Troubleshooting_Drilling/Routing Performance

3.1 The drilling quality can be affected in several ways, but generally in one of the two following ways:

3.2 Accuracy: The positional accuracy can be affected by various factors like e.g.:
Entrance- and exit-board quality,
Surface of the board (rough or even),
Quality of the tools,
Collet cleanliness and condition.
Number of boards in the stack (stack height).
Spindle condition (vibrational forces)

3.3 Hole quality: The hole quality can be affected by various factors like:
Entrance/Exit board quality.
Tool quality.
PCB quality and type.
Collet condition.
Spindle condition.

Drilling/Routing Performance