Slight wobble in x-axis

While waiting for a spare part of my main 3d printer I started using my Vertex Nano, which had been idle for a long time. As a test I sliced the 3D Benchy with Cura and run it on the Nano with PolyMax PLA and the result is much better than expected. Thumb up for this little machine! Next I printed a machine part and I noticed an ever so slight wobble along the X-axis but only in one direction (when facing the machine the wobble is to the left side along the X-axis). Is this within the normal parameters or can I adjust the machine to compensate for this.