3D spiral stair case

[Son25461389nxhx]

Hello, 

Looking for advice on how to build a 3D spiral staircase.

Any help/tips/directions is greatly appreciated.

Basic reference attached. 

  

Final look and feel will be similar to what I've created here - only the steps would be spiraling. 

 

[Monika Gause]

WIth the 3D-effects you can build this, but it won't be 3D, only 2,5 D. Every 3D object in Illustrator lives in its own 3D space. So you can of course move the objects around to create the illusion of a staircase, but as soon as you want to edit anything, you will get in trouble.

It's easier with the perspective grid, but still has its limits.

https://www.youtube.com/watch?v=SF3R9yC47mM

[Son25461389nxhx]

Hi and thank you, I've tried this tutorial prior to jumping on here...not truly the effect I'm looking for. 

[Monika Gause]

You want to take a look at a real 3D application.

You could try whether you can do it in Adobe Dimension. If you can't then it's time to learn Blender.

[MikeGondek]

1. 3D Extrude on rectangle
2. option drag a copy to the bottom
3. use appearance to change the rotation 180
4. set your blend step amount to a manual amount
5. create a blend between both
6. expand the blend
7. ungroup
8. relayer if you must
9. set cursor key distance
10. use cursor key to move them around (I stopped at 5th block to give you an idea of process)

[MikeGondek]

Do you still need assistance?