Originally Posted by Moonpi
A walking foot may help you too - some makers refer to them as even feed feet. Sometines I just use a chunky magnet to line everything at 1/4 inch, so i will be less likely to "help" the fabric though. As with a lot of things in quilting, it is a matter of finding out what works best for YOU.
When I took my first quilting class, the teacher cut lengths of 1/4" masking tape about 2 inches long and many layers thick. Then she measured a 1/4" and stuck the tape to out machines. Because they were raised up, it was really easy to make straight seams that were exactly 1/4". When the tape didn't stick anymore, you just removed the bottom layer and remeasured. They also have magnets that you can use to mark any seam width. I am pretty sure I got one at JoAnnes several years ago. Both of these methods can be used with any machine and are inexpensive.