A professional who tends machine to chip out saddle forms in wooden chair seats. Responsibilities include:

• Installs cams and cutterheads according to seat contour specified on work ticket.
• Turns handwheels to set cutterheads for depth of cut.
• Places chair seat on feed belt that pulls it under cutterheads.
• Removes chair seat at discharge end of machine.
• May tend drill that bores holes in scooped seat to permit attachment of chair back.