Chamfer on window opening

[arcsurvey]

Work in progress: How do I create a chamfered reveal where the red lines are? I am using Revit LT 2017 so I do not have an in place void tool. I need to create the chamfer in the family. When I have tried a void sweep it will not allow a void in the host wall of the opening.

Any ideas to help me out?

Thanks.

[ToanDN]

Remove the opening cut and use void(s) to cut the wall.

[arcsurvey]

Thanks. I will try that tomorrow.

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[arcsurvey]

Hi, I've cut the holes through the wall using a void extrusion which worked for the main void. Then I tried to do the chamfer as a void sweep. I get this error as soon as the two voids touch / overlap. I also tried doing it as two void sweeps and I get the same error. Can anyone tell me what I'm doing wrong?

Thanks.

[loboarch]

Just looking at the geometry you might be getting the error because the void is "self intersecting" at the point. I am not sure without seeing the family for myself, but tight corners like that sometimes cause the self intersecting situation. 

Could you maybe make the chamfer shape as a void blend instead of a sweep? If there is a self intersecting problem with the sweep the blend would avoid that issue.

[arcsurvey]

Thanks Jeff,

I tried as you suggested. The void blend works for the chamfer until you try and join / align the void blend and void extrusion to make the void complete through the wall.

As soon as they touch, I get the message shown below. When separated both voids form correctly.

Thanks, Richard.

[ToanDN]

Create a single void sweep blend with 3 profiles.

[arcsurvey · Accepted solution]

Thanks. I'm not sure how to do this. I only have the option to do a single swept blend with 2 profiles, not three, unless I misunderstood.

However, you got me thinking. I tried a swept blend for the chamfer and a sweep for the main opening and this combination did work without an issue.

Thanks for your help.

[ToanDN]

@arcsurvey

You are correct.  I was thinking multiple profiles along the sweep path similar to what you could do with a conceptual mass but it wasn't the case.  Glad you figured it out.