how to view/use hole centers or construction lines?

[coho66]

so i've got this snowboard rack that i need to layout/markup with some #8 machine screw holes (with countersink for tapered wood screw head) - two on the end of each stretcher to fasten them to the uprights - 8 in total. I also want to layout 8 more holes on the stretchers themselves. I've got some center holes marked in the sketches..but they're not visible when i activate the hole feature so i can properly place the holes? why is this?

i'm also wondering why i can't extrude the 4 spacers i've got sketched on the back of the stretchers into a solid . . . . i can only cut?

 

[EngAddict]

Make the sketch visible first, or share it.

I can extrude all objects in the sketch, can you be more specific?

You should make sure your sketches are fully constrained too.