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Follow the layout in the PDF file below to wire the switching hotend for your board.
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We recommend installing the relay for reliability. Due to unknown reasons with either firmware or electrical noise, sending a "Pulse=0" command will sometimes cause random movement in the servo. So to power down the servo after each move we use this relay switch instead.
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This step is especially recommended if you are using the Switching Hotend with Klipper Firmware.
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