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News Manufacturing Materials Additive manufacturing

Stratasys debuts versatile multicolour, multimaterial 3D printing

By Jason Ford 5th April 2016 11:26 am 12th April 2016 3:12 pm

Stratasys has unleashed an additive manufacturing machine that quickly produces product-matching designs using up to six print materials and a choice of over 360,000 colours.

This true product-matching sports shoe prototype was produced with full color, smooth surfaces, and a rubber-like sole - all in a single print operation on the Stratasys J750 3D Printer
This true product-matching sports shoe prototype was produced with full colour, smooth surfaces, and a rubber-like sole in a single print operation on the J750

The J750 – a new addition to the Objet Connex series of 3D Printers – allows for the comparatively rapid creation of prototypes that can include a range of material properties in the same part, as well as delivering 3D printing versatility to produce tooling, moulds, jigs and fixtures.

The company adds that the J750 is expected to improve total cost of ownership by eliminating processes such as painting and assembly that add time and cost to the creation of product prototypes.

Prototypes can be produced in an hour or less depending on size and complexity, giving design teams, engineers and marketers the option to consider a greater range of design iterations more quickly in order to hasten product development.

Prior to its release on April 4, 2016 the J750 went into beta testing with a number of companies including Otterbox, a Fort Collins, Colorado based manufacturer of smartphone cases.

Brycen Smith, engineering technician supervisor for OtterBox explained that prior to the J750, it could take up to three days to prepare a phone case because it would have to be painted and assembled to a high specification before being presented to customers and other decision makers in the design process.

He said: “We have over 15 series of cases offered with about six to eight different colour combinations in each series. So that’s a huge timesaving…this machine can now do it in about 30 minutes to an hour. We’re getting several hundred-prototype requests a week that we’re turning around well within 24 hours.

“About five years ago we were outsourcing some of our prototyping which was taking a couple of weeks, [cost] thousands of dollars and who knew where our IP and case information and security was going at that point?

“To bring it in and save it on that security aspect – the potential of knock offs and counterfeits of our designs – is priceless.”

The Stratasys J750 combines full color 3D printing with multiple materials
The Stratasys J750 combines full color 3D printing with multiple materials

The J750 can accommodate build sizes up to 490x390x200mm and operates in three modes including high speed, which uses up to three base resins and achieves a resolution of 27 microns. High quality and high mix modes both use up to six base resins and achieve resolutions of 14 microns and 27 microns respectively.

The machine’s PolyJet Studio software allows users to choose materials, optimise the build and manage print queues with colour textures loaded via Virtual Reality Modelling Language (VRML) files imported from CAD tools.

Featuring a large, six-material capacity, the J750 keeps the most used resins loaded and ready for printing, thereby minimizing stoppages associated with material changeovers. Newly designed print heads means simulated production plastics, like Digital ABS, can be 3D printed in half the time of other Stratasys PolyJet systems.

“An important part of the development effort was related to the print-heads,” explained Ron Ellenbogen, product marketing director, Stratasys. “Our team was focused to optimise the operating procedure to ensure the printing quality and uniformity, which are the hallmark of the PolyJet technology.

Commenting on the release of the J750, Josh Claman, chief business officer, Stratasys said: “The vision from our R&D team was always there: that we needed create a printer where we have a fully realised product coming out of the print which demanded multi-materials, digital material, and digital colour.”

Stratasys J750 3D Printer
Stratasys J750 3D Printer
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Comments
  • Brian and Pat Tucker 6th April 2016 at 11:29 am

    How many jobs will eventually , be lost because of this first(?) use of this technology. Our present economic system takes no notice of the human cost of these technologies, only the returns from investment. The engineering fraternity needs to be part of the need to change our present system to one where the rewards are shared more fairly.
    Refusing to invest in such technologies is no answer. It will release people from dull repetitive labour, perhaps to something more rewarding? We can only hope!

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