How is a helix for spiral staircase calculated?

3D Design
1

Hello
I have several spiral staircase projects coming up, and I would like to have information about the repetition function following curve.
No worries to use the function, but I would like to know how to use and set up my pilot propeller according to the only elements I know:
- height to climb (example 3000mm)
- Walking angle (example 18°)
I'm lost between the height data and not ...

If I change data, I want my propeller to change automatically.

Example attached to the beginning of a staircase.
Looking forward to your return.


esca_heli.jpg
2

Hello

Your beginning of the staircase is already a beautiful beginning...
Attached, the skeleton of a staircase as I imagine it (SW 2020) and a Word file with some comments.
Hoping this will suit you.

Kind regards.
 


stairhelice.sldprt
escalierhelice.docx
1 Like
3

2h+g between 590-650, formula modelled on the average step as a function of the degree of slope....

For spiral stairs sometimes it is difficult to apply this formula because of the escape.... landing and the starting position of the stairs.....

For the spiral, it starts from the top of the 1st step and arrives at the point of the height to be climbed - delta h-

Sincerely, Pierre


R1.. jpg
4

Hello

I use this site for the calculation of stairs:

https://easystair.net/fr/escalier-helicoidal.php

Have a nice day