Regular maintenance and calibration are key to keeping specimen-preparation equipment delivering consistent results over time. Many labs see shifts in dimensional accuracy or cycle times if maintenance is delayed or calibration is neglected. For example, in tensile-testing systems, calibration of load cells and alignment mechanisms is cited as critical to maintaining valid results.

Typical maintenance and calibration tasks include:

• cleaning and checking tooling and clamping fixtures for wear or damage
• verifying machine alignment, gauge-section tool paths and fixture centering
• checking spindle run-out or chuck concentricity if turning round specimens
• updating software or machine offsets after major material or geometry changes
• scheduling a full calibration of measurement-related components (especially if part of the machine feeds test frames) on a quarterly or annual basis depending on usage