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The precision measurement tools website is a comprehensive resource for injection mold makers, tool and die makers and precision machining professionals. Any technical person who works in the metalworking trades uses these tools and can appreciate their role.
The website covers many of the main tools used in manufacturing today. In fact, most of the tools have remained basically unchanged since their invention. This attests to the fundamental soundness of the invention, as well as the simplicity of the actual process of inspection and measurement.
The tools covered include:
- Granite surface plates
- Precision micrometers
- Dial indicators
- Optical comparators
- Gage blocks
- Gage pins
- Coordinate measuring machines
With the exception of the coordinate measuring machine, or CMM, and the optical comparator, these amazing tools have been in use for many, many years. Without them, there could be no mass production and society would be dramatically different.
You can learn the basics of how to use and care for these important tools. With proper care and use, they can last a lifetime. Periodic recalibration is required, but otherwise, it is common for a toolmaker to own and use many of these throughout his entire career.
Most of the developments have taken place in Western Europe and the United States. After WWII, Japan became a major contributor as well. Now, with the world experiencing a global economy, it is possible that some components are made in one developing country, some in another, and the assembly done in yet another country.
There has also been a huge influx of low quality tools from Eastern Europe and East Asia. These work well for many applications, but when it comes to high precision, it makes no sense to save money on cheap tooling, while risking inaccurate results.
Some of the machine tools that require the use of precision measurement tools are:
- Jig grinder
- Surface grinder
- Cylindrical grinder
- CNC milling machine and manual milling machine
- Sinker EDM
- Wire EDM
- Manual and CNC lathe
- 5 axis milling machine
- Horizontal milling machine
- Universal milling machine
- Jig borer
There are thousands of types of production machines as well that were manufactured with the use of these tools. All of the various components must be inspected, fitted, and finished to a high degree of accuracy in order to function properly.
Some of the leading manufacturers of precision measuring tools are Starrett, Brown and Sharpe, Mitutoyo, Mahr, Scherr-Tumico, Micro-Vu, Zeiss, Helios, Tesa, Etalon and NSK.
It is a shame that the general public does not have a better appreciation for what it takes to make the things we all use everyday. To make matters worse, the academic world seems to look down upon manufacturing as some type of second class occupation.
Randy Hough has a website http://precisionmeasurementtools.com that talks about the use of dial indicators and more.
"You know Dad, I've been thinkin', one is a lot more than zero!" my son, Thomas, age 5.
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