This is the next generation of our basic grab & lift Lego Mindstorms EV3 construction. Again it is using a single motor to grab & lift objects. It's based on a Large Motor and - opposed to the medium motor construction - does not require a worm gear to keep heavy weights up. Not having to rely on a worm gear makes it much faster!
It served us well for our WRO 2018 competition.
Programming is explained in another video:
https://www.youtube.com/watch?v=eCBkrc33HeE