Program a machine that applies acid to precision-etch metal and plastic.
Tends machine that removes moisture or wrinkles from felt sheets or hides: Places material between rollers of machine and depresses pedal that rotates lower roller against upper roller to press moisture or smooth wrinkles from material. Releases pedal to separate rollers and stop machine. Removes material from rollers and places material on cart. May move controls to adjust rollers according to thickness of material. May be designated according to section of leather processed as Belly Wringer; Crop-Setting-Out-Machine Operator; or according to type of leather processed as Blue-Leather Setter; Colored-Leather Setter. May sponge water on hides before rolling to ensure uniformity of moisture content and be designated Sponger.