Silicone nozzle wiper
thingiverse
To maintain the Teflon surface of a MakerBot Teflon-coated nozzle, use a nozzle wiper like the 1/2 x 1/2 inch silicone edge trim from McMaster (http://www.mcmaster.com/#3482k4). Cut a 10 mm piece and punch a hole in one side before bolting it into the same hole as your brass wire brush on the ABP, or at one of the heated build platform's corners.
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