Hi there. Well, here are suggestions from my experiences. If you have to cut a long straight line, longer than 1" or so, you may have problems keeping it straight. Unless you have a really steady hand and good experience using a rotary tool or similar. Dremel's are good for small details, rounding things off, drilling small holes, and loads of other uses. Just cutting long straight lines doesn't seem like one of the many uses. You may have better luck using a small table saw or something similar. I am also about to have to do this, so I would like to know what you come up with.