Warped playfield plastics may be flattened by preheating an oven to 250
degrees Fahrenheit. Place the plastics face down on a clean cookie sheet in
the oven. Do not answer the phone or door! Do not be distracted in any
way! Watch the plastics closely. If you leave the plastics in too long
they will turn to a mass of bubbling goo and likely will be irreplaceable.
Prepare several large books near the oven, and open them. When the
plastics have begun to droop, remove them quickly, placing them in
the books, and quickly closing the books. You may want to place several
items on top of the books to ensure that the plastics will be flat. After
about 10 minutes the plastics will have cooled enough to remain flat. If
you choose to use something other than a book, be sure to use something that
is completely smooth, otherwise you will end up with texture imprinted on
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