Resources
Online Resources
Illustration- Long tapped holes (A.) require custom tooling and are expensive to make. Instead, design shorter holes tapped from each side (B.). A through drilled hole, but with short threads from each end is also acceptable (C.). If you need to pass a long fastener or part through the threaded hole, consider back boring as shown in D.
Designing Cost Effective Machined Parts
An on-line e-booklet, fully illustrated with numerous examples. Tips on designing machined parts so you get exactly what you want at the lowest possible price. By Joe Osborn, OMW Founder and Adjunct Faculty Member in Metals Technology at the College of Marin.
"Excellent job of the website. I could have used the 'How to Design Inexpensive Parts for Machining' several years ago to help train a few new engineers. You really captured a great deal of knowledge in one place. Nice job!"
-Kevin Urness, Chief Engineer, Lixi, Inc.
"Your article on how to design parts for inexpensive machining was GREAT. I just sent the link out to all my coworkers to check out. I thought I knew most of those things, but I learned a thing or two myself..."
-Max Davis, MIT grad and Senior Engineer, Green Mountain Engineering
Other Educational Metalworking Links
National Institute for Metalworking Skills
Standards Organizations
American National Standards Institute
Specialty Metalworking Vendors
2Dye4 Anodizing, Chem Film and Passivation
G&S Tool Wire EDM and Tool & Die