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Winder Treads - How do you get them where you want them (without sketching)?

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    Winder Treads - How do you get them where you want them (without sketching)?

    I'm trying to make this stair:



    I have managed to get this far using components however I cannot seem to get the winders to reduce down to 3 from 4:



    I've seen quite a few image of this arrangement in Revit but I don't know if it was done by component or sketched. I'm trying to keep with components (my understanding from reading different articles is that its the advised method to use over sketching if possible) but I've done little with stairs so I'm not sure if its worth persisting with them.

    #2
    Edit the component by switching to sketch mode... It's the only way to make a tread curved.

    You will want to anyway to fix the winders.
    Michael "MP" Patrick (Deceased - R.I.P)

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      #3
      Ok, so I ditched the stair by component and recreated the stair by sketch to get the desired winder positions. Now my stringer is missing at the quarter landing and one of the winders. Is there anyway to fix the stringer?

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        #4
        You know you didn't have to start over right? When you edit the stair component you can just click the "Convert" button and it changes it to sketch.

        As for fixing the stringers, you need to break the outlines where you want the stringers to change slopes.

        BTW...I would check your stringer size, they look a bit large.
        Last edited by MPwuzhere; November 21, 2017, 04:54 PM.
        Michael "MP" Patrick (Deceased - R.I.P)

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          #5
          Cheers Michael

          Originally posted by MPwuzhere View Post
          You know you didn't have to start over right? When you edit the stair component you can just click the "Convert" button and it changes it to sketch.
          Yeah I saw the button but I had to restart as apparently the layout of the stair in the plan I was working to isn't the same configuration as the detailed drawing :crazy:, so I just decided to start again in sketch mode rather than amend what I already had.

          Originally posted by MPwuzhere View Post
          As for fixing the stringers, you need to break the outlines where you want the stringers to change slopes.
          Hah yes, I eventually found that solution though I found that changing the break point position often didn't control when the string changes slope. I think its due to the Structural Depth on Run and Landing parameters influencing the actual slope change position.

          Originally posted by MPwuzhere View Post
          BTW...I would check your stringer size, they look a bit large.
          Agreed. Truth be told I was just testing what each parameter was doing and having done so I'm not convinced that I will get the stringer looking how I want it to. I did read about an alternative method (BIM & BEAM: Custom shape of stair stringer) where the stair is only used for the risers and treads and the stringers are achieved by using a railing. When I was last working with Revit full time 2.5years ago I remember making up a relatively complex balustrade arrangement using multiple railings and being able to control the precise heights using the sketch path so I guess the same principle applies here.

          Any thoughts on that idea?

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            #6
            I've started testing out using the railing tool, seems to be working however the railing is cutting through my floor. Is there any way I can trim the railing to the floor? I've tried following the instructions to split the sketch but not having any success so far.

            Last edited by BLothian; November 22, 2017, 08:56 AM.

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              #7
              you could split the sketch line where it hits the surface of the floor. That would cause the railing to go horizontal to whatever distance past the bottom riser you choose - standard 300mm here for communal areas
              There are no stupid questions, only stupid people

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                #8
                Hi Elton, yeah I've tried that but I have have not been able to keep the top edge sloping and the lower flat where it meets the floor. My suspicion is that its because the sketch in the railing family is drawn below the Rail Top ref plane:



                The article I linked doesn't state it but I get the feeling the author used 2 different railing families to get the 'flattening' effect i.e. one profile sketch drawn above the horizontal the other drawn below. On the completed isometric view (with the red circles) you can see a line on the back stringer at the landing, this is where I think 2 different railings meet. I could be wrong, but I've had no luck getting the same result.

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                  #9
                  Originally posted by BLothian View Post
                  Hi Elton, yeah I've tried that but I have have not been able to keep the top edge sloping and the lower flat where it meets the floor.....

                  ....I get the feeling the author used 2 different railing families to get the 'flattening' effect
                  this won't happen without either (as you mentioned) using a second railing or at least a custom end baluster. Railing profiles become extrusions that can't be cut, ie. all of the profile all of the time.
                  There are no stupid questions, only stupid people

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                    #10
                    Originally posted by elton williams View Post
                    this won't happen without either (as you mentioned) using a second railing or at least a custom end baluster.
                    Its not ideal but it might be what I need to do though I'm still looking for alternatives.
                    I read about:
                    • Using Framing Profiles and Beams (not sure if this also has the same flattening issues as a railing)
                    • Using a profile-edited wall to represent a stringer (I think it was actually one of your posts that suggested it)
                    • Using a Generic Model.

                    I've successfully tested the latter using a line-based GM which creates a stringer for a run with parameters that control each extension at each end. It seems to work well though if I stick with this option I'd likely make it face-based instead and host on the floor instead.

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