Great Idea. Sometimes we need to tighten the bobbin a little. I too have had that problem so.. righty-tighty.. lefty-loosie. Good to remember .Glad it worked out for you Miss Charlie
beautiful good use for the test when my bobbis does that I change the bobbin retherad the machine and it usualey helps last time my was doing this I was having maulti peoblems my mother board was out.my machine has been in the shop for over a week now.
I tried using a new bobbin and it was still happening so I just did the 2 hand towels for my daughter and it worked out its own issues I am so sorry to hear your machine is hospitalized :( I hope it gets well soon and you can be reunited again*