This is a lathe chuck model thats 3D Printed.
This video shows how to assemble it.
The files for the model can be found on these platforms:
https://www.crealitycloud.com/model-detail/cnc-lathe-chuck?source=22&profileId=69f8bd71f76f419e08514578
https://www.printables.com/model/1710586-cnc-lathe-chuck
https://makerworld.com/en/models/2756743-cnc-lathe-chuck#profileId-3059648
