Few things make a tabletop battle feel real like walking your miniatures down a corridor you printed yourself. Modular sci-fi terrain, snap-together wall tiles that build out spaceships, bunkers, and space stations, is one of the most satisfying and beginner-friendly ways to put your 3D printer to work.
The idea is simple. Instead of printing one giant, un-storable board, you print a handful of small wall and floor pieces that clip together in different layouts. A design like the sci-fi corridor set recently featured on Adafruit's #3DThursday leans on this approach: circular portal openings accept 20 mm and 40 mm inserts, and the tiles play nicely with the popular OpenForge terrain system, so your pieces mix and match with thousands of other free models.
That modularity is exactly why these sets are great for newcomers. The pieces are usually flat-backed and chunky, so they print with little or no support material, hide small imperfections well, and stack neatly in a shoebox when game night is over. You also get instant gratification: one short print gives you a usable tile, and you build your table one evening at a time.
To get a clean result, start with a single test tile before committing to a whole set. PLA filament is ideal here because it is cheap, easy to print, and rigid enough for terrain. Try a 0.2 mm layer height, 10–15% infill, and two or three perimeters for sturdy walls. Most corridor pieces are designed to sit flat on the bed, so you can often skip supports entirely, which saves plastic and cleanup time. Print slowly on the first layer to lock down adhesion, then let the printer do its thing.
A couple of habits make the hobby even smoother. Dry-fit your first few tiles before printing a full set so you know the clips and portals line up on your machine, since tolerances vary slightly between printers. And because the pieces are simple shapes, they take paint beautifully: a quick coat of primer, a base color, and a dry-brushed edge highlight turns bare gray plastic into a battle-worn starship in minutes.
Ready to build your own space station? Load up a modular terrain file, dial in those settings, and start printing tile by tile. For more beginner-friendly guides, project ideas, and gear to get you rolling, visit flarelab.com and see what your printer can really do.
Frequently asked questions
What is modular 3D-printed terrain?
It is a set of small, interlocking tiles, walls, floors, and corners, that you print individually and clip together into larger scenery. This makes it easy to store, expand, and rearrange for different game layouts.
Do I need supports to print corridor walls?
Usually not. Most modular wall tiles are designed to print flat on the bed with steep or vertical faces, so you can often print support-free. Always check the model's recommended orientation first.
What filament should a beginner use for terrain?
PLA is the best starting point. It is inexpensive, prints at low temperatures, and is rigid enough for tabletop scenery. PETG is a tougher alternative once you are comfortable with your printer.
What does OpenForge compatibility mean?
OpenForge is a widely used open-source terrain standard. When a set is OpenForge-compatible, its tiles line up with a huge library of other free terrain pieces, so you can mix designs from many creators.
Inspired by a modular sci-fi corridor set spotted on Adafruit's #3DThursday, originally shared by designer BellForged on MakerWorld. Read the original feature. Rewritten and expanded by Flarelab.
