How to clean the hotend (Sigma Series)

Keeping the hotends clean is crucial in obtaining quality prints









Follow the steps on the video below to clean the hotends.


Be careful when pulling the filament from the hotend to prevent any possible damage to the printing head


Note: It is recommended to clean the hotend periodically and, most importantly, every time you switch materials. Ideally, use a piece of nylon filament to perform this operation.


Don't forget to keep the tip of the nozzle clean to prevent model imperfections and material mixing.

You can heat the hotend and use a piece of paper to remove the fused material remains.




Forum community 

Need more tips? Check out our forum community for more info.


It's important to keep your printer in good shape to make the most out of it. In this chart you can find a list of the extruder maintenance procedures and how frequently these should be done. Maintenance Plan.


bcn3d-recycle  Take your e-waste to a certified recycler. Check how we do it in BCN3D.



install shims eng


replace hotend eng


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