Thanks for your posts, Petr and Michael.
The object is a tool to drill to assemble pieces of wood, sorry I don't know the name in english. To assemble with small wood cylinders.
Yes, I know, it's strange.

For the fillet chrashes, you are right : I just installed the last version recently, and I try. The crashes were with the preceding version. Sorry. I try the new version and I say you.



(a idiot question: how can i do to show the attachments images in the post?)
The second objects (render too with cinema4d) :