Installing Lower Z-Limit Switch

Remove leveling block on the back left side of the bed, by removing two M5x12 screws that attach to the left bed side plate.

Detach the leveling block from the bed side plate with the entire assembly intact (see photo). Set aside leveling block assembly.

Replace the existing leveling block with the supplied Limit Switch Leveling Block (L-shaped version.

Ensure new assembly looks like photo.

Install the M5x45 screw (lightly tighten).

Install the M5x12 screws as shown. Tighten.

Ensure the M5x45 is straight, then tighten against the bed rail.

Place M5x45 screw into outer side of Limit Switch Leveling Block.

Ensure screw head is inserted from bottom, and nut is below leveling block.

Install the Z-limit switch by placing the two M2 screws (from the outside) through the side plate, white spacer, limit switch, lock washers and nuts provided.

Install small length of shallow panduit to bed side plate.

Connect the red wire to the middle of the limit switch.

Connect the black wire to the pivot end of the limit switch.

Note: Polarity of wiring does not matter for limit switches. The normally open circuit is closed when contact is made.

Route wiring through installed panduit, existing panduit, and through an open grommet in the electrical box.

Connect red and black wires to the Z-max connectors on the Azteeg (red in middle of 3, and black on far right), as shown.

Note: Viki cables are not connected in photo. There is no need to disconnect Viki cables in this procedure.

Close electrical box and panduit.

(see wiki steps - Patrick to add?)

Screw in M5x45 to its upmost position.

Use existing bed leveling procedure to bring bed to just above Z-motors.

Command Z-motors approximately 5mm up above Z motors.

Unscrew M5x45 so that it contacts and trips limit switch.

Home Z axis as per leveling procedure.