Spiral Staircase 1.0

This extension allows you to easily model spiral staircases, enable the Live Update functionality to see what different controls are doing while moving the sliders or switching the toggles and choose to use plates or items for steps. To see the updated spiral beam features of Tekla Structures 2017i, click here: https://youtu.be/gjsdFWKM2gk . Also, check out the newest update to the Spiral Staircase tool - Spiral Staircase 2.0 - https://youtu.be/tTjI7iUpMX0