Nov.22, 2012

In time for the Euromold 2012, German RepRap launches the 3D printer PRotos X400. The PRotos X400 is a complete novelty in the low-cost 3D printing segment, which meets the requirements of professional construction and development departments for prototyping as well as small batch production.

With a printing volume of about 56 liters, the PRotos X400 is the biggest 3D printer known to us, based on the RepRap technology.


  • Build Envelope: 400 x 400 x 350 mm
  • Layer thickness: 0.1mm
  • Printing speed: 15 cubic millimeters per second
  • Overall dimension: 650 x 650 x 700 mm (W/D/H)
  • Weight: 35 kg

A layer thickness up to 0.1mm and a printing space of 400 x 400 x 350mm, allow the printing of precise models with a volume up to about 56 liter. Thereby, the PRotos X400 reaches a printing speed as far as 15 cubic millimeters per second, depending on the used material, the resolution and the complexity of the respective printing object. The Direct-Drive-Extruder (1,75mm or 3mm), which is already included as standard, allowing the addition of a second extruder for printing separate support material or two different materials or colors. The filament spools are accommodated nicely in the housing of the printer.

High-quality components were installed, such as low-play drives, as they are used in mechanical engineering. Trapezoidal spindles are used on the z-axis instead of metric threaded spindles, which operates easier, has less backlash and achieves a higher accuracy.

Since only one motor drives the z-axis, the PRotos X400 is less prone to step losses. The guiding rods are ordered vertically to gain printing space. All axes are provided with hardened shafts. All electronic components are compatible to the Open Source RepRap Software, which allows the user to profit from the advancements in that field.

The PRotos X400 has an overall dimension of 65 x 65 x 70 cm (W/D/H), weighs about 35 kg and is assembled on a stable aluminium frame. A housing and a substructure are available as an option. Additionally, the printer can be equipped with a deformation-free ceramics heated bed.

The modular concept of the PRotos X400 allows users an easy access to all mechanical components and offers maximum flexibility for own adaptions and further extensions, i.e. milling spindles.

German RepRap was one of the first German companies to put an own 3D printer based on the Open Source project RepRap on the market. The new PRotos X400 by German RepRap combines the advantages of the Open Source technology with a performance and a quality "Made in Germany" interesting for professional operators in machinery and plant engineering or in electronic industry and for ambitious private users.

For the first time, German RepRap presents the PRotos X400 on the Euromold trade fair (From 27 to 30 November 2012, Frankfurt/M.) on the booth of Alphaform AG (Hall 11, E55).

The PRotos X400 kit will be introduced for a price of 1,589 € excl. VAT, valid for orders at Euromold or online two weeks after, until Dec. 15, 2012.


Image credit / Source: German RepRap

Posted in 3D Printers


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Safwan al husseini wrote at 3/15/2013 2:20:48 PM:

Hello I am interested to get one or two or maybe more of these beauties please direct me .

ys lam wrote at 2/11/2013 5:37:36 PM:

dear sirs, we would like to order one sample and see if it can be sold in hk and china a large quantity of your printer. please send us as much info as possible for our study and potential business. best regards, ys lam company: okia optical company ltd. hong kong email:

Roel wrote at 12/3/2012 11:09:16 PM:

As far as i know its the biggest printer for its price. I don't need THE biggest, but this machine offers me a lot more disigning freedom compared to the 20x20x20 printers. Thank you for the information

Alfred wrote at 11/30/2012 12:07:30 PM:

Roel, yes the price will go up by 10% to 15% after December 15th. We shell announce the regular list price in about 10 days.

Alfred wrote at 11/30/2012 11:33:47 AM:

We were not aware of your printer beeing that large, that is why we wrote in our press release - largest printer known to us. 3ders titled it beeing the largest printer. If you insist I'll ask to 3ders to change the title to large instead of largest. Nevertheless, we think our printer is rather large compared with what you can buy today on the market.

Roel wrote at 11/29/2012 10:01:43 PM:

The PRotos X400 kit will be introduced for a price of 1,589 € excl. VAT, valid for orders at Euromold or online two weeks after, until Dec. 15, 2012. Does this mean that this machine will cost 1,589 until 15 dec and then the price goes up? Please let me know. Thanks

Kris wrote at 11/27/2012 10:45:24 PM:

WOOF, The University of Washington's 3D print club built a much larger 3D printer earlier this year. "Big Red" was used to print a single person boat that was then paddled across Green Lake.

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