Hello;

     I'm trying to get some practical info., on using surfaces in gage design. I created this surfaced block; and would like to convert it to a solid as to add

fastener holes etc. I believe for as many sides as it has, I'm to try to use the knit command from other posts. But the try to form solid remains greyed out,

and even if I select all the sides, the front & back face particularly it say's I can't do it.

    I've attached the file, anyone know what's going on?

Thanks in advance for any input;

Rob_D SW 10 sp4