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Struggling with overlocker tension? Here’s how to fix it—fast.
One of the most common frustrations sewists face when using an overlocker is getting the thread tension just right. With four threads to think about—upper looper, lower looper, left needle, and right needle—it can feel a bit overwhelming. But once you understand how these threads work together to form a stitch, adjusting your tension becomes much simpler.
In this video, I’ll walk you through exactly how overlocker tension works and show you clear examples of what happens when the tension is too tight or too loose on each of the four threads. By the end, you’ll be able to recognise tension issues at a glance and know exactly how to fix them.
✨ Thinking about upgrading your machine? ✨
We also cover a few of the fantastic overlocker models we stock that feature automatic tension—ideal if you’re after a fuss-free setup with professional results.
At Sew Essential, we stock a huge range of overlockers, sewing machines and coverstitch machines from trusted brands like Baby Lock, Brother, Janome, Husqvarna and Pfaff. Whether you're a beginner or a seasoned sewist, we’re here to help you choose the perfect machine with expert guidance tailored to your needs.
🧵 Got questions or need a hand choosing a new machine? Just get in touch—we’re always happy to help.
Watch now and take the stress out of overlocker tension for good.
00:00 Introduction
00:24 Overlocker thread tension problems
03:19 Overlocker thread tension settings
06:07 Balanced overlock stitch
07:43 Lower looper tight
08:59 Lower looper loose
09:59 Upper looper tight
10:53 Upper looper loose
11:35 Right needle tight
12:26 Right needle loose
13:04 Left needle tight
14:03 Left needle loose
15:12 Conclusion