About this 3D model

This is a rotating Christmas tree with hearts that revolve in the opposite direction as the tree rotation. The motion is created manually with a turn of the cranks on the side. The tree is printed in parts. The assembly stl shows how the model is put together. I has to glue the star to the tree, the tree to center gear, and the power transfer gear to the crank handle. Everything else should fit together. This object was made in Tinkercad. https://www.tinkercad.com/things/h1v4303A6lB