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OpenLOCK Big Boy Cavern Tiles


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The OpenLOCK Big Boy Cavern Tiles set is a conversion of the Big Boy Cavern Tiles and will allow you to make clip together parts using the OpenLOCK system. It is compatible with all of our OpenLOCK products.

Download the Rampage Base Pack for free to get the latest version of the OpenLOCK clip.

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This product is delivered as a .ZIP file pack containing STL files for use on a home 3D Printer.


Across the room, water dripped down a stalactite, and flowed across the floor. Each wet footstep echoed off the walls, and the way ahead lay cloaked in darkness. The only sound apart from these was a distant yowling, like something had been awoken from a not-so-pleasant slumber.  And the sound was getting closer. Fast.




  • 16 April 2018  (version 3.0) Updated to Triplex.


  • Product measurements can be found in the image gallery.

Additional information

File Type

STL files in ZIP folder


10% to 15% for most parts but increase to 20% for thin upright parts such as door frames for added strength

Layer Height

.2 for Normal Quality .1 for High Quality (.2 Layer height is recommended)

Print Volume

100mm x 100mm x 100mm print build volume required


Prints without Supports

2 questions for OpenLOCK Big Boy Cavern Tiles

  1. Digchaos

    Are the regular caverns and the “Big boy caverns” the same thing just cut into more pieces? It almost looks like you get more variation with the smaller version but i’m not sure.

    • Matt Barker

      Yes, you get more variation with the smaller version. they are designed to be combined

  2. Foesmiter (verified owner)

    The high pieces do not look like they go to the edge of the base. It appears it would create a small gap between the walls when next to one another. Even if you put two straight wall pieces together (High C). Is my observation correct? If so, is that by design? It is different from the regular size version.

    • Mike (Printable Scenery)

      Hi Foesmiter,

      The raised wall parts dont fit perfectly snug next to each other, but it is the same as the other cavern tiles in this way. I like to think that because they’re organic structures there will always be tiny gaps between the stalagtites.

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