Over the last few months I've been cutting my teeth on various DIY projects for my hammock setup, and now I think I'm ready for the brass ring: Rainfly.
Not only that, but two rainflys. I've bought enough sil-nylon (1.9) for two hex-cat tarps (very) closely based on the popular DIY Gear Supply plans
I've seen linked numerous places around here. I've got a great machine, lots of quality polyester thread, is there anything I'm missing? Any tips or tricks that ya'll think I may find helpful? I've so far sewed up skins, a fitted fising rod case cover, bishop bags (****, this is addictive), and I'm halfway through a fitted pack cover, so I believe I'm technically up to this task. I'm mostly worried about laying out the pattern properly, since large swathes of fabric (even sil) move and stretch as you try to mark them.
Any tips for keeping everything square?