Modifying Stair ?

[Anonymous]

Hi,
I'm building a ss
tair and having a little problem in modifying it on plan view.
In my attached filed, I have a little corner of a landing that I want it to be cut off. But I don't know how.
Please help.
Many thanks

[Gerald Hoffman]

You could try using an SEO for this. Draw a wall or slab which is wide enough to cut off the entire corner that you want on an invisible layer and use it to cut off the corner of the stair. Make the priority different than your stairwell walls.

Cheers,

[Steve Jepson]

Sooner or later you will need to make a section and some details for that stair. Then you will realize that it would have been faster just to model the stair in the first place. I don't think any of those stair tools are very useful.

Model the stair exactly as it will be constructed, keeping in mind what things you need to show up in your sections and details.

[Anonymous]

Steve wrote:
I don't think any of those stair tools are very useful.

How do you model stairs?

[Anonymous]

I've tried a AC's built in stairs and archistair, finally I realized it really is just better to model it from the basics. I actually am faster at modelling them now than when I set all the various parameters in the stair tools. I model mine with the slab and roof tools. After you calculate your riser height & number Just to create your first tread (and riser finish to if you like). The use the multiply command with the elevation offest to your desired riser height and group your completed treads together. then just make a roof for the stringers, just change the slope in 3d to get the right angle, and SEO w/ upward extrusion your treads (&risers) and your done.

[Erika Epstein]

Steve wrote:
Model the stair exactly as it will be constructed, keeping in mind what things you need to show up in your sections and details.

Beautiful drawing Steve. Did you really model each piece of wood separately?

[Steve Jepson]

I would need to find my origianl file to know how much of this I modeled.
I probably modeled every part. It's a very simple thing to do.

Go to the manufactures web site, dowload the drawings of the specific parts the stair will be constructed with and trun them into ArchiCAD parts.

Nothing to it. Very fast and fun to do. And you end up with a useful model that can generate useful details and sections.

[Anonymous]

Thanks Scott and Steve.

[Steve Jepson]

Erika wrote:

Steve wrote:
Model the stair exactly as it will be constructed, keeping in mind what things you need to show up in your sections and details.

Beautiful drawing Steve. Did you really model each piece of wood separately?

I found the file. I did model the stair parts individually, but there are actually only 4 parts, and they were something I had in my library for another project. All I had to do was stretch them to the new width of the stair. The modeled step ( tread-riser-nosing) has been multiplied/distributed with vertical offset.

Looking at all the stuff in the drawing it appears that I used my section to model the stair, rather than rather than using the model to generate the section. The step units were probably placed in plan view and then dragged into place vertically in the section view. The dimensions have been tampered with using the over ride wich tells me that it was probably something pasted in from another project and time was not taken to make it perfect for this project. Probably a different sub floor thickness on the second floor required a slightly different rise. ?? Can't tell anymore.

Also, it looks as if I modeled the stair as if it had no landing and then split it and rotated the lower section a few different times to try out different get the landing arrangements.

It's very hard to tell anymore exactly how I did it and I do not remember.

[Steve Jepson]

I wish someone would pay me to model this stair and render it for them with my Maxwell or in V-ray.

This is the kind of thing I can do but I am stuck making silly permit drawings for questionable little remodels.

My talents are being wasted on the little projects I am able to scrape up around here for my self.

It has been 6 months since my last custom home project.


Shot at 2009-07-10