Can you change the needle position on that machine? On my Bernina 1230, I need to move the needle one position to the right of center in order to allow both feed dogs to be positioned under the fabric.
Edit: I just Googled and see that your machine has 14 needle positions (I think).
Aside from moving the needle, I create a physical guide for my fabric to keep my 1/4" seam consistent. Usually I use a strip of adhesive moleskin (widely available in the foot section of pharmacies). Basically I move the needle to the right, place my favorite ruler underneath the presser foot, lower the needle so it is touching just slightly to the right of the 1/4" line on the ruler, make sure the ruler is lined up straight from front to back, then lower the presser foot to keep the ruler in place. I then butt a piece of the moleskin next to the ruler's edge and stick it to the bed of the machine. This makes it easy for me to quickly sew accurate 1/4" seams without straining my eyes.
Last edited by Prism99; 07-21-2012 at 11:26 AM.