Scissor lifting mechanism

Input: orange gear shaft.
There are three symmetrically arranged scissor mechanisms.
Their brown lower short bars are pivoted on the white base.
Their brown upper short bars are pivoted on the blue top.
The pink lead screw receives rotation through the bevel gear drive and pushes up the three-arm green nut.
The latter interacts with the three scissor mechanisms and makes them move together.
The spatial arrangement of the scissor mechanisms helps avoid prismatic joints in planar scissor mechanisms.

STEP files of this video:
https://www.mediafire.com/file/phd2ktyba07hb47/ScissorLiftingMechanismSTEP.zip/file
Inventor files of this video:
https://www.mediafire.com/file/fr49pn98biommtq/ScissorLiftingMechanismInv.zip/file

Видео Scissor lifting mechanism канала thang010146