Greetings contributors and thank you for all the helpful information I have been absorbing while waiting for my CFPro. I am (finally) in assembly and arrived at the Z tramming phase. My Z axis assembly is leaned back toward the rear of the table (with all adjustment screws backed out with less than a full thread engaged). The X carriage assembly has a ton of stiction along its travel and the bearings that ride on top and front of gantry tube feel like they are binding with pronounced wear on the gantry tube. Marks look like they are riding on their edges, rather than their flats. Driving the adjustment screws in would only lean the Z further back, so I have no obvious adjustment options for the Z perpendicularity issue.
As far as the X carriage bearing tightness, I don’t see an adjustment that would lessen their contact. Am I missing something? I have the following possible theories: (1) gantry tube is not square in section (confirmed with an engineers square; it’s not terrible, but there), which might make bearings bind on adjacent tube faces and ; (2) X carriage angle is not square, which would have the same effect and (3) I made a bonehead move and installed something wrong. Anybody see anything obvious?
