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Editing Step 6 —

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Bring all the loose wires together around the RAMPS board.

If in any doubt about the wiring, consult the official RAMPS wiring instructions and diagram shown opposite. The diagram is from http://reprap.org/wiki/RAMPS_1.4#Pre-Fli... (click on the wiring diagram at that link to enlarge).

Note that the diagram is for a conventional printer, not a Delta, so shows 2 Z-motors. It also shows a second extruder and a heated print-bed - just ignore these.

Connect the hot-end fan to the D9 connector on the RAMPS.

Check for the correct polarization; red cable goes into (+), brown cable into (-)!

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