Me again, still having issues with Z Axis. Sent video and information to Carbide Support so hopefully they are able to assist further. So frustrating to have new machine having issues in this one area, which prevents any work being done. Today I tried varying belt tension checked set screws and just overall made sure z axis plates were all properly setup. When I jog up and down in the air it has rapid clunking or jumping noise. I filmed video of the top and bottom pulley and do not see any skipping. Must be something internal i think at this point?