Often with this issue, the printer itself isnt the cause of the issue.

While resolving this can take time and effort, it is possible.

This can end up with having something like a screw measured in millimeters.

3D printing header

But the socket youre trying to fit it in is in inches.

When comparing parts that need to fit together.

ensure that the opening is slightly larger than the part supposed to fit in it.

Then because no printer has perfect tolerances, the screw wont fit.

Potentially even if you take a stab at force it.

There are two potential issues here to look for.

The first is if any curved surfaces look jagged or angle.

The second thing to check for is if any circles are actually elongated into ovals.

If any circles are more like ovals, this indicates that one of your printers belts is loose.

This will lead to a misalignment in the X- and Y-axes.