topic Re: Stair with alternate treads in Modeling

Stair with alternate treads

Achille Pavlidis — Thu, 25 May 2023 14:36:51 GMT

Is it possible to model a stair like the one in the picture?

Re: Stair with alternate treads

Anonymous — Wed, 21 Oct 2020 11:10:24 GMT

Model a staircase with the step depth being the lesser one. Then edit the step lines to adjust for the full depth.

Re: Stair with alternate treads

Laszlo Nagy — Wed, 21 Oct 2020 12:35:27 GMT

You can model 2 types of custom Treads, save them using the "File > Librariers and Objects > Save Selection As > Stair Tread" menu command.
Then select the Stair and enter Edit Mode. Select every second Tread in Edit Mode and change them to one of the custom Treads you saved. Then select all other Treads and change them to the other custom Tread you saved.

Re: Stair with alternate treads

Achille Pavlidis — Wed, 21 Oct 2020 12:46:27 GMT

is there a reason the custom treads are placed in a completely wrong place?

Does this have something to do with origin?

Re: Stair with alternate treads

Achille Pavlidis — Wed, 21 Oct 2020 15:59:34 GMT

After a lot of trying I gave up and followed the advice of petsagouris, even though I had to manually draw every single tread.
I could not get the custom tread to be placed correctly. Even by starting with the stair and saving the tread as morph and then editing it, it was still misplaced. If I used a morph I made from scratch and saved as custom tread I got placed completely wrong.

It is a pity that this feature is so poorly implemented

Re: Stair with alternate treads

Barry Kelly — Thu, 22 Oct 2020 01:35:05 GMT

Achille wrote:
is there a reason the custom treads are placed in a completely wrong place?

Does this have something to do with origin?

Have you seen this Helpcenter article?

https://helpcenter.graphisoft.com/knowledgebase/74260/

Barry

Re: Stair with alternate treads

Achille Pavlidis — Thu, 22 Oct 2020 06:28:43 GMT

No I haven't, I saw it now.
I was working on floor plan, so this "ghost preview" was not very clear in its purpose.

Any way I got the stair to appear as I wanted in 3D, but the treads still appear as before in floor plan. So the manual editing of every single tread is still the preferable solution. I think custom treads created from morphs should appear correctly on floor plan.

Re: Stair with alternate treads

Steve Jepson — Fri, 30 Oct 2020 13:58:41 GMT

Were on earth would that stair meet any sort of building code? I am always curious about this when I see so many stairs of a unique design.

Re: Stair with alternate treads

Erwin Edel — Fri, 30 Oct 2020 14:47:13 GMT

Steve wrote:
Were on earth would that stair meet any sort of building code? I am always curious about this when I see so many stairs of a unique design.

Some expats here like to joke that there is a reason the Dutch word for 'stair' is 'trap', since older houses here have notoriously steep stairs, but this wouldn't meet any code here either

Maybe in the nautical world?

Re: Stair with alternate treads

runxel — Sat, 31 Oct 2020 19:41:54 GMT

Steve wrote:
Were on earth would that stair meet any sort of building code? I am always curious about this when I see so many stairs of a unique design.

It's a so called "Raumspartreppe" (space saving stair), or "Sambatreppe".
They are allowed, but only if you don't use it to access any living rooms, just for the attic.

Re: Stair with alternate treads

Steve Jepson — Mon, 02 Nov 2020 15:39:22 GMT

I like it as an improvement to the ladder. I have a place for that in my shop.