Tug the needle thread slightly ... tension to ensure that it is between one and five. Incorrect tension can cause skipped stitches or broken stitches. If that doesn’t work, rethread the machine ...

If the thread keeps bunching ... Different fabrics require different needles, so make sure you’re using the correct one. (If the machine keeps skipping stitches, there’s a good chance you ...

[Grow Your Own Clothes] had finally found their ideal sewing machine for doing zig-zag stitches ... knowledge faded: a needle adapter with an improved design, some tension stud sprockets ...