Texture (3D Sprint Pro version only)

This material is acrylate-based, so there are additional steps to consider when preparing a print. Being black in color and very shiny in finish, differential shrink, support scaring, rough down-facing surfaces, layering and scuffs/ glove prints will be more apparent than on parts printed in other materials and colors. 

Similar to injection mold tooling practices, adding texture or noise to the part design will hide these sensitivities and produce a much more uniform looking part that requires little finishing.  As a side benefit, it makes the part less tacky and easier to handle when cleaning the parts in their green state which leaves less glove prints and other marks behind.  You can use the Add Noise tool in 3D Sprint to add texture to the part globally or locally.  The default values are 0.0079” (0.2mm) for Granularity and 0.002” (0.05mm) for Range.  The default values make a good texture.  If a lighter texture is desired, decrease the Granularity by small increments.  Going below 0.004” (0.1mm) will make the texture smaller than a layer thickness and may cause it not to show up well.  If a heavier, more distinct texture is desired, use the default Granularity but increase the range in small increments.  A range upward of 0.008” (0.2mm) works well.

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Figure # 10. Add noise UI and image of textured part

 

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Figure # 11. Example of a printed part with texture