Technical articles
FANUC option functions, backup files, certification messages and application conditions.
Using 30i-B involute interpolation, an original derivation separates base-circle radius, distance from the center and local curvature radius. Acceleration calculations at three positions explain why speed limits become more restrictive near the base circle.
Read article →Commanded position, actual position and following error are separated for 30i-A torque limit skip. Two ideal records of the same contact point show why a recorded position difference cannot directly establish a change in workpiece dimensions.
Read article →An assumed 100-millisecond execution window compares ZONCE, ZEDGE and an initially true condition under 30i-A real-time macro rules. One-shot waiting lifetime and detection of short pulses are separate issues.
Read article →The angular-axis transformation in the 16i/18i/20i/21i-A connection manual is used to calculate travel and speed for a 30-degree mechanism. Program-space feed cannot simply be treated as actual feed-axis speed.
Read article →The 15i-MB G06.2 format distinguishes order, weight and knot. An original rational quadratic example with three control points shows how R changes the path and why control points need not lie on the curve.
Read article →The 30i-B Nano Smoothing mechanism infers curves from line segments. Original chord-height and independent error-budget examples distinguish surface smoothness from CAD geometric accuracy, including the limits of diagnosis 5000 and single-block stopping points.
Read article →Original 30i-A definitions explain partial-turn counting in variable-radius spiral and conical interpolation. An original 2.25-turn example with L3 checks radius and height without interpreting the integer L as a count of complete revolutions.
Read article →Within same-generation T-series two-path superimposed control, signed-speed and increment examples separate the two contributions to slave-axis motion. Combined speed limits, block-boundary switching and ordinary synchronization protection are treated distinctly.
Read article →Original 30i-A G54.4 rules relate COMMON and individual setting errors to the table pose during measurement. An original planar counterexample shows the direction error caused by mixing references and distinguishes this operation from adding a common workpiece zero offset.
Read article →Within the 0i-F G68.2 P1 RPY format, original Q123 and Q321 vector calculations demonstrate noncommutative spatial rotations. The article shows how to check a postprocessor’s matrices, feature normal and in-plane directions.
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