I first looked on Google for a free version, and found lots of pages with instructions, but none of them worked right for me. This one little image was detailed enough to see what was going on, so I followed it!
I don't know whose photo this was, but THANKS to whoever made it!
But I did alter the pattern a bit, to keep it from curling. The photo shows an increase every other round. I changed it to add more increases. Each round that has dcs in a multiple of three, gets only one round instead of two. The other rounds get two each.
one round of 3dc
two rounds of 4dc
two rounds of 5dc
one round of 6dc
two rounds of 7dc
two rounds of 8dc
one round of 9dc
two rounds of 10dc
two rounds of 11dc
Etc. At least it worked for me and my very own Round Ripple is done!
They are right, it gets really boring those last few rounds! But once it's done, it's so pretty, and it's exciting to think about making another.
Here's how to add the extra points. This wasn't my idea either, but I drew the diagram for it, so here you go. This is a smaller version, I mean it doesn't show as many stitches as you really have. When you decide to add points, count the number of stitches you have, and figure out which stitch is the middle. Then follow this pattern using as many rows as you need until the hills and valleys have even numbers of stitches again.
Then I made a ton of ripple dishrags! They're great as hot pads.
The coolest ones are the ones made from the leftover bits from the others!
Increasing every other round was enough, for these.
And a doily using bedspread cotton thread :-)