Many times a job can be simple enough but the challenge can be to locate the piece part and then hold it in position with clamps of some kind.



The screws in the red circle are horizontal pushers to push the workpiece against the 1/4" dowel pins parellel to the "Y" axis. The 1/2" dowels and the shaft going through the bearing makes the workpiece parallel to the "X" axis.
Thought this maybe of interest.
Jim