I'm sorry about the quality of these pics. It's been a very rainy day here, which never makes for good photos. I wasn't happy with the video tutorial I had saved. So I searched more than a few to find one I thought was easiest to follow. http://www.michellesrubberroom.com/2009_04_01_archive.html She's even drawn a diagram with measurements to follow along.
Have a great weekend, Jana