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Viridis Robotic 3D Printer


Affordable 3D Printing of Sand Casting Molds and Cores.

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The Robotic Additive Manufacturing (RAM) system from EnvisionTEC and Viridis uses a disruptive technology and proprietary print head that is attached to an ABB robotic arm.  The system uses binder jetting technology to print sand molds, mold cores, and investment casting patterns for foundry applications. The binder material is precisely applied to the sand, which is pre-blended with a dry catalyst.  The reaction between the binder material and the sand mixture creates sand molds and cores for both ferrous and nonferrous foundry operations. The system includes easy-to-use Viriprint software to set up the builds using a standard .stl file for the input.


Suitable for Ferrous and Non-ferrous MaterialsSupports a broad range of applications
Simple, Modular DesignEasy to operate
Low maintainance
Unattended OperationReduced labor cost
Low Cost ConsumablesImprove operating efficiencies
Enhance ROI
Proven Industrial Robotic ArmSimple Operation
High reliability
AffordablePrices start at about 1/3 of the price for competing systems

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Accuracy+/ -0.010 in.
Printing Speed1.5 to 2.5 vertical in./hr
Layer Height200-500 microns
System Repeatability30 microns
Strength - ambient drying175 psi
Strength - oven baked at 350 F370 psi
General Parameters
Robotic Arm ManufacturerABB
Movement MethodCartesian
Print Head Width28 in.
Sand Casting Material CompatabilityFerrous
Base SandSilica Sands: GFN Oklahoma and Wedron
Sand GFN65Round or Subangular
Required Floor Space24 x 18 x 15 (h) ft.

Specifications subject to change without notice.

ModelBuild Size (ft)
RAM1231 x 2 x 3 (h)
RAM2242 x 2 x 4 (h)
RAM2362 x 3 x 6 (h)
RAM3363 x 3 x 6 (h)

Customized build sizes are available.  Contact us to discuss.

Specifications subject to change without notice.