Common seam mistakes

Broken needles and two right sleeves.

• Needle breaks: you pulled the fabric. Guide it lightly.
• Tangled threads under the fabric: pull both threads to the back before you start.
• Two right-hand sleeves in a French seam: mark the front of each piece first, e.g. with a pin.

Sources

All checked November 1, 2026. We read these; we did not test the products ourselves.

1. Makyla Creates: How to sew a plain and open seam
2. WeAllSew (Bernina): How to sew a French seam