How to clean up seam allowances
A little bonus post on how to adjust the corners of seam allowances on a curved edge that will makes things easier to sew.
Welcome to Sewing With Numbers, a newsletter about sewing, math, design and how to draft your own sewing patterns. Through simple pattern drafting exercises, I'll show you how fun, useful and empowering math can be. ✂️ Posts older than 3 months are archived for paid subscribers. But if subscriptions aren’t your thing, I also have PDF Booklets for older projects in my shop.
Hello sew-friends! Today is a bonus post related to our most recent Undies project. As I was sewing the undies for last week's post, I was thinking about how seam allowances along curves can be drafted for easier assembly. Basically, the corners of the seam allowance can be trimmed so that the cut edges of fabric line up perfectly for sewing a seam. I'm honestly not sure what the correct terminology is for this concept. It seems similar to "Trueing" but trueing is generally about the seam line, not the seam allowance. If you know, please let me know in the comments.
Update 09/2025: This post is now archived for paid subscribers. If you are interested in this project but don’t want to subscribe, you can purchase a pdf version of this project in my shop.
