Figure 1. G87 Cycle 35

Figure 2. Two Cutter Radius Compensation Methods 74

Figure 3. Cutter Radius Compensation Entry Moves 76

Figure 4. Simpler Cutter Radius Compensation Entry Move 78

Figure 5. Cutter Radius Compensation Entry Moves 80

Figure 6. Two Cutter Radius Compensation Errors 81

Figure 7. First Cutter Radius Compensation Move - Straight 82

Figure 8. First Cutter Radius Compensation Move - Arc 83

Figure 9. Interpreter Interfaces 88

Figure 10. Software 90

Figure 11. Interpreter-do-it Function Call Hierarchy 96

Figure 12. Interpreter Function Call Hierarchy
(from rs274_ngc read) 97

Figure 13. Interpreter Function Call Hierarchy
(from read_real_value) 98

Figure 14. Interpreter Function Call Hierarchy
(from rs274ngc_execute) 99

Figure 15. Interpreter Function Call Hierarchy
(from convert_motion) 100

Figure 16. SAI Driver Function Call Hierarchy 101