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|  | |  | | | Coffman's Method of Conduit Bending | | | | | SKU:
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Usually ships in 1 business days | | | | | | For the first time, there is a well-organized, comprehensive reference tool for bending conduit - available in both print and CD formats! A trusted and industry-recognized alternative to the currently published material, Coffman's Method of Conduit Bending offers electricians and electrical students a proven way to install conduit using all types of benders. This widely accepted method has saved many electricians time, effort, and money. To familiarize readers with this methodology, the book begins with an introduction to conduit bending and the associated theories. Coverage then progresses to include coverage of three- and four-point saddles, 90 degree bends, and segment bending. With a print version that is small enough to be stored in a tool kit, and an interactive CD for self-paced learning, this promises to be a valuable resource, both in the field and in the classroom. | | | |
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| | Product Details | | Author: | Ronald S. Coffman | | Spiral-bound: | 144 pages | | Publisher: | Delmar Cengage Learning | | Publication Date: | June 02, 2008 | | Language: | English | | ISBN: | 1435402804 | | Product Length: | 8.56 inches | | Product Width: | 6.92 inches | | Product Height: | 0.35 inches | | Product Weight: | 0.62 pounds | | Package Length: | 9.1 inches | | Package Width: | 7.3 inches | | Package Height: | 0.5 inches | | Package Weight: | 0.6 pounds | | Average Customer Rating: |  based on 4 reviews |
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| | Customer Reviews | Average Customer Review: ( 4 customer reviews )
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Most Helpful Customer Reviews
3 of 3 found the following review helpful:
Useful, but engaging. Oct 16, 2010
By LinuxLizard
Coffman's Method is a very well written book on Conduit bending that nearly any electrician in the field can put to use. But it is not applicable to every 'Sparky' out there.
PROS: The calculations work for ALL types of conduit, whether thinwall EMT, IMC, or even Rigid. Once you understand it, you can apply it in many situations where more complicated bends may be needed. It does a great job of breaking down the reasons for the math behind the method and how it can be applied to our trade in a useful manner.
CONS: For most electricians (especially working with simple runs of EMT) this method will be cumbersome and time-consuming. I would stick with the standard simple method UNLESS you have special cases such as parallel runs that need to look perfectly uniform when changing planes. Also, many may find the multiple steps and elementary trigonometry involved to be 'overkill' and time-consuming especially when you need to get a lot of pipe up in the air quickly.
Overall, this resource can be very useful, but for me it is not something I do for every bend. I have successfully used the method for parallel rolling offsets that have to transfer from running vertically across a wall to hanging from the ceiling horizontally. And also used it with special kicks. Other than those unique cases when it is beneficial to sit down and 'do the math', it's much easier for me to stick with the standard hand-bending techniques most of us were taught early on with common angles and multipliers. When I purchased it, I got it at a good price (used, but in nearly new condition) so it was great investment for improving my skills and marketability to contractors.
1 of 1 found the following review helpful:
Theory is great examples have errors Jan 02, 2011
By J. Haller
This book is excellent in terms of a concise explanation of the theory involved in conduit bending. The best explanation I have read so far on the subject. If you go through this text you will have a solid understanding on the subject. What threw me off were the errors in a lot of the example problems. Some are driven by rounding, which are minor, but in the present computer calculator etc age the math can be calculated to a finer precision with little effort. There are instances where numbers that are just plain incorrect are used and that is disturbing. I even created excel spreadsheets of the formulas to verify, and keep my sanity.
 Ready for Math? Oct 11, 2011
By cpospark
This is a COMPLETE explanation of the mathematical method of measuring and bending conduit. Not recommended for those who don't feel completely comfortable handling numbers and formulas.
 Help explain complex bending problems Sep 20, 2010
By D. Pearcy
Mr. Coffman has put a lot of work into this book. The drawings in the book help explain some of the more complex bending problems we face as electricians. I am always looking for a book to help improve my skills and this book is great.
Gary Pearcy
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