O9010 (Custom thread macro) #1 = #24 (X finish) #2 = #26 (Z finish) #3 = #18 (R – taper) #4 = #9 (F – pitch) G00 X[#1+2.] Z#2 G76 P010060 Q50 R50 G76 X#1 Z#2 R#3 P1000 Q200 F#4 M99

M-codes control machine functions (coolant, spindle, tool changes).

| Variable # | Type | Purpose | |------------|----------------|------------------------------| | #1–#33 | Local | Local to macro call | | #100–#199 | Common (#100) | Volatile, cleared at reset | | #500–#999 | Common (#500) | Non-volatile (saved at power-off) | | #1000+ | System | Read/write system data |