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OpenLOCK Big Boy Cavern Tiles


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. The files are set to 28mm scale but can be rescaled before printing.


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

1 question for OpenLOCK Big Boy Cavern Tiles

  1. Avatar


    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.

    • Avatar

      Matt Barker

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

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