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For the last two years, Andrey Rudenko has been 3D printing a concrete castle in in his yard, layer by layer. Now, his castle is finally finished.

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Andrey shared pictures of his process over the past two years to mixed reactions from the 3d printing community. While some may have thought he was headed off the deep end, many were enthralled by his progress and eagerly anticipating each update.

His printer is completely custom built and able to spit out concrete reliably thanks to tons of trial and error. His current settings give him layers that are 10mm tall by 30mm wide. He mixes his own concrete to make sure that it is the exact consistency he needs to avoid clogging his print head.

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As you can see in these pictures, it looks like it works just like your standard desktop printer, though occasionally he has been adding a bit of rebar to help reinforce the structure. He says that the next time it would be nice to print all of the pieces in place because moving the turret bits that he printed elsewhere was very difficult.

A new era of architecture is inevitable, and I’m excited to see where the next few years will lead in terms of construction and design. I have previously been sure I could print homes, but having finished the castle, I now have proof that the technology is ready.

As he completed this project he also finally put up a website to show off his machine and hopefully connect with architects who would like to collaborate.

Caleb Kraft

Caleb Kraft

Community Editor for Make:
I get ridiculously excited seeing people make things. I just want to revel in the creativity of the masses! My favorite thing in the world is sharing the hard work of a maker.

I’d always love to hear about what you’re making, so send me an email any time at caleb@makermedia.com


  • Daniel Fleck

    As a note, this is considered mortar, not concrete as there is no course aggregate. Yeah, we’ll see how durable this ends up being… Most cement based materials do not stand up well to being placed in thin layers, they cure better in monolithic blocks. I’m sure he used rebar to tie it together, but it’ll be interesting to see how cracking develops in this structure.

    • RRiggs

      You can see in the photos that he used some minor supports. That being said, this is an amazing proof of concept. Even better, it’s the kind of thing that makes people think more broadly about 3D printing applications. The choice of a castle was entirely appropriate for this as well.

      • Avatar1337

        This is not the first time concrete has been 3D printed. This video was from 2012

        He probably saw it and wanted to do the same

  • Scott Tuttle

    funny all you ever see of the printer is the head

  • http://www.arcelikbuzdolabiservisi.net/ hakn
    • Toy Pupanbai

      ATTACK!

  • http://anasthassia.wordpress.com Anasthassia Murillo

    Reblogged this on Nihil Sine Deo and commented:
    Es increíble todo lo que ya se puede crear con la impresión en tercera dimensión.
    Desde un pequeño adorno para la casa, hasta una casa, castillo, completa.
    Definitivamente, hemos dado un paso hacia… ¡otra dimensión!

  • Ryan Coleman

    Is it standard here to post something and forget one of the W’s of journalism? Where? Minnesota!

  • Betty Eyer

    wonder what the building codes think of this?

  • pmshah

    If this is of any interest to readers, here is my 2 bit worth.

    I read an article some 50 years ago on a concrete mix here in India. The situation was a dicey one. They were digging a tunnel for railways where substantial amount of water was seeping through not allowing the normal process of gunniting to work as it would simply wash away. They came up with some kind of a mix that would set in under 3-4 seconds upon application. They used some kind of modified gun that mixed the components almost at the exit end of the gun. Once they had this layer in place and set they could subsequently use the conventional concrete mix and methods to complete the construction.

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