When do you replace needles?

There are several signs that indicate it's time to replace the needles in an embroidery machine:

1. The needle is bent or dull: A bent or dull needle can cause the thread to break or the fabric to be damaged.

2. The needle is not making a clean, sharp point: If the needle is not making a clean, sharp point, it can cause skipped stitches or poor quality embroidery.

3. The needle is not properly inserted: If the needle is not inserted correctly, it can cause the thread to break or the fabric to be damaged.

4. The needle is the wrong size or type: If the needle is the wrong size or type for the thread or fabric being used, it can cause the thread to break or the fabric to be damaged.

5. Frequent thread breakage: If the thread is breaking frequently, it may be a sign that the needle is dull or damaged and needs to be replaced.

It's generally recommended to replace the needle after every 8-10 hours of use or after a certain number of designs stitched, depending on the needle's condition and the intensity of use. It's always best to refer to the manufacturer's manual or consult a professional for specific recommendations.