Publishing unbuilt designs
I've got a project that I've been designing in SketchUp (a camper platform for attaching a full size tent to a small pickup truck) that I will definitely post on Instructables when, and if, I build it. The thing is, I've never built something like this before and I would really like to have opinions on the design before I start cutting wood.
What is general consensus on publishing unbuilt designs? It's not really a collaboration, although that might be a good model for what I'm doing, it's just an incomplete project that I would like to solicit comments on before construction.