Brunson Instrument Company

The Rock Pile: A Blog for Metrology Enthusiasts

How often do you change the oil in your laser tracker?

Jim Vaughan
By Jim Vaughan on Feb 4, 2019 3:37:18 PM
A laser tracker provides the ultimate in measurement accuracy. Portable and practical for use in the field, they help many industries ensure quality, safety and efficiency.

However, from time to time, even precise equipment needs verification to ensure that it is still performing within specifications set by the manufacturer (known as MPEs, or Maximum Permissible Errors).

This is exactly why the United States Air Force (AFMetcal) asked NIST to develop an Interim Field Test for laser trackers. That standard became known as IR-8016, the NIST Field Test.

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Would you drive a Ferrari on bald tires?

Jim Vaughan
By Jim Vaughan on Jan 18, 2019 3:22:30 PM

Then why make the same mistake with your Laser Tracker?

Most of us have heard the proverb that ends, "For want of a battle the kingdom was lost. And all for the want of a horseshoe nail." While most companies have moved beyond horseshoes to the high-tech realms of lasers, the failure of the most inconsequential-seeming part of your equipment can destroy your entire measurement operation.

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How to use Simple Geometry to Align Complex Machines – Part 2

Matt Settle
By Matt Settle on Feb 25, 2016 9:20:36 AM

Proper alignment is a core requirement for industrial processing equipment. In this blog series, we are learning to speak the "language" of machine geometry to bridge the communication gap between machinists and metrologists. By representing components as geometric entities, we clarify the alignment requirements and define which instrument is best suited for the task. 

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Understanding Machine Geometry and Alignment

Matt Settle
By Matt Settle on Sep 25, 2015 10:30:00 AM

 I have a German friend who tells me that a number of local dialects are spoken across his country. These German dialects vary enough that communication problems sometimes happen. So when people from different areas find themselves having a hard time understanding each other, he says they switch to “High German”, which everyone is taught in school from an early age. This puts them on a common ground for communication.

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Part Three of our Sawmill Alignment Solution Series

Brent Grisamore
By Brent Grisamore on Jun 19, 2014 11:33:00 AM

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Over the last couple of years, we have worked closely with respected sawmill industry consultant and alignment specialists, looking at the challenges of common machine center alignments in sawmills. This includes aligning chip-n-saw lines, gang & board edgers, overhead endoggers, sharp chains, head rigs, track and rails, band mills, sash gangs, horizontal resaws, planers, trimmers and others, in primary and secondary breakdowns.

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Brunson Training is a Continued Tradition

Deighton Brunson
By Deighton Brunson on Jun 12, 2014 2:58:00 PM

My grandfather was obsessed with several things during his lifetime. One obsession was any wild game whose habitat included the land, sea, or air. Another was the quality of his products. He told me one time that if I cheapened the instruments after he was gone, he would come back to haunt me. Another of his obsessions, and not the least, was ensuring the success of his customers. He truly was less concerned about selling products than he was about making sure people knew how to use them after they were purchased. It is somewhat sad that today’s culture, which is oversaturated with hyperbole, will probably cause people to doubt what I am saying. But I kid you not, that’s how he was.

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Part Two of our Sawmill Alignment Solution Series

Brent Grisamore
By Brent Grisamore on Jun 5, 2014 8:39:00 AM
sawmill_blog_art2

As previously discussed in our blog, we have found that sawmills of all sizes use piano wire, feeler gauges, mechanical levels, dial indicators and plumb bobs to perform critical machine alignments. It is not unusual to find outside service providers using some form of laser alignment device in a mill, but generally these systems are not owned by the mill.  We have seen sawmills using outside alignment technicians as frequently as once a quarter, while still pulling wire between visits.

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Part One of our Sawmill Alignment Solution Series

Brent Grisamore
By Brent Grisamore on May 16, 2014 11:14:00 AM

sawmill_blog_art

While traveling into sawmills in the United States and Canada over the past few years, we at Brunson Instrument Company saw an unfulfilled need in the area of machine center alignment. Most sawmills whether small or large, producing anywhere from 25 mbf (25 thousand board feet annually) to 125 mbf and greater were still practicing old mechanical methods of lining up key machine centers. Using piano wire, dial indicators, feeler gauges and mechanical levels was more common than utilizing a highly accurate, repeatable instrument for important measurements.

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About the blog

The Rock Pile is a blog designed to be a platform for collaborative exploration in the field of metrology. You can expect to explore new Brunson products, hear from industry professionals invited to be contributing editors, and gain insight from customers who use Brunson products. So if you are one of the chosen few people who understand that Metrology is not a study of the weather, please join us here.