Dormer Artifact Issues

[kwhitt]

I have two dormers that are identical.  One I was able to pull off perfectly.  The second, although identical, has some artifacts that I cannot identify.  I have checked the walls including attic walls, the roof planes, room moldings, etc. and I cannot find the problem, nor do I even know what those flat boards floating above my roof could possibly be.  Has anyone run into this before and found a solution?  Further, I don’t understand why Chief rebuilds both dormers differently although identical (as far as I can tell).  I can upload the file to Dropbox if anyone has the time to take a look.  Thanks, Kevin

[Doug_N]

 

While the dormers look identical from a plan view it can be seen in this section that they are not.  Look at the details in the wall sections to see what I mean.  Posting the plan file would be a good place to start.  

 

Also here is a short video that I did on dormer artifacts.  They can be tricky. 

 

[kwhitt]

  On 8/14/2022 at 9:52 PM, Doug_N said:

 

While the dormers look identical from a plan view it can be seen in this section that they are not.  Look at the details in the wall sections to see what I mean.  Posting the plan file would be a good place to start.  

 

Also here is a short video that I did on dormer artifacts.  They can be tricky. 

I can see that they're not identical in the cross-section, but all the settings of which I have control are identical.  Not sure what those artifacts are.  Thanks for the video, I'll give it a watch.  Kevin

Expand  

 

[kwhitt]

  On 8/14/2022 at 10:00 PM, solver said:

 

Often you can use Edit Area to cut out the problem part of the plan and make a new plan. Easier on us.

Expand  

Thanks Eric.  The file is only about 39MB and here's the link - 

https://www.dropbox.com/s/6axrhseb634eaax/TEMP.zip?dl=0

 

I'd appreciate you taking a look.  Kevin

[Doug_N]

Here is the solution to your problem.  Click on the dormer wall that has an artifact opening it. Then click on structure and then set height to default.  The artifact will disappear.  

[kwhitt]

  On 8/14/2022 at 10:45 PM, solver said:

Delete the problem dormer and copy the good one over.

 

It's rare that we need a full plan backup. Only when the question concerns materials. Normally a zip of just the plan file works.

 

Expand  

Thanks for taking a look.  That is how I created the 2nd dormer in the first place.

 

[kwhitt]

  On 8/14/2022 at 10:51 PM, Doug_N said:

Here is the solution to your problem.  Click on the dormer wall that has an artifact opening it. Then click on structure and then set height to default.  The artifact will disappear.  

Expand  

Thanks Doug.  That did work for the exterior problems.  Did you notice the wall problems on the interior?  The right dormer when viewed from inside is perfect.  The left, not so much.  Thanks again, Kevin

Edited August 14, 2022 by kwhitt
Added atttachment

[kwhitt]

  On 8/14/2022 at 11:35 PM, solver said:

Copying cleaned up all the problems.

Expand  

Eric - I'm not getting the same result.  Are you copying everything at once including the roof hole or just the walls?  Are you using reflect about or center object?  Thanks.

[kwhitt]

  On 8/15/2022 at 12:31 AM, solver said:

 

Expand  

Thanks Eric.  Really appreciate it!

[Doug_N]

  On 8/14/2022 at 11:06 PM, kwhitt said:

Thanks Doug.  That did work for the exterior problems.  Did you notice the wall problems on the interior?  The right dormer when viewed from inside is perfect.  The left, not so much.  Thanks again, Kevin

Expand  

This problem is the result of two roof openings overlapping.  Delete one of the roof openings and then edit it by stretching to match the correct opening.  The problem inside will correct itself.

[Doug_N]

Just a comment on Eric's fix and my fix.  Eric's copy and reflect clearly fixes the problems from the faulty dormer, and my fix explains what went wrong and how to correct it.  Both methods will work of course and Eric gets to the right result much faster.  My fix teaches you about what went wrong and what to look for in a similar situation.  In production I would definitely use Eric's solution.  

[Kbird1]

  On 8/14/2022 at 11:50 PM, kwhitt said:

Are you using reflect about

Expand  

 

I find Reflect About ( CAD LINE usually )  works well when CA has this Issue, starting with the Roof Hole, then Walls, Roof Planes etc...

 

The original pics makes it look like a Ceiling plane height issue , and I have seen similar in the past.... for some reason multiple Dormers seems to Trip CA up at times and I have started using Reflect About from the get go for more consistent  result.

 

Mick.

[kwhitt]

  On 8/15/2022 at 1:12 AM, Doug_N said:

Just a comment on Eric's fix and my fix.  Eric's copy and reflect clearly fixes the problems from the faulty dormer, and my fix explains what went wrong and how to correct it.  Both methods will work of course and Eric gets to the right result much faster.  My fix teaches you about what went wrong and what to look for in a similar situation.  In production I would definitely use Eric's solution.  

Expand  

Thanks again Doug.  You are right.  There's an extra roof hole that was causing the problem.  I'll be sure to look out for this in the future.

[Doug_N]

  On 8/15/2022 at 10:53 AM, kwhitt said:

Thanks again Doug.  You are right.  There's an extra roof hole that was causing the problem.  I'll be sure to look out for this in the future.

Expand  

Kevin, I suspect that you attempted to create the dormer more than once because there was also a roof hole polyline floating out in front of the house (which meant maybe 3 attempts).  In any case it is so easy for a dormer to get messed up because CA creates a new roof hole, even if the dormer can't be built.  This leads to unseen potential problems for a successful dormer creation with artifacts from previous attempts.  I can't tell you how many times my projects have suffered from these.  Especially if the layer where the roof hole polyline resides is turned off by accident.  Thanks for the follow up note as well.

 

I would have done a video to show the steps, but I was away on vacation and only had my laptop with me, and unfortunately didn't have the video software installed on it.

[kwhitt]

  On 8/15/2022 at 3:46 PM, Doug_N said:

Kevin, I suspect that you attempted to create the dormer more than once because there was also a roof hole polyline floating out in front of the house (which meant maybe 3 attempts).  In any case it is so easy for a dormer to get messed up because CA creates a new roof hole, even if the dormer can't be built.  This leads to unseen potential problems for a successful dormer creation with artifacts from previous attempts.  I can't tell you how many times my projects have suffered from these.  Especially if the layer where the roof hole polyline resides is turned off by accident.  Thanks for the follow up note as well.

 

I would have done a video to show the steps, but I was away on vacation and only had my laptop with me, and unfortunately didn't have the video software installed on it.

Expand  

Thanks again Doug.  I really appreciate the help.  I was looking at it for so long it's sometimes easy to miss something obvious.  That 3rd shape was a polyline solid I used as a reference for the hole in case I needed to draw it again.  Chief seems to have done a good job with these dormers.  I have never had them perfect before and now I have 3 really good ones!  Kevin

[Doug_N]

Your welcome, and glad to help.