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Miter Cutting Performance and Accuracy

Written by: Dean Saari – Director of Engineering

Many variables play a role in achieving accurate parts.

  • Blade – using the correct blade, pitch, and tooth configuration for the material. A dull blade will deviate as it cuts.
  • Feeds and Speeds – overfeeding a blade will cause it to deviate from a straight cutting line.
  • Material – bowed material can prevent it from sitting flat on the saw table. Likewise, bowed material can slide in the vises as they close. Material height plays a major role in accurate miter cuts.
  • Tilt Angle – Properly calibrated tilt and offset settings help assure accurate angle positioning for miter cutting. Angular positioning plays a significant role in achieving accurate miter cut parts.
  • Shuttle Positioning – Marvel utilized a precision calibrated mapping processes in assuring the most accurate shuttle positioning possible within our servo-driven systems. Even still, some inaccuracy remains, however, we always position within our stated positioning accuracy specifications.
  • Installation – As related to the alignment of the saw to the material handling and the pass line, if material snags or drags, it stands a chance of slipping in the vises. Also, if the pass line is not level the material could be off the table when cutting.
  • Environment – Care MUST be taken to achieve accurate miter cut parts. A chip under the material can raise the material enough to cause out of tolerance parts. There must be a balance between the accuracy required and care required to achieve that accuracy. The saw doesn’t have control over many of these variables related to miter cutting accuracy.
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