I never quilt straight lines THROUGH sashing. Years ago I took a class on how to quilt smashing and saw examples showing how much better soft lines look in that instance . In the entire class only one person out of approx. 50 class members found the look of straight lines THROUGH sashing acceptable.

I'd stitch in the ditch from one side to the other to stabilize. (Go right on past the corner stones) But I would not cross over the sashing with your lines inside the block. It appears that the sashing is narrow enough that putting any kind of design there would be "too much" and not necessary. Wow--you did great as a beginner! I didn't notice any blocks with the points disappearing. Interesting blocks, too. None were easy. Keep up the great work!

I'm definitely one in 50 - I would do the crosshatch straight through the sashing.

Let's see....if you want to get it done and use it <smile> - quilt through the sashing. If you want to really play with the quilting do each block separately. Either way it will be lovely. You did a great job on it.

My first thought was to do straight lines vertical and horizontal so they go thru the cornerstones. If this is not enough quilting, then I would make a 'box' within each block. Most of the blocks have some form of inner square, you could follow those lines or just decide on one size and do it the same in each block. That would depend on how you wanted the back to look - very uniform and with a bit of free form look to it.

I found this example of crosshatching through blocks with a different treatment of sashing. Might give you some ideas:
http://abusybobbin.blogspot.com/2014...ss-blocks.html

I had a hard time finding an example of crosshatching through sashing (although this was often done on vintage quilts), but maybe this example of all-over crosshatching will help you visualize it for your quilt:
http://www.aquiltinglife.com/2016/09...-tutorial.html

And one otherexample I found:
http://quietplay.blogspot.com/2014/0...out-tears.html

Be sure to check out tutorials on crosshatch machine quilting before you start. I strongly advise using a lot of starch. If you will be sewing at a sit-down machine, I would starch the backing with a 1:1 solution of Sta-Flo liquid laundry starch and water (heavy starch application) and would spray starch the top several times before sandwiching. To speed spray starch drying you can place a fan near it. Several layers of spray starch are good. Basically what the starch does is stabilize both the backing fabric and the top so they are much less likely to stretch as you sew. Stretching of the fabric creates puckers when you cross a line of stitching. Starch is definitely your friend when cross-hatching!

Prism99 - Thank you so much for the links. Its just the type of information I needed to have. I really like using Sta-Flo, that is what I use to starch all of my quilting projects. I have it in the house because it is perfect for sizing linen warps when weaving with linen.

What I am seeing in my minds eye is not a very close cross hatching, the blocks are 10" square and I have decided not go through the sashing. I do have some rulers so I might do another design down the sash, or use another machine that has decorative stitches. The game plan is to get it done this weekend. That way I will still have almost 2 weeks before Thanksgiving and the following Friday to finish weaving curtains, since I am hosting Thanksgiving, and be ready to start the Bonnie Hunter mystery.

I want to thank everyone who responded. I love the generosity of the quilters on this board:thumbup:

Whatever you decide, the quilt is beautiful!