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Materials  >  3D Printing Materials Summary  >  Full Colour Powder

Full Colour Powder

Full colour capability, hard and brittle similar to porcelain
Sandy, granular surface finishing
Ideal for conceptual design review and display models

Strength ●●●○○ | Detail ●●●○○ | Smoothness ●●○○○ | Flexibility ○○○○○

Full Colour Powder; Full Color Sandstone texture; 3D Printing Architectural & Industrial Design; ZCorp 650 / 3D Systems Projet 660 full colour 3D printing system

Description

  • Powder Based Composite material is composed of fine granular gypsum-based powder
  • 3D printing technology with high resolution up to 650x540 DPI
  • Fastest and most cost effective method to produce full colour presentation models
  • The final product is hard and slightly brittle similar to porcelain, so is fragile (please be careful when handling)
  • Surface has a sandy, granular finishing due to the powder based technology
  • This material allows for maximum design freedom as it does not require additional support material

 


Typical Use

Ideal for conceptual design presentation / mock-up models for design evaluation purposes, which don't need to be functional or exposed to high stress or heat.

 


Technology

3D Systems Projet 660 full colour 3D printing system. The printer builds up the model from bottom to top, layer by layer in 0.1mm thickness. A roller puts a thin layer of powder on a platform and a print head places tiny drops of glue at specific locations, printing a thin layer of your model. The platform lowers and the roller spreads another layer of powder. Coloring is done by combining 4 different pre-colored glues to match the color requested. After the printing process the model is brittle, but is strengthened by a superglue-like finishing liquid.

 

Summary of Full Colour 3D Printing and Post-Processing Steps :-

 

1) Full Colour 3D printing

The full colour 3D printing process uses coloured glue to bond together layers of fine powder material. First, a thin layer of fine powder is placed across the 3D print platform and a print head sprays tiny drops of coloured glue at specific places, printing a thin layer of your model. After each layer, the 3D print platform is lowered and this process is repeated thousands of layers until the object is completed. Colouring is done by combining 4 different pre-coloured glues to match the requested surface color, allowing up to 390,000 different colors to be mixed at a high resolution of 650x540 DPI.

 

2) Post 3D Printing Process - Removing Parts from Powder Block

After the 3D printing process, the 3D printed objects are carefully removed by hand from the excess powder that acts as self-support during the 3D printing process. A portion of the excess powder that was not glued together during the 3D printing process is recycled back into the 3D printer for future use.

 

3) Post 3D Printing Process - Fine Powder Removal

The 3D printed parts are then further cleaned using pressurized air, removing the remaining fine powder after which the 3D printed parts take shape.

 

4) Post 3D Printing Process - Surface Finishing Application

After the 3D printing and fine powder removal processes, the full colour 3D printed parts are still fragile and brittle, but is strengthened by a superglue-like finishing liquid which further solidifies the object and brings out the colors a much more.  And finally the full colour 3D printed objects are given an anti-UV varnish to add further protection from extensive light exposure.

 


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Design specifications

  • Maximum single print size: 380 x 250 x 200 mm (larger parts can be built in pieces and assembled/glued together)
  • Minimum wall / column thickness (supported): 2mm (subject to case-by-case review for structural sufficiency)
  • Minimum wall / column thickness (free standing): 3mm
  • Minimum embossed / engraved details: 1 mm
  • Minimum thickness for readable text: 1 mm
  • Accuracy: Medium accuracy (Note: material is more suitable for design evaluation than testing)

Color

Natural material colour is white / slightly greyish

 


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