ABS Filament

Taken from Wikipedia;

ABS is derived from acrylonitrile, butadiene, and styrene. Acrylonitrile is a synthetic monomer produced from propylene and ammonia; butadiene is a petroleum hydrocarbon obtained from the C4 fraction of steam cracking; styrene monomer is made by dehydrogenation of ethyl benzene — a hydrocarbon obtained in the reaction of ethylene and benzene. Neatly put the ABS plastic is derived from Natural Gas and petroleum, hence why it has a bit of an odour and should not be used for items that will hold food or liquids for human consumption and if you are in a small closet when printing then mke sure you have the windows open!

Now that’s enough of the techy stuff, suffice to say that ABS filament is used for the creation of plastic objects using a 3D Desktop printer.
The main qualities, uses and properties of ABS filaments are as follows;
• It is fairly impact resistance and tough.
• Its lightweight and can be extruded (heated and pushed through nozzles) using temperatures available of many desktop 3D printers.
• ABS shrinks more when it cools down, if a hot layer shrinks after being printed on a cool layer, this will create tension in the object and will cause it to warp. The distorted shape can cause it to remove itself partly from the platform and or curl up. There are also other tips and tricks that you can use to get the most out of your filaments.

Taken from internet sources:

ABS requires less force to extrude than PLA as it has a lower coefficient of friction. This makes its extrusion characteristics better for small parts, compared to PLA. The downside of ABS is that it has to be extruded at a higher temperature: anywhere from 215-250 degrees C (420 F to 480 F).
• There has been some evidence that pigment may affect extrusion width. If you are switching plastics a lot, it is a good idea to measure the extrusion before printing too many objects.
• On a cold bed ABS can be printed on masking tape by putting a thin layer of super-glue (cyanoacrylate) on the tape before printing.

A note worth reading.

At the final manufacturing process of 3mm ABS, the hot molten extruded filament line, is water cooled.  During this cooling process a phenomenon known as the “Contraction Principle” occurs.  This is where the outer layers of the filament cool and harden quicker than the inner flow of plastic, when the inner plastic solidifies, a small hole will occur.   This is a normal occurrence, however on occasion the hole can create an elongated bubble which can affect the final print.  If you find when printing with the 3mm ABS that you purchased from 3D FilaPrint, it has been severely impacted by the “contraction Principle” and the quality of your prints are not as you would normally expect, then please do not hesitate to contact us.

The following photos were kindly taken and supplied by Chris T to show the effect of the “contraction principle” in its extreme!

 

 

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