Program a machine that applies acid to precision-etch metal and plastic.
Tends machine that joins sheets of veneer with gummed-paper tape: Places pieces of matched veneer or veneer strips edge to edge between machine rollers. Lowers feed rollers that draw veneer through machine and apply moistened tape. Raises feed roller when taping is complete. Replaces reels of tape on spindle and threads tape through machine. Pours water into dispenser. Moves lever or turns handwheel to regulate speed of machine or to set pressure of feed roller according to thickness of veneer. May tend machine that joins sheets of veneer with gummed thread rather than tape.