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NEMA23 Stepper Assembly

Insert the NEMA23 assembly through the hole in the Z top plate as shown

Make sure the stepper motor wiring / connector faces towards the back of the X-axis gantry

HTD3M Drive Pulley - 6.35mm Bore

Align the HTD3M pulley on the NEMA23 shaft so that it is level with the HTD3M pulley on the ball screw

If the drive pulley does not easily slide on to the NEMA23 shaft, check that both grub screws on the pulley are clear of the bore

Fasten both 2.5mm grub screws to secure the drive pulley to the ball screw

Verify the both HTD3M drive pulleys are still aligned. Adjust the position of the NEMA23 pulley if required

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