If you are experiencing difficulty in getting the perfect results from your 3D printer, chances are that its extruder nozzle is blocked.
The usual sign of a blocked extruder is that no filament will be printed at all. However, a blocked 3D extruder nozzle is also indicated by non-uniform extrusion and extrusion of filament thinner than the normal.
This hack will help you fix the problem in less than $15. All you need is some acetone, a very thin wire, and a torch.
Here is the video that will walk you through the steps involved:
With this hack, you will have your 3D printer up and running in pristine condition in less than 20 minutes.