See if this works with your machine
Sews a perfect circle or combination of circles using decorative or straight stitches. The Janome Circular attachment has a ruler on it that allows you to sew circles in various sizes.
It works with by taking the place of the cover plate. Simply adjust the pivot pin on the ruler to your chosen radius, place the pivot pin through your fabric, replace the pin cap and start sewing. The Circular Sewing Attachment comes with instructions on how to attach and use it.
Part Number: JAN 202106009
Alternate number: 200304003
Guaranteed to fit because it is a part.