Great Design Guides

Came across this design guide for plastics. Clear and comprehensive.

http://techcenter.lanxess.com/scp/americas/en/docguard/Part_and_Mold_Design_Guide.pdf?docId=77015 (updated link)

Other examples that peoples come across would be good to see.

link didnt work for me but managed to find via google, such a great guide http://techcenter.lanxess.com/scp/americas/en/docguard/Part_and_Mold_Design_Guide.pdf?docId=77015

Bayer Material Science puts out the exact same guide (with their name on it) but you need to register on their site to get it.

A second guide by Bayer expands on the concepts behind snap fits for plastics.
http://fab.cba.mit.edu/classes/S62.12/people/vernelle.noel/Plastic_Snap_fit_design.pdf

A better, in my opinion, snap fit guide is circulated by BASF:
http://www2.basf.us//PLASTICSWEB/displayanyfile?id=0901a5e1801499d5
It has a corresponding snap fit calculator: http://www2.basf.us/businesses/plasticportal/pp_techRes_tools_snapfit_en.html

BASF also has a good molding guide:
Design Solutions/General Molding Guidelines: http://www2.basf.us//PLASTICSWEB/displayanyfile?id=0901a5e1801499d2
and a cost calculator:
http://www2.basf.us/businesses/plasticportal/pp_techRes_tools_costcalc_en.html