Question about Bernina Artista 180
I have been trying to embroidery and all of a sudden my machinge is knotting and bunching on the back side of the design. From the top it looks great but when you take the hoop out the back is horrible. What can I do? This is very frustrating.
Knotting or looping on the bottom is most likely from not enough upper thread tension or way to much bobbin thread tension.
When you thread your machine, make sure the thread goes inside the second thread guide where the thread comes down in front of your machine. The presser foot must be in the up position for that guide to open and allow the thread to correctly "seat" in that guide.
Try this...Before you thread the needle, pull on the thread. With the foot in the up position there should not be any tension at all...lower the foot and you should have to tug slightly on the thread to get it to move. If lowering the foot does not increase your upper thread tension then you are not in the thread guide correctly or you have a mechanical problem with the upper thread tensioner.
One last thing to check. You can get a wax build up or lint packed in the thread tension guide. This is a common problem. Run a Q-tip through the guide and clean it out. If that guide gets built up with wax or lint it will not clamp down on the upper thread and you will not have the correct tension.
With the bobbin case threaded, pull out the thread. It should not be super tight or loose. It should be like pulling Scotch tape off a roll as far as tension goes.
Get your upper and lower thread tensions set up correctly and your problem will be solved.
Good luck, bushvideo
Posted on Sep 27, 2008
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