Thingiverse is an app with 3D designs.I did not use thingiverse We used .zip. Workplane is what you build on, the scale is how big the object is and union group is to mesh objects together.

https://www.tinkercad.com/thin........gs/ew9H8irzX4B-3

https://www.tinkercad.com/thin....gs/6qhYZrNUyq1-funky