobim.com/u/jacob.small)\ **Post date:** [June 6, 2018, 2:28am UTC](https://forum.dynamobim.com/t/convert-nurbsurface-to-surface-input-in-wall-byface/22524/8 "2018-06-06T02:28:44Z")
I don’t believe you can make a Revit Wall By Fave without a Revit Face (not a Dynamo surface). As such you may need to develop a workflow along the lines of this: - Read Rhino surfaces. - Create conceptual mass family from Rhino surfaces. - Get Revit faces from the new mass family. - Create walls by faces. Cant say I’ve tried it myself and it may be a dead end, but that would resolve your issue, and a revision to that mass family would also update the new wall element, instead of creating a ‘redo from scratch each time you run’ situation where you would lose overrides, annotations, and constraints.