thanks for sharing that, i did not know that

Thank you so much! I am using lightweight cotton fabrics. So, it sounds like I may need lighter thread and the smaller hole needle. I will give it a try. I've never seen such a great explanation (with pics even!).
I appreciate your reply.

I haven't sewn in over 30 years, so I feel like I'm starting all over.

I agree. That was really great information. I've saved it so I can read it again if necessary.

Quilting Vagabond thanks for the link that is a terrific explanation, love the pictures.

tmcarvelli: A lot of people on here rave about the stitch quality of the older machines. If you go to the heading of Vintage Machines there is a lot of information and they can often be found inexpensively at yard sales, auctions or church fundraisers. The older machines are also easy to maintain yourself. I use a Singer Featherweight and a 1967 Stylemate.

thank you Vagabond--excellent article and one I'll remember.

Great article. We can all use that information.

Other than you don't want this particular look, it's a rather neat decorative stitch, don't you think? Check to see that you don't have one of your decorative stitches engaged. Can you get a single hole template for your machine? Having the wider hole template will sometimes let the needle "wobble" when taking a stitch. Do remember to change the template when you decide to zigzag though!!

I've had it happen, didn't know exactly why. All explanations welcome!

If you have a stitch selector (straight, zigzag or decorative) make sure it is in the straight position. I had that same stitch happen to me when I didn't get the dial set completely on straight. It was in between zigzag and straight.

before you change anything else (you have done excellent problem solving exercises, well done) give your fabric a good spray starching, and see that changes anything.

Also always thread the machine with the presser foot up so the tension discs are allowing free flow for the threading process.

Machines with embroidery capabilities generally have a tiny zig when straight stitching.

welcome to the board! What kind of projects are you thinking for marketing?