Contents
- Index
- Previous
- Next
G4 Dwell
This function is used when NC code is created manually.
To understand the usefulness of the Dwell command, consider this scenario: a groove, the exact width of the tool, is required. The tool cuts to the correct depth with a G1 command. If, when it reaches the correct depth, it immediately retracts rapidly with a G0 command, the bottom of the groove will not be circular. The tool needs to pause at full depth for slightly more than one revolution of the work before retracting to ensure that the full circumference of the groove is cut. A dwell of appropriate length will effect the necessary pause.
Command sequence example:
N50 G1 X10 Z-20 F32 'cut the groove
N60 G4 X0.03 'dwell for 0.03 sec, slightly more than one spindle revolution at 2400rpm
N70 G0 X15 Z-20 'retract from the groove
Cutting Wide Grooves
G86 Grooving Cycle
Plunge and Parting Tool Widths