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Direct links to the original Prusa electronics assembly guides: MK3 (B3/R2 design), MK3 (B7/R3 design), MK3S.

Plug in the following connectors:

Heated bed thermistor (has green heat shrink).

Power Panic (black and white wires).

You can now adjust the placement of the cables running along the back of the frame, if necessary, and carefully tighten the zip ties.

With a zip tie, bundle all of the cables, including the LCD cables and the Z motor on the X motor side, together.

Make sure there is no tension on the wires and none are pinched. Do not over-tighten the zip ties as you might damage the wires.

Check that all connectors are properly plugged in and tight.

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