This is going to be my first attempt at working with foam. I've got the pattern printed out and joined and am ready to start transferring this to the foam etc.
However, I have noticed that there are dashed lines along the edge of the dome piece. Looking at the 3D pep file I note a ridge that runs all the way along both sides of the dome - which makes sense given the dashed lines along both sides. But looking at all the completed helms in this link, none of them have the ridge.
I'm just wondering if I should ignore the dashed lines and join them edge to edge, or attempt to create the ridge using the lines and bending it outwards from the edge of the dome? The pics of the actual costume seem to have a ridge running the length of the helmet but it's hard to tell in some pics whether it is a groove or raised.