Haha, after I read your post I went into the garage & looked at the HF one. One quick look and I thought, yeah that's not gonna happen. Too much work, this thing only cost me the same as a meal out, not worth it to me. I do like the idea though.It was a bit of a PITA. My method was to cut paper to the shape, transfer that to cardboard and then use the cardboard as a cutting template. It wasn't a perfect process (mainly lack of skill on my part), but it didn't need to be.
I use CAD too (cardboard aided design).





























