If you have the blocks already made into hexies, you will need to continue with the y-seam way to join the rows. If you want to join your rows with straight seams (Yes, there is a way), you need to create your hexies in halves. The diamond that you cut in half to do this needs seam allowance added. There will be a seam across one diamond.
For each hexie, sew a half diamond to a full diamond twice. Now you have two halves. Do not sew them together. Make all the hexie halves you will need.
Now you need a design wall (floor, bed). Lay out the halves so that they touch their partner half, nesting them together in the combination you like. The outside row will have blanks at every other spot. Make a blank of border to fill in, or if the quilt will have a shaped edge, just leave those for now.
Pin the next row from top to bottom, sewing bottom of left halves to tops of right halves all the way down. Be sure to keep the halves in the right order so that they can find their partner at the end. Sew next row. Lay it next to the first row to be sure each half is next to his own partner. Continue across the quilt. No Y seams. Add top and bottom fill-in pieces as you go. Now sew the rows together, add those edge half pieces and you are finished. Good luck.
Last edited by maviskw; 02-03-2017 at 07:57 AM.