I don't know anything about your machine, but I do know that my Nolting will do the loopy thing if I don't have it threaded properly through the upper tensioner. I'm don't know anything about a "Controller". Is it the same as a Stitch Regulator?
Have you seen this page?
https://sewinginsight.com/reviews/ja...-sd-18-review/
Last edited by Barb in Louisiana; 07-12-2024 at 10:41 AM.