3D Printing (additive manufacturing)industry news and trends

3D Printing Materials: Polyvinyl Alcohol (PVA)

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3D Printing Materials: Polyvinyl Alcohol (PVA)

According to the Polyvinyl Alcohol (PVA),” this is a type of petroleum-based plastic that is water soluble.  It is biodegradable and recyclable, and non-toxic.  It can be extruded at temperatures of 190-210 deg C.  It is relatively expensive compared to materials such as PLA and ABS. Due to its ability to dissolve in water, PVA based material must be stored carefully, away from water and moisture.  For example, it can be stored in sealed bags with silica gel.  Once removed from its packaging PVA can absorb moisture.  
Since PVA is water soluble, it is used for providing support for overhanging portions of objects being 3D printed.  The 3D printer has to be capable of extruding two materials.  A PVA based structure is 3D printed before the overhang portions.  The overhang portions are 3D printed, with support from the PVA based structure.  The final 3D printed object is put in water to let the PVA based support structure dissolve.  After the PVA based support structure dissolves, what remains is the 3D printed object with overhangs”.:)

CoLiDo Technology Making it Easy to Remove Printouts from 3D Printers

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According to the CoLiDo Technology,” it is easy to remove printouts from 3D printers. 3D printers print objects on a build tray.  The filament used for 3D printing objects (for example, PLA filament) is melted for creating the 3D printed objects and cools down on the build tray.  As the melted filament cools down, the generated object sticks firmly to the build tray.  Removing the object can be messy.  It often requires tools like cutters, knives, or hammers.  In the process, the object can break or the build tray can get scratched.

Colido 3D printers address the problem of the melted  filament sticking to the tray.  CoLiDo 3D printers use a patented glass platform that is coated by a material that prevents the melted filament from sticking to it.  This allows the 3D printed object to be removed easily.  CoLiDo printers show the temperature of the build tray so you know if it has cooled down.  Once the tray has cooled down sufficiently, one can remove the object with bare hands.  Any waste remaining on the tray can be wiped clean.

CoLiDo 3D printers and filaments are powered by Print-Rite.  Print-Rite is a leader in the aftermarket printer consumable industry.  Print-Rite is headquartered in Hong Kong and has manufacturing facilities in Zhuhai, Shanghai.  Print-Rite has over 1,800 patents in aftermarket printer consumables. Print-Rite provides information for the CoLiDo brand of 3D printers and related products through CoLiDo.com”.:)

 

http://www.colido.com/

Comparing 3D printout removal of CoLiDo 3D Printers with other 3D Printers

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