Illustrations generated with OpenArt. Narration uses free local Kokoro neural voices. Illustrations are visual aids; the written
lesson carries the explanation.
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Two threads meet
A sewing machine lockstitch interlocks an upper thread and a bobbin thread inside the fabric.
Upper + bobbin
Read both faces
Loops underneath can point to upper-thread threading or tension issues. Check the threading before turning a dial.
Look above and below
Test on a scrap
Use the same fabric layers, needle and thread as the project. Change one setting at a time.
One change at a time
Find the balance
Aim for a neat stitch on both faces with the interlock inside the layers. Follow your machine manual for adjustment.
Balanced stitch
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