Wall Intersections Help

[TommyJ]

I'm trying to draw 2 different foundation walls in a 'T' shape. The bottom of the T shape is concrete, the top is CMU. How do I stop the top part of the 'T' from snapping together? I'd like the concrete wall to extend to the top of the T and split the CMU wall into 2 pieces. 

I've tried the 'edit wall intersections'

 

x12- CA

[glennw]

This is a bit messy, but .....

Make the top side of the cmu wall the Main Layer Outside.

Break the cmu wall in the centre of the concrete wall.

Place a cad line either side of the concrete wall where it passes through the cmu wall.

 

 

 

[mthd97]

1 hour ago, glennw said:

This is a bit messy, but .....

Make the top side of the cmu wall the Main Layer Outside.

Break the cmu wall in the centre of the concrete wall.

Place a cad line either side of the concrete wall where it passes through the cmu wall.

 

 

 

Well done Glenn and not too messy either. You have lots of great tips & tricks to share with us to get Chief to behave correctly.

 

[JKEdmo]

2 hours ago, glennw said:

Place a cad line either side of the concrete wall where it passes through the cmu wall.

 

Hi Glenn,

 

Just curious - does a cad line act as a "stop" for a wall?  Is that a method to control wall cleanup?

 

Thanks,

 

Jim

 

[glennw]

3 hours ago, JKEdmo said:

Just curious - does a cad line act as a "stop" for a wall?  Is that a method to control wall cleanup?

Yes, walls will Intesection Snap to cad lines - but that is not what the cad lines are doing in my example.

Draw my example and you will see that there are no wall definition lines where the concrete wall passes through the cmu wall.

So the cad lines are not 100% required for 3D - they are only usd for 2D tidying up and defining the walls a bit better.

[JKEdmo]

15 hours ago, glennw said:

Yes, walls will Intesection Snap to cad lines

Thanks again for your input and help.

 

Jim

 

[TommyJ]

On 5/19/2023 at 6:38 PM, glennw said:

This is a bit messy, but .....

Make the top side of the cmu wall the Main Layer Outside.

Break the cmu wall in the centre of the concrete wall.

Place a cad line either side of the concrete wall where it passes through the cmu wall.

 

 

 

 

No matter what I do, I can't get the concrete wall to snap to the top of the cmu wall. It always just comes back down to the bottom. I've flipped the wall both ways and tried.

If I break the cmu wall in the center and then drag the concrete wall up, it goes as far as snapping the concrete back down and reconnecting the cmu wall. 

I've currently just have the concrete wall and footer drawn with cad lines completely. I had to hide the cmu footer with a white box. I like this program, but sometimes it drives me bananas.

[glennw]

Tommy,

Sorry, I think I omitted a step (or two).

Select the concrete wall and check wether the start or end of the wall is butting up against the cmu wall (start and end indicators).

In the Wall Specification dbx, check Through Wall At End or Start.

Or...just check both.

Oh, and also uncheck Auto Merge Collinear Walls in General Walls Defaults.

Sometimes it is hard to remember all the various settings when working through something like this.

 

[TommyJ]

16 hours ago, glennw said:

 

Oh, and also uncheck Auto Merge Collinear Walls in General Walls Defaults.

 

 

 

I'm using x12. That was listed on x14 as a new feature. That's probably why it works for you and not me.

[glennw]

OK, still doable - just a different technique.

 

Select the cmu wall and break it over the centre of the concrete wall.

 

Select the concrete wall.

Select Edit Wall Layer Intersections from the Edit menu.

You will see a red grip on the intersection of the centre of the concrete wall and the lower edge of the cmu wall.

 

Drag the grip up to the topside of the cmu wall.

 

Then you can draw the 2 concrete wall edge lines if required.

 

 

 

 

[Chrisb222]

10 hours ago, TommyJ said:

I'm using x12.

 

Another option in X12 is to create a new CMU wall type. Here I just copied the standard 7-5/8" wall and added a 0-thickness air gap layer. Then break the CMU wall at the intersection, and make one side of it the new wall type and they won't rejoin. That could potentially complicate your material list, and you still need to add the CAD lines: