Hand Spinner béton

https://youtu.be/Y_OUum_W2F4

" automatic translation : "
Feature :
The masses distributed away from the axis do not form a hardening liquid to be poured into the recess of the main body. The single recess is symmetrical with respect to the center of the bearing.

Here, the mass is ensured by a mixture of fine sand and cement metered at 50%, moistened for slow drying.

operations:

1 Print without support
2 Check the bearing and the lid, if necessary, deburr or sanding.
3 place t