I am quite new to sewing and have just got my very first sewing machine. I have done a few pieces on it but have noticed that after i put some wadding in a project i was doing, the next time i went to sew on a different piece of material, the bottom stitching was very lose and sometimes got caught up in the fabric.
Do i need to change tension on my machine when i change material depth (i.e. if sewing with thicker material)?
How do i stop the bottom stitch from being loose and not stitching properly?
Any help would be greatly appreciated!