slight lean to cylinder print

[Tinker12]

I have printed several hollow cylinders about 3/4 inch dia and 1 and 1/2 inch high. the completed print looks good in
every aspect but there is a very slight lean to the vertical axis (like the leaning tower of pisa). can anyone comment of the possible cause and solution
to this issue.

thanks

[Jimustanguitar]

Check that your u-joints aren't binding or sticking anywhere in their travel. Give them a drop of oil and move them around by hand to make sure that there aren't any tight spots.

[teoman]

Examine the part and try to determine if the bottom yayer is crooked r the whole thing.

Is it crooked upside down?

[teoman]

To determine if your bed is crooked or the arms are printing crooked.