: Check for straightness and surface defects. If the piece is excessively long, it may need to be straightened before machining to avoid excessive run-out.
: Verify that the long end of the piece (if extending through the headstock) is properly guarded or supported to prevent "whip," which can be extremely dangerous at high RPMs. Common Long-Piece Projects 55524.rar
: Ensure the piece is accurately supported between centers using a live center in the tailstock. This provides the necessary rigid support for the outboard end. : Check for straightness and surface defects