Roof penetration lines not showing in 3d or Elevation Views

[ADT267]

A chimney structure cutting through a pitched roof. Lines missing from the views. I've tried a number of things including, cutting a shaft through the roof, creating an opening in the roof, joining and cutting the elements, changing course, detail views etc..... the red lines marked here seem to be invisible!!!!!

Why would this be happening? Any ideas would be much appreciated

[ennujozlagam]

try to change setting of your detail level and visual styles and see if helps. thanks

[barthbradley]

Post the file.  We'll tell you what's going on with it. 

[Jamhmer_Oc]

Hi @ADT267 Try

2. Select line type.

3. Then you select the edge you want to show.

[martijn_pater]

Just draw it in the sketch, no slopes defined, you can use pick lines on the chimney edges.

[barthbradley · Accepted solution]

I'm not clear why the opening edges are not showing if you placed a shaft through the Roof like you said you did.  Also, have you tried using the Join Geometry  tool to joint the two geometries together?  

[lim.wendy]

Hi @ADT267,

Thanks for reaching out to the forum. Have you had a chance to look over the suggestions provided by our experts?
Do you have any questions about it, let us know if you require further assistance.

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[ADT267]

Thanks, your sketch was enough to show my problem (stupidity). I forgot to set the base/height of the cut. Doh!!!!

There's an old saying.... cant see the woods for the trees!!! So busy trying to set view settings, never thought to check the actual cut.