I have never had any difficulty getting close to the ruler with my chalko liner (the wheel dispenser thingy). I'm not sure why you are having trouble. You may want to consider a chalk line
http://www.google.com/products/catal..._upl=&bav=on.2,or.r_gc.r_pw.&biw=782&bih=266&wrapid=tljp1317317060547014&um=1&ie=UTF-8&tbm=shop&cid=1561418119686705282&sa=X&ei=zKmETvfyC5GDtge5ztwp&sqi=2&ved=0CEsQ8wIwAg#
However, you will need to set up some sort of system or have a helper hold one end of the line when you "snap" it to make your line on the quilt.