Ditto what redmadder said. You can go online and check out the rules for luggage. I would make sure that any part such as needles, feet, are packaged and put away or put in Ziploc and tape to machine. For the large knobs/wheels you can fold cardboard or use Styrofoam to cover those. I say cardboard because they will take apart the Styrofoam. It's white and is dense. The cardboard you can fold just right and use the clear shipping tape so what is being protected is visible. Once they take it apart they don't care how they put it back together.i always use clear shipping/mailing tape. It's strong. many of those inspectors like redmadder said are cocky and obnoxious. You might be able to purchase a box that folds and unfolds at an office supply store. Worth a look.