Help putting z together

[rja]

I just bought my carve king and started putting everything together. I got to the z plate, everything squared up and the bracket that holds the router put into place but when I mount the top plate that has the stepper motor on it, the threaded rod hits the coupler.. the threaded rod splits the hole of the coupler. I have taken it apart several times, to verify what’s not aligning up. What sounds to be out of alignment?
thanks

[gogogad]

Happen to have pictures? I could compare it to mine with those.

[Derek the Admin]

Do you have the nut block spacer between the Z plate and the antibacklash nut? I think that may solve it for you.