Would this be any good?

Well, im trying to build my first WB, but have some problems getting my hands on a mill.

so i made this desing. plz tell me what u think about it. i tried to copy cathar's WW but without using a mill.



the big holes are 1cm width, and the small ones are 0,5cm width.
the base thickness is 0,5cm and the channels are 1,5cm deep.

Looks pretty cool, but i would not know what really works or not. I would say build, test, and then you will know.