My Juki has a compensating foot that has a stationary part that sits on the machine bed and fabric slides along that edge, can't make a large seam. I bought a 1/4" foot w/ a blade and fabric slides against it for perfect 1/4" seam for my vintage machine. I just bought one for my Babylock, will try it in a few evenings and see if it is what I want. I can just line fabric up with the 1/4" line and make a perfect seam, I am lazy and like things the easy way.