Mine is a Nolting and requires a warm up also. I have a regular hand mirror and a hanging LED light that I use to check the back. I'm too old to be crawling under there...if I did, I'd have to call the fire department to extricate me! If you have a store locally that sells parts for appliance repair, check there for great lights and good prices. Those repair guys have to see into small places and they have some great products.

So sorry that happened to you. But it has happened to all of us. I usd to get down underneath my machine to check stitches, but now that area is used for storage, so now I use a light and a hand held mirror, held at an angle close to the stitching, as someone else said. One other thing I do to help me see, which has not been mentioned yet, is to raise the take up bar to the fullest height. That really makes it easy to see from the back of the machine. Just be sure to remember to lower it again before you continue quilting (another mistake I've made). I think we all make every mistake there is to make. I know I do. Some of them more than once. :shock:

Been there, done that! Too many times to count! I have learned to ALWAYS, after quilting a few inches, to reach underneath and FEEL the stitching. You will feel when the tension is bad. And eventually, you'll learn the sound it makes when the bobbin is making a big mess. Sorry it happened to you. Don't know if you got it frogged yet, but if you haven't, roll the quilt and go around the back to frog.........it really is easy when you've really screwed up. BTW -- LOVE the song!