topic Re: Intersect eave & rake? in Modeling

Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 17:55:08 GMT

I want my CP eave & rake to intersect each other and match up. First picture is them placed. Second picture shows what happens when I try the intersect. Do they need to be the same materials? (i.e.: fascia boards made of same fill)?

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 17:57:00 GMT

This is "intersected".

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 18:26:35 GMT

Got it mostly cleaned up but still a hole at the corner.

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 18:42:59 GMT

Are those CPs used as a beam? Because the beam tool provides the tilt and roll that may achieve the intersection you are looking for if you place them as beams. And I am assuming the intersection would be perpendicular along the roof angle.

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 18:44:43 GMT

Yes they are beams.

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 18:48:11 GMT

Are those two different CPs? I ask because I wonder if perhaps the different soffit/overhang depths are preventing you from completely closing the intersection? Could the fascia be its own CP? Either that or double check the size and materials (maybe they do need to match) of the fascia between the two CPs.

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 18:50:49 GMT

Yeah they're two different CP's. I didn't know really what the process is for creating an eave/rake CP. Should just the fascias be a CP (the same) then make the rest separately?

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 19:03:09 GMT

Perhaps I could suggest (and anyone could feel free to rebut with a better one) having the fascia as its own CP and use the roof tool to recreate the soffit?

EDIT:

Steven wrote:
Should just the fascias be a CP (the same) then make the rest separately?

Sorry. Didn't see this post since I did not refresh my window. Looks like we both now share the same idea.

Re: Intersect eave & rake?

Erika Epstein — Tue, 17 Aug 2010 19:27:31 GMT

Steve,
1.Check that the reference line in the CP occurs at the same place e.g. the inside most plane, the one that abuts the roof.

2. the second CP the fills will be taller to adjust to the distortion of the angle of the slope of the roof.

If you do a search, David Maudlin or Peter Devlin did a nice tutorial on the second part.

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 19:47:58 GMT

Got it. Used same profile as a beam for both. I only profiled the fascia boards as the soffit detailing will be different between the two. I believe that's what was messing me up before, I was trying to intersect two different profiles.

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 19:53:55 GMT

Yes. The reference line is the problem.

This might be a regional thing. Fascias and eaves are always built out of the same lumber. i.e. if the fascia is 2x12 on the rake it will be 2x12 on the eave. If the shingle strip is 1x4 on the rake it will be on the eave. This means the carpenters have to cut out a little flat spot at the bottom of the rake to make the pieces intersect. Properly drawn it should look like as shown below.

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 19:59:39 GMT

Or like this if you have a perpendicular roof edge, correct?

Re: Intersect eave & rake?

Anonymous — Tue, 17 Aug 2010 21:55:35 GMT

Yes. I assumed your example was with a plumb eave.

Re: Intersect eave & rake?

Stress Co_ — Thu, 19 Aug 2010 17:00:27 GMT

I WISH we had a better roof tool

Re: Intersect eave & rake?

Anonymous — Thu, 19 Aug 2010 21:22:50 GMT

Agreed. I spend a lot of extra time trying to get roofs to look right. I had to develop custom objects to do the job.

Re: Intersect eave & rake?

Anonymous — Fri, 20 Aug 2010 03:54:53 GMT

phubbell wrote:
Agreed. I spend a lot of extra time trying to get roofs to look right. I had to develop custom objects to do the job.

Hi Phubell
When you have time.
Do you mind showing how your "custom objects" get the job done,
as an inspiration?

Re: Intersect eave & rake?

Anonymous — Fri, 20 Aug 2010 04:03:17 GMT

No problem. Contact me at phubbell@mac.com.

The overhang objects rely in part on trimming code I use in the beam object I've put in the depository.

Re: Intersect eave & rake?

Anonymous — Sat, 21 Aug 2010 17:12:47 GMT

To create simple rakes and fascias without rake/eave problems: copy the roof , then offset and change thickness to match your trim elelment. Fast and easy to redo if main roof gets edited.
Now offset the new rake or fascia "roof" and subtract out the internal area to avoid 3D viz issues and garbage looking sections.

Snap