Funny you should ask. I'm now in the process of making a king quilt on my Janome 9000. I'm using the quilt-as-you-go method as seen on a u/t from The Gourmet Quilter (Tip #74). I'm happy with the way it's coming together. It's a scrappy and I'm piecing and quilting one block at a time, then sewing the blocks together into strips/rows. When the rows are ready to be sewn together all I need to do is add the binding. All done!! Of course, using the walking foot is a must.

I have quilted all sizes up to a king size quilt on my home machine before I got my long arm. I didn't have a walking foot yet either. Oddly enough, I got the walking foot for that machine close to the same time I bought the long arm. I just rolled the quilt from the outside edges in toward the center and quilted my way out.

I have done queen and king sized quilts on my DM, it isn't all that hard once you learn how to puddle your fabric. Like anything anything else you will get better with pactice, but it can be done and is very rewarding

I have quilted a couple of queen size on my Bernina 430. It is pretty tight, but doable. I used a stencil pattern-it seemed easier to have something to follow in such a tight space.

Why not do Quilt As You Go? You could google that method and find the right one for you. Hope this helps. I quilt on my home machine too as can't afford to pay a long armer.

sewmama, you have my dream machine that I'm STILL saving for, it might take me years but I WILL have one :D

Sew Krazy Girl I am doing the exact same thing, putting boarders on now, it's time consuming but it's turning out good I'm doing a queen size on my DMS, just taking a break from cutting the 1 & 2" strips.

I use the QAYG......Look up Ditter 43 . 8-22-10. I love making a quilt this way. You don't have all that bulk. I just finished one for a Graduation Gift. Plus, when it's all together, you just put on binding and it's done!!
best of luck

I am working on a twin size and I'm doing it in stages. I take my dsm out of its cabinet and put it on my dining table so I have a large enough area for the quilt. When I have to stop I put my machine back, and take the quilt off the table. Then get it out again next time I quilt. I had read somewhere to also take breaks so as to not over heat the machine.

This is a good class on Craftsy: Quilting Big Projects on a Small Machine by Ann Petersen.