Rich,

The crate the machine was shipped was jarred fairly hard at least once and was broken in a couple places. As far as the machine, more than half the bolts had worked loose (vibration during shipping I guess). Because of this, the Z axis assembly had worked loose and was moving freely a couple inches along the Y axis. Also, the linear slides on the Z assembly were coming into contact with the cross members of the Y axis. I was able to loosen up the assembly and get it back into the proper position, so I think this was also related to the machine be jarred during shipping. There was nothing else visible, but given that, maybe something else was damaged too.

Thanks for the advice! I'll take all of that to heart for future tests.

Dave