here is my new ashtray ! I made it with white concrete.
print time : around 4 hours
material : around 6 meters
1// Print the model
2// Cast the formwork with concrete
3// Wait.... wait.... wait.... at least 24 hours
4// Carefully stripping formwork (I use a soldering iron to cut it like butter)
5// Smoke a cigarette !
Please, let me know if you made one !