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Sewing machine broken needle problem
- Nov 21, 2018 -

1. The needle is blunt, causing the needle bar to deform. (Change the needle, beginners should use the No. 14 needle, its strength and toughness are more durable than the No. 9 and No. 12 needles)

2. Reversing. (Beginners should learn to control the upper wheel by hand to control the reversal so that they can not hang the line, the idler)