⚠️ The non-manifold / floating regions warning can be safely ignored. Still, always check the toolpath preview to make sure the slicer is not doing anything unusual. This warning appears because the files are built from multiple closed meshes, and some of those meshes share coincident triangular faces so the multicolour geometry lines up correctly. That can trigger a non-manifold warning, but slicers handle it cleanly and it should not affect print quality. The floating regions are also intentional. Most are bridges required for the preassembled hinge mechanism, so they do not need supports.   Hey hey ladies and gents, This is a free test file for the foldable mechanism used in my upcoming terrain campaign. More about that HERE! It’s a cropped version of the A piece from the full set, made so you can test the hinge tolerances, the multimaterial setup, and the 90° opening angle on your own printer before jumping into the full release. If that means absolutely nothing to you, check the latest campaign update. Included in this pack: 2 STL files, one for each colour 1 joined 3MF, for easy multimaterial printing or customisation This is a test file based on a final terrain piece, set up so you can judge whether your printer is up to the task. If it prints cleanly, opens properly, and lands at 90°, you’ll know your machine can handle the full set. And if you like how it turns out, don’t throw it away, it’s fully usable on the table as part of your layouts, just... dont go crazy and print like 16 of these, that would look terribly boring. Since moving parts can behave differently depending on machine, material, and slicer settings, this file is here to let you check fit and function before committing to the full release. This file is part of the "Foldable Terrain for 11th Edition: NuGoth" Kickstarter campaign. If you came here from somewhere else, and you’re interested in the full terrain release, give me a follow and keep an eye on the campaign HERE.