Wow! What a sensation this little guy is! I wasn't sure what the inventor's last name was so I just stuck with Pavel. However, Bahtinov Mask really is appropriate.
So... The Amazing Bahtinov Mask it is!
Anyway, I just sent out an email to the folk who wanted a scalable drawing I had down on my first design. I modified the drawing to work a little better for a refractor since those scopes do not have the center obstruction to worry about.
I did make a bit of a blunder though. I had asked folks to send me their aperture sizes instead of the full scope opening. oops
In any event I hope you all find even better and more inventive ways to make, cut, paste, tape, glue (oh, maybe not glue), sew, tack, or otherwise adhere your new Bahtinov Masks to your scope.
A HUGE thanks again to Dennis for first introducing us all to this incredible new focusing aid. And of course, we need to heartily thank the inventor of this awesome design and for his generosity at giving this knowledge to us open source!