I just got most of my parts setup and put together. The issue I am running into right now is that the Z axis makes a noise like a rapid clicking or grinding noise when it is going up the Z axis. If I apply some pressure and push on it this noise goes a way for the most part. When the Z is lowering it does not make any noise. I have tried loosening some of the bearings thinking this is the issue but it has not helped. I have checked to make sure everything is square and as far as I can tell it is. I put some wd40 on the conduits just to check if that was the issue but that did not help. Any one have any ideas or seen this before?