roofs tools problem

[mmiles]

....this roof is messed up and i cannot resolve it.

see attached: why does the principal roof step up like it is(see attached no. 1)? I want the roof to be one plane that has the same slope, and I want the eaves/fascia to be parallel. The footprint of this roof is essentially an El, but when I eliminate one of the "defines slope" the eaves of the short leg also slopes (see attached number two).

[sbrown]

Edit the skectch and chose align eaves, then click the box to adjust the height and you'll see various numbers on each sketch line. pick the right height first then the line with the wrong height and it will change.

[mmiles]

I tried that, and the first image is the resultant...but i have since opened a new file and recreated the roof with the desired result. the footprint required an irregular shape and I think I had used the split lines tool at one point or another....somehow the roof got mangled and aligning eaves was not functioning as I expected. I am not sure what was going on....probably too many cocktails and revisions all at once.

Am I wrong in my thinking that picking a wall behaves differently than drawing a boundary? And I've noticed that sometimes the rafter cut does not always apply to the ends depending on how the roof is created. I think, if you look at my images, you can see that.

Regardless, i seem to get what I am after now....Thanks.

[twiceroadsfool]

They can be coplaner, but if theyre coplaner one of the eaves has to be lower... Thats just how the geometry works.

Grab the sketch line, and lower its properties from the base level by the amount it should be lower. (In my example i put -5" when i meant -5'...)

[twiceroadsfool]

BTW, LOL!!!! @ "argh. wtf!"

[thand]

Am I wrong in my thinking that picking a wall behaves differently than drawing a boundary?


If I remember correctly, if you pick walls vs. drawing a boundary they do behave differently.
If you pick walls the bearing of the roof on that wall is different compared to drawing a boundary. Do a little simple test and you will see what I mean.

I hope this reassures your thinking of the two..

[mmiles]

Thanks, guys. The offset helps alot...so far I am making guesses about height rather than calculating those offsets, with trial and error is gets close.

And, yes, I see how the method of lines (pick wall vs. draw line) affects where the offset is being measured.

For some reason, I occasionally get one eave that is plumb cut, when the roof itself is set to two cut plumb....and I haven't figured out why. I was thinking the method of roof footprint was establishing that, too. hmm, don't know....