sudoku ? (need some help/advice how to close a surface)

 From:  PaQ
Hello everyone,

I'm actually building a robotic claw, inspired from an hard drive device (it's for a western digital contest).
Here's a little preview :

That's for the little story.

I was fitghting now a little bit to close a surface, a 6 branchs fillet star. Here's a view ...

Well I know it's a weird surface. I also know I will lost continuity everywhere (I don't really care, it's a really small detail), but if someone can still give me some help/advice/tips about the best way to doing it, I'm listening :)

I have attached the file is someone has some time to lost :o)

Thanks a lot.

EDITED: 28 Nov 2014 by PAQ