Helps on thread breaking constantly
For fixing constant thread breaks, the main checks are:
Thread quality: Old/cheap thread snaps. Use cross-wound polyester for industrials.
Re-thread correctly: Miss one guide and tension goes crazy. Floss the tension discs.
Upper tension: If it’s too tight, back it off to 3-4 and test.
Needle issues: Bent, burred, wrong size, or in backwards. Swap to new 90/14 or 100/16 for heavy fabric.
Burrs: Feel the needle plate hole, hook, and bobbin case. Fine sandpaper can smooth nicks.
Timing: If it still breaks, your hook timing might be off
r/machineporn
u/Fragrant_Davis — 8 days ago