I just searched for any posts you made using the word "snap" but did not find your message which gave the links. Do you recall what the subject was?

Also, I did find another blog when went into a few more types of joining with 3D prints. I have spent several hours searching for some guidelines, but there are so many returns on the search, it is difficult to filter down to what I am seeking.
http://eikimartinson.com/engineering/3dparts/

-Joe