I just finished one project, now it's time to start another. My current sleeping bag sucks, so I want to make a new one. Before I begin, I do have a few questions that I'd like an answer to.
1) I already had most things figured out, but then I found out about karo designs. Karo designs are apparently easier to fill, but there are more baffles, so it takes longer to make. However, I have not been able to find anything about real (dis)advantages of a karo design compared to a "standard" box/trapesoid design. Which design is warmer/lighter/better?
2) For sizing, I figured I'd roughly copy the size of a bag that I like. When I measured the individual panels of that bag, I noticed that the bottom panels of the bag were less wide than the top panels. Why would this be done? Why not have equally large top and botom panels?
3) I want the inner fabric to be smaller than the outside fabric. That way it's more difficult to compress the down. How do you calculate how much the difference between the inner and the outer fabric should be?