Categories: Geometric Measurement,Machinery Maintenance,Other Topics

The Fixturlaser Level – a digital two axis high precision machinists’ level

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By on August 31, 2020

The Fixturlaser Level is a high precision two axis digital machinist level. The primary application is base leveling. The Fixturlaser Level offers the following advantages:

  • Two axis live measurement
  • Calibrated to earth level out of the box
  • No line of sight required
  • Immediate feedback with live values
  • Documentation of results
  • Simple to qualify to other fixtures

Here is an example measurement along the length of an alignment demonstrator:

Place the Level on the base. Note the alpha and beta direction. In our example alpha is along the base length. Turn on the Level and it will connect to the NXA via Bluetooth. A solid blue light indicates it is connected.


Select the Level icon from Fixturlaser NXA main screen (bottom row, 2nd icon from the left – the sensor icon with the two crossed lines).

Level in the alpha and beta direction is displayed.

The alpha direction (along the base length) indicates 8.3/1000. 8.3/1000 = 8.3 mils/inch.

8.3/1000 = .0083/1 = 8.3 mils/1 inch

If you want mils/foot multiply by 12. (8.3 x 12 = 99.6 mils/foot)

Calculate the correction needed in the alpha direction. This base is 24 inches long, so the correction is to add 200 mils of shim. (8.3 mils/inch x 24 inches = 199.2 mils) In this example, the shims are added to the left since that is the low side.

If the base is large you can take the NXA over to your correction points and watch the numbers update as you make the corrections. No need to be looking at the bubble on a level.

Updated real time display after the shims were added. The base has been leveled to .3 mils/inch (3.6 mils/foot) along its length in the alpha direction. We would also correct the base in the beta direction.

Additional Resources

Fixturlaser Level training video

Blog post – Fixturlaser Level

Blog post – Defining level versus flat

About the Author

Mike Keohane has been involved in machinery reliability since 1985. He started as a field service engineer for IRD Mechanalysis. Prior to that he was a wireline logger for Schlumberger Well Services. He joined VibrAlign in 1992 and supports clients in Georgia, South Carolina, Alabama and the Florida Panhandle. In addition to precision alignment, he has field experience in vibration analysis, field and shop balancing, oil analysis and ultrasonics. Mike holds a BSME from Michigan State University. Mike and his wife and two children currently live in Peachtree City, GA.

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