Modeling
About Archicad's design tools, element connections, modeling concepts, etc.

AC21 - Double winder stairs

Anonymous
Not applicable
Goodmorning, I'm a new AC user and I don't find a solution to create a stair with a double winder (start and finish). Any suggestions? Thanks you a lot.

STAIRS.png
24 REPLIES 24
Laszlo Nagy
Community Admin
Community Admin
And the final result.
Notice that now I modified Dimension Settings so the left length of the Stair Baseline shows 1.200 m, while the Measure command correctly shows that it is actually 1.2001 m long.
DoubleWinderStair-4.png
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Hmooslechner
Moderator
Lazlo:

I wonder if it would be possible for You to create a simple scree-capture-Video for Youtube with Your kind of solution. It would be much simpler to follow Your solution.
I myself made about 400 Youtube-tutorials until now and had the experience, that this helps most.

Graphisoft:

It is sometimes problematic (way too complex) to create simlpe winded stairs - what do You think of adding simple pre-sets of stairs for the often used solutions "analog" to favorits - favorits for stair-forms?
The program should save time and not spilling time, which could be used for more important drawing-tasks.
AC5.5-AC27EduAut, PC-Win10, MacbookAirM1, MacbookM1Max, Win-I7+Nvidia
Laszlo Nagy
Community Admin
Community Admin
I won't have the time to do that now, but you are welcome to create such a video based on my steps, if you have the time.
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AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
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Hmooslechner
Moderator
AC5.5-AC27EduAut, PC-Win10, MacbookAirM1, MacbookM1Max, Win-I7+Nvidia
Hmooslechner
Moderator
I really tried it with the parameters from the first picture from Mr. Mirko, but it was not possible for me.

Lazlo - Your stair is way too big in length.

i tried to import the picture and scaled it to 1m stair-with first.

applied our level-hight first.

riser-hight: 290/14=20,71428 cm

measuring the wall-length - its about 4,1m:
middle-line-length approx. 410cm
step-with: 410/13 =31,54cm

I really tried it about 2 hours and then i left the topic for me at status "open" - not solved.

There seems NOT to be a fast solution.

If You try to get near step by step - it always stops you in the middle somewhere.

I did not make vidoes of my tries, because i did not want to blame Graphisoft so open (as i did in german versions of my problems with the new stair-tool) - but its way too complex in this form and Graphisoft should really think about offering some pre-sets for such simple often used stairs.

Some german tries:

https://youtu.be/FI_qXddeGto

https://youtu.be/oIOXVn1S9MM




I really would like to see Your simple solution on Vid.
AC5.5-AC27EduAut, PC-Win10, MacbookAirM1, MacbookM1Max, Win-I7+Nvidia
Hmooslechner
Moderator
Now i tried it once more a really bit of my spare time:

https://www.dropbox.com/s/e0q4y2lieb5ivod/Archicad%2021%20stairtool%20problems%20with%20small%20winded%20stairs.pln?dl=0

I got a solution, but its way too complex for normal users to get it working and its not completely correct till now.

This time, i screen-recorded the most of the session and it is in upload to youtube now the next few hours.

This following Vid is NOT A TUTORIAL!

Its an working-following vid about the conceptional problems with the new stair-tool in Archicad21.

It simply is not possible for me until now to get the tool working correctly in some difficult situations.

even- tries -stepb after step - the tool wortks just until an point and stops working then. bringing me unwanted solutions...

My suggestion: Graphisoft - leave the winding on edges completely!
Just look at every knot alone for windings - it would be much easier to understand and make the work-flow understandable much more for the User to be able to construct step by step.

For the user - its simply not possible to understand-why some working step works and other steps are limited short before a solution.

First video is failing without "the solution", just to show how a normal user will seek und tries step by step just failing:

https://www.youtube.com/watch?v=L8oHlifIJWY



BUT second, the steps to the "solution" will follow...

This is also NOT A TUTORIAL!

The work-flow is much too complex for normal users and its NOT understandable, why some working-steps are possible, some others quite similar are not possible.

A User needs much to much time for constructing small winded stairs. Graphisoft: You can program much simpler helping ways to do things like this small stairs - please think over it once more!
AC5.5-AC27EduAut, PC-Win10, MacbookAirM1, MacbookM1Max, Win-I7+Nvidia
Hmooslechner
Moderator
The second part of my search for the solution:

https://www.youtube.com/watch?v=bgMmr31y40s
AC5.5-AC27EduAut, PC-Win10, MacbookAirM1, MacbookM1Max, Win-I7+Nvidia
Hmooslechner
Moderator
Its possible to come the wanted solution very near , but the workflow it is just klicking around in an very erratic way. I updated the dropbox-file - but its an Edu-Version file so far and i could not get the same result by trying it once more...
Obviously there is a way, but second time at some point, i did something else, as i got near the solution and it was not possible for me to do it again...


Is it possible, that the stair-tool is not very stable?
AC5.5-AC27EduAut, PC-Win10, MacbookAirM1, MacbookM1Max, Win-I7+Nvidia
alemanda
Advocate
Hmooslechner wrote:
Graphisoft:
It is sometimes problematic (way too complex) to create simlpe winded stairs - what do You think of adding simple pre-sets of stairs for the often used solutions "analog" to favorits - favorits for stair-forms?
The program should save time and not spilling time, which could be used for more important drawing-tasks.
Yes. I think this is a work to be done by the local resellers/agents
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Hmooslechner
Moderator
now i have a solution which should be reproducable and the shortest possible.

I didnt count the tries but on a point of loosing all my intentions, i have got it working!

A clear moment of ZEN -smile!

Its really a "klicking-orgy" necessary to find the points to klick on to have a starter-geometry which you can move to the exact position.

Dont think, You can follow it without some lost time-tries!

But - dont give up - it is working at the end!

it is in upload for about one hour from now - wait untill its finiished.

https://www.youtube.com/watch?v=_HOSJJvIIlI
AC5.5-AC27EduAut, PC-Win10, MacbookAirM1, MacbookM1Max, Win-I7+Nvidia