I recently scored some bargain hides in OKC and mailed them home to Ithaca. They arrived last Thursday and bit by bit, over the past week, I’ve been working toward making a full-scale leather bag.
You can see my iterative prototyping here: https://photos.app.goo.gl/wySRTm8M2rdiyWke9
I started with a tiny prototype just to learn how the stitching would feel in this material. But it was so tiny that I couldn’t even turn it inside out when it was sewn up. So I moved up to a half-scale version of the bag, first in EVA foam. This prototype was really quick and gave me some good intel–I just wanted to see how the bag would hold up when I turned it inside out after sewing. Turned out ok.
From there I moved to a half-scale in leather. From this prototype I wanted to experience each step of the process: cutting and preparing the leather, gluing and clamping, sewing, and turning it inside out. All went well except for the proportions. When I turned it inside out, it was too tall because the leather, unlike the foam in the previous model, brought the side seams in significantly.
But my prototypes gave me the confidence to move to full scale even though I hadn’t yet gotten the proportions I wanted. I made proportional adjustments in my full-scale template then cut and prepped and glued and sewed. I rushed through the rivets a bit because I was running out of time, but overall I am very pleased with the bag. I’ll carry it around with me for a week before I make another, just to test how it behaves in the wild. But I have a feeling that I have a design that’s close to production ready.
Hoorah! Now the question is, can I buy myself a fancy rivet press? Uh, tools are cool.