The accuracy of a filament.

As in our previous blog, we discussed consistency in filament is the main area to review when deciding on a filament.

Filament tolerances, roundness and raw materials are not discussed enough but are probably the most important aspects in providing a consistent print.

Filament accuracy is the key given an excellent extruder can work well across many types of filament but they typically don’t work well with changes in filament accuracy.

If you have done all the right calibration testing on your 3D printer and feel that it is the filament then we feel that you should review the below areas if you getting extruder jams or poor quality prints.

  1. Diameter tolerance

Irregular filament diameter affects the flow rate during the filament extrusion, which causes poor surface quality, extruder jams, irregular gaps in-between individual extrusions, and/or excessive overlap, which eventually results in failed 3D prints.

Diameter tolerance is a great metric to measure the quality of a filament-manufacturer.   We believe that it is generally accepted a tolerance of +/-0.05mm is ideal (for 1.75mm).   Any tolerance better than 0.05mm is superior and would be worth testing it yourself to see if those claims are accurate.

Additionally make sure that the suppliers have provided their tolerance levels.

  1. Roundness
    Changes in the roundness of the filament can cause some similar problems with diameter tolerance.   Roundness problems are often referred to how oval (ovality) the filament is, this may cause the filament to twist, extrude unevenly, or jam in your printer.
    It is just as important as diameter tolerance and the same rules basically apply.   We believe that it is generally accepted a tolerance of +/-0.05mm is good.   Any tolerance better than 0.05mm is superior and would be worth testing it yourself to see if those claims are accurate.

Additionally make sure that the suppliers have provided their tolerance levels.

  1. Raw materials

What is the chemical makeup of the filament, what is it made out of?  Does it have any additives, recycled components?
Any foreign (dirty) objects in the filament can clog or jam your extruder.   Also, if the filament has tiny bubbles of air it can cause blobbing and voids in the print surface.

Due to propriety information, It is often hard to get a clear understanding of what is in the filament, from the suppliers.  However, our advice is to break it to see if you can see any inconsistencies (like tiny bubbles or foreign objects).

Torwell provides a quality filament at an affordable price, with local support and warranty, for specifications please see your product page. Just goto www.Torwell3d.com.au or www.dnksystems.com.au

 

 

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