Hi guys.
How do I improve the print quality on the sides.

That is z wobble and is cursed by misalignment, bent z screws (or using cheap screws / threaded rod) or flexing of a cheap frame.

If I remember right you have the CTC i3 clone, so just google "CTC z wobble" and you should find all the information you need

Thanks for the info

You might start here:

[www.evernote.com]

It's a detailed review of different z axis printing issues.