61605

Common Causes

• Relief cut geometry extends beyond or intersects with main contour boundaries
• Incorrect nesting order of contour subroutines in CYCLE76, CYCLE77, or CYCLE95 definitions
• Relief cut contour missing required closure or contains open endpoints
• Contour coordinates reference incompatible coordinate systems or datums
• Subroutine call parameters do not match contour definition expectations

Troubleshooting Steps

1. 1Review the active cycle call (CYCLE76, CYCLE77, or CYCLE95) and verify contour subroutine references match their definitions in the program
2. 2Inspect contour geometry in the referenced subroutine: confirm all relief cut elements stay within parent contour boundaries and do not create topology conflicts
3. 3Validate contour closure by checking the final point in the relief cut path returns to or properly terminates relative to the main contour
4. 4Cross-reference coordinate system setup (G54-G59) and work offset assignments used in the contour versus cycle parameters
5. 5Recompile the contour program and simulate the toolpath to identify where the illegal geometry is detected; adjust relief cut definition and re-test