I'm posting a link to my problem child parts of the machine
http://flynnquilt.danemcoweb.com/sho...uct/maximizer/
See, the piping has to fit into the black "mazimizers". If you go to the 3rd picture listed, you can see the maximizer up close. The pipe goes into the end cap by fitting nicely onto the recessed side. It has to be a very specific size or it won't fit both over the middle hexagon shape AND under the outer edge.
That side is needed to hold the rods in place so I don't think using the other size would work...