Abstract: A trimmer that is operable to cut at least one sheet of paper includes a base configured to support the at least one sheet, a rail extending across at least a portion of the base, and a cutting assembly having a carriage slidably coupled to the rail and a blade positioned on the carriage. The trimmer also includes a blade opposing member coupled to the base adjacent to the rail and an indicator operable to display a usable life status of at least one of the blade and the blade opposing member.

Abstract: A cutting structure for plastic film includes a bracket, a first roller, a second roller, a tachometer, a processor, a monitor and a cutter. The bracket includes a bottom and two sidewalls extending from the bottom along a same direction. The first roller includes a shaft fixed to the sidewalls and a sleeve rotatably sleeving on the shaft. The second roller is pivotally connected to the sidewalls. The tachometer is disposed on one end of the second roller and configured for measuring the rotation speed of the second roller. The processor is configured for reading the rotation speed and further calculating a rotation distance of the second roller. The monitor is configured for displaying the rotation distance. The cutter extends upward from the bottom for cutting the plastic film pulled from the first roller and the second roller.

Abstract: A method for manufacturing includes a machine capable of operating with and without a stock material present and an apparatus responsive to each operation when the stock material is present and unresponsive when the stock material is absent.