topic Re: stair width in Modeling

stair width

Strawbale23 — Sat, 09 Dec 2023 23:43:19 GMT

Hi,

Creating a stair using AC27, and I notice that the stair width is 1cm different at the top of the stairs than at the bottom, what could be causing this???

thanks

Re: stair width

Steve Jepson — Sun, 10 Dec 2023 15:24:32 GMT

Different in the same view? Or different in views that might have different dimension settings ?

Re: stair width

Strawbale23 — Sun, 10 Dec 2023 15:32:55 GMT

Hi Steve, on plan view I have my stairs placed. And when I measure the width of the stairs at the bottom and the width of the stairs at the top. There is a 1 cm difference. This also means that the long edges of the stairs is not parallel.

Re: stair width

Steve Jepson — Sun, 10 Dec 2023 15:48:54 GMT

Just one more reason why I have so little to no use for the Stair Tool. Things like that can go unnoticed for a while and cause all kinds of problems. At least you found it. Good luck with it 🙂

Re: stair width

Barry Kelly — Mon, 11 Dec 2023 01:01:45 GMT

Can you show an image of the stair in plan?

Barry.

Re: stair width

Strawbale23 — Mon, 11 Dec 2023 01:07:26 GMT

Hi Barry, here it is:

Re: stair width

Barry Kelly — Mon, 11 Dec 2023 01:20:25 GMT

Can't get any more simple than that.

What does the flight width in the stair settings say it is?

And I assumes you have placed this stair by defining the length of the base line (reference line)?

You haven't edited or stretched it in any way?

Is it a rounding issue with the dimensions.

Can you set your dimensions to show more decimal places as a check?

Barry.

Re: stair width

Lingwisyer — Mon, 11 Dec 2023 01:39:34 GMT

Having dimensions fall on half your dim accuracy is sooo annoying...

Re: stair width

Strawbale23 — Tue, 12 Dec 2023 09:44:32 GMT

Thanks Barry, you were right, I had accidently stretched it in the cornerby a tiny fraction and had not noticed.

I did not know this was even possible.

Re: stair width

Barry Kelly — Wed, 13 Dec 2023 02:32:09 GMT

There is the stair baseline (reference line) that controls the path of the stair.

Usually when you select a stair you see this single baseline.

But if you select the stair by the opposite side to the baseline, you will see 2 boundary reference lines.

Stretching these will affect the shape of the stair - make one end wider or curve an edge for example.

Barry.

Re: stair width

Strawbale23 — Wed, 13 Dec 2023 09:31:16 GMT

Agree. I can be frustration to carefully layout your bim model and then have dimensions not reflect the dimensions correctly.

Re: stair width

Strawbale23 — Wed, 13 Dec 2023 09:32:28 GMT

Thank you Barry. The stair tool intimidates me but I am getting the hang of it little by little. When it works its great.