Targeting Through Holes in Printed Wiring Boards (PWB) – Use of Reference Pins

Targeting Through Holes in Printed Wiring Boards (PWB) – Use of Reference Pins

When using the PC-MET and PWB-MET targeted grinding fixtures from Buehler, it’s necessary to set the total grinding distance from a reference pin on which the sample is mounted to the feature of interest.  In the standard equipment, this distance is set to 0.150” as shown in the diagram. The perfect target is reached by …