The first time I used a ruler for quilting it was on my Sweet Sixteen Sitdown, and I went out and bought several different ones before even trying one. Subsequently, a ruler foot became available for my Janome DSM, so now I can also use rulers on it when I take it travelling with me and I quilt smaller projects with it. My advice would be to start with just a straight edge ruler with 1/4" lines etched in it for spacing reference in about a 10 or 12 inch size and or possibly a 6" size. There is so much you can do with a straight edge and it does take a bit of practice to get used to holding the ruler and moving the quilt sandwich at the same time. I use a ruler on most of my quilts now to some extent, and I hardly ever pull out all the different ones I have for actual stitching, but have used those more for marking. So before you make the investment in all the different ones, try the straight edge. While it's awesome to be able to also use a ruler on a DSM as well as a midarm or longarm, your space is comparably quite limited and I find my 10" too long sometimes for certain angles and switched to my 6". I have about a 9.5" harp space. I love being able to add ruler work to my quilting! All of this is JMHO, of course! ;o)
Also, make sure you get some stick on grip strip stuff to keep your ruler from sliding! Have fun!
Last edited by Kwiltr; 07-31-2016 at 09:35 PM.