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cornice for raked ceiling

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    cornice for raked ceiling

    I have been doing some extra modelling to a residential house just to learn, so I am aware that it could be modelling overkill. And also modelling in place and its associated file weight problems. However, I'm playing and learning.
    So here's my problem.
    I'm trying to sweep a cornice profile around the edge of a raked ceiling, but am hitting all sorts of problems. On the flat ceilings I had a 10mm horizontal offset for the wall plaster. But when i go to place the cornice around the bottom edge of the raked ceiling, the profile mirrors and flips, and offsets both horizontally and vertically. With very strange values. I did it all in 3d view, and even created a workplane along the raked ceiling.
    I was expecting to simply replicate the sweep for the flat ceilings, but this is throwing wobblies.
    Yes a wall sweep might work, but along the rake?...Don't think so. and that would also mean creating more wall types, purely for differing heights of cornice sweeps anyway.
    What approach do people do who want to model the cornice in? Especially on a raked ceiling?
    Motorbike riding is one long bezier curve

    #2
    I'd try a Fascia. They're profile based and can be attached to Model Lines. It works on a raked roof... why not a raked ceiling?


    Sent from my iPad using Tapatalk
    Greg McDowell Jr
    about.me/GMcDowellJr

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      #3
      Model the ceiling as a roof in 10mm gyproc then use fascia (cornice profile) works a treat.
      Attached Files
      Last edited by mark b; June 8, 2017, 05:37 AM.
      Mark Balsom

      If it ain't broke, fix it till it is.

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        #4
        Thank you very much Mark and Greg.
        Have used model lines, so keeping the ceiling as a ceiling for VG reasons.
        Now I'm pedantically frustrated with the different angle of the cornice meeting wall and ceiling faces. The only way would be to create second and third profiles with an 8 degree alternate angle to match the rake pitch.Or maybe just fudge it like the plasterers would for 8 degrees.!
        Last edited by biff; June 8, 2017, 06:14 AM.
        Motorbike riding is one long bezier curve

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          #5
          I gave up using ceilings for anything sloped years ago. I understand why you might want to use a ceiling but at the end of the day I don't schedule them and there is many ways to deal with alternate VG reasons. Roof's are a lot more flexible.
          Mark Balsom

          If it ain't broke, fix it till it is.

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            #6
            Take your point, thanks mate.
            What other areas might using ceilings in a sloped condition be a problem?
            Last edited by biff; June 8, 2017, 07:25 AM.
            Motorbike riding is one long bezier curve

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              #7
              Originally posted by biff View Post
              Take your point, thanks mate.
              What other areas might using ceilings in a sloped condition be a problem?
              Speaking for myself "if" you could extrude a ceiling i would find them a lot more user friendly.
              Just about the only time I model a ceiling is in a raked situation so the client can visualize the intent in 3D and these often run from flat to raked then raked back in the opposite direction from the apex and might terminate at a different pitching height, all this is a bitch to do in ceiling mode with slope arrows and pitching heights and then you have the cornice problems you are experiencing. With a roof by extrusion its all to easy.
              Just my 2 cents worth.
              Mark Balsom

              If it ain't broke, fix it till it is.

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                #8
                Gotcha, ty.
                Motorbike riding is one long bezier curve

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                  #9
                  Just set your Roof Name to Ceiling-Whatever and make sure its Assembly Code is set to Interior Construction or whatever estimating code your team uses for estimating and let them know you needed to use a roof instead of a ceiling. Its not a big deal. you can control visibility with a filter looking for the name Contains Ceiling or based on Assembly code. You will find you have to use Generic models sometimes, etc, for things that should be something else. We uses Roofs for hardscape, so we name them Site- or whatever and then ignore that its a roof category by utilizing filters. I've asked literally for over a decade now for them to make the ceiling tool work just like the roof tool, but for whatever reason its not happening so we have to work around it.
                  Scott D. Brown, AIA | Senior Project Manager | Beck Group

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                    #10
                    Thanks scott, i lnow a lot of you guys use roofs as hardscape, i wondered why floors cant have subpoints, and cut topo, so they can be used as hardscape? Or, a new category, hardscape for vehicle surfaces and walkways, switchable topo cutting even.
                    Last edited by biff; June 9, 2017, 04:20 PM.
                    Motorbike riding is one long bezier curve

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