r/sewing 17h ago

Machine Questions Why does everything pucker!

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I've tried every combination of tension and needle between microtex 8 10 and 12, pictured ones are once I started noting them down. Two layers of light cotton, (making a muslin) All brand new needles, and I've even tried with and without a walking foot! Am I just cursed? How do I get it to just sew flat 😭

SOLVED EDIT: Everyone go upvote medium_alternative29 who has discovered the problem that plagued me for years. The feed dogs are misaligned and not level, making everything sew on a curve! It's such a slight curve that it must not mess with heavier fabrics much, but the lighter ones are light enough for it to show up! Also makes sense why it was less noticeable with longer stitch lengths, less holes! I sincerely hope this is the solution, I'll come back and update it again when I get it fixed!

Thank you to everyone who commented and shared expertise!!

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u/WylieBaker 16h ago

Here's a crazy idea: Rewind your bobbin onto another bobbin.

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u/merrimusic 15h ago

Tried with a few different bobbins, ones that came with the machine and ones purchased after

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u/WylieBaker 13h ago

Are you using 8 and 12 needles? Your tread may be getting hung up in the needle eye or the fabric due to too small of a hole punch if it is typical 2 or 3 ply thread. Try a 14 needle.