3D Printing

3D printer creates full-color, multiple material prototypes in a single print run

3D printer creates full-color, multiple material prototypes in a single print run
The J750 3D printer from Stratatys can prototype objects in complex shapes, with different textures and materials, and with unprecedented color accuracy
The J750 3D printer from Stratatys can prototype objects in complex shapes, with different textures and materials, and with unprecedented color accuracy
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The J750 can print color gradients too
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The J750 can print color gradients too
The printer can print materials of various hardness, gradients and even transparencies
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The printer can print materials of various hardness, gradients and even transparencies
The Polyjet system allows for prototyping of complex objects in a single print
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The Polyjet system allows for prototyping of complex objects in a single print
The color accuracy and range of available textures can result in incredibly realistic prints
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The color accuracy and range of available textures can result in incredibly realistic prints
The J750 can reportedly print in 360,000 colors
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The J750 can reportedly print in 360,000 colors
According to Stratatys, the J750 can print in full color, with great consistency
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According to Stratatys, the J750 can print in full color, with great consistency
Color gradients can be printed too
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Color gradients can be printed too
The J750 3D printer from Stratasys is about the size of an office photocopier
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The J750 3D printer from Stratasys is about the size of an office photocopier
The J750 3D printer from Stratatys can prototype objects in complex shapes, with different textures and materials, and with unprecedented color accuracy
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The J750 3D printer from Stratatys can prototype objects in complex shapes, with different textures and materials, and with unprecedented color accuracy
View gallery - 9 images

The latest enterprise-grade 3D printer from Stratasys, the J750 model, is reportedly the first that can print objects with photorealistic color accuracy. In addition, like other premium printers from the same company, it can also print in multiple materials to produce parts that are hard or soft, opaque or transparent, for some rather impressive results.

The printer makes use of proprietary "Polyjet" technology, which Stratasys describes as the 3D analogous of inkjet printing. Tiny droplets of a photo-sensitive polymer are dropped on the tray and then illuminated to harden them on the spot. If the shape of the object is complex, including for instance a sudden overhang, the 3D design software automatically adds printed, water-soluble supports that can be easily washed away later.

The J750 is not the first Polyjet printer from Stratasys, but it is the first that can print in five colors – cyan, magenta, yellow, black and white – instead of just three. The addition of white in particular means the printer can now use the CMYK process to derive a broad spectrum of 360,000 accurate color shades. Indeed, the printer can even recreate color gradients and complex patterns such as wood grain, plaid, and so on.

The Polyjet system allows for prototyping of complex objects in a single print
The Polyjet system allows for prototyping of complex objects in a single print

Past 3D printers could also build in color, but print quality and color accuracy would suffer in the process. The J750, on the other hand, can create high-quality prints thanks to an horizontal resolution of 600 dpi and a vertical resolution up to an impressive 1,800 dpi (just 14 microns, or 0.00055 inches, per layer).

What's more, the printer can create composite materials by mixing two or more polymers right in the tray, and changing the polymer's characteristics from rigid to flexible, and from opaque to transparent, all in the same print, depending on what is needed.

The color accuracy and range of available textures can result in incredibly realistic prints
The color accuracy and range of available textures can result in incredibly realistic prints

Build volume is 490 x 390 x 200 mm (19.3 x 15.35 x 7.9 in), and the internal cabinet has room enough for a generous total 152 kg (335 lb) of printing material, which should last for quite a few prints.

The Stratasys J750 is currently being showcased at this year's Annual Manufacturing User Group conference in St. Louis, Missouri, which runs until April 7. The printer is already available for sale, and although Stratasys does not disclose its pricing, it's not likely to be hobbyist-friendly – probably running in the hundreds of thousands of dollars.

You can take a closer look in the promotional video below.

Source: Stratasys

Stratasys J750 3D Printer Introduces One-Stop Realism with Full Colors and Multiple Materials

View gallery - 9 images
1 comment
1 comment
Derek Howe
Wow, that's an impressive printer!