OpenLOCK System
"OpenLOCK System for 3D Printable Sci-Fi Terrain"

Design Notes:
The OpenLOCK standard base is available in the FREE download "Get Us the Hell Outa Here".
Get Us the Hell Outa Here "FREE" Download | Modular Sci-Fi Terrain STL – Lv427Designs
We'd like to extend our sincere thanks to Printable Scenery for creating the OpenLOCK system and generously making it freely available to the 3D printing community. Their innovation has helped countless designers and hobbyists build more versatile, modular terrain. Printable Scenery
Lv427-Designs has adapted the original concept into a hollow-frame base, removed unnecessary tabs to reduce the amount of clipping required, and opened the bottom for quick and easy access to the connectors.
This base is compatible with 95% of our rooms and corridors. We'll continue expanding the collection by creating bases for our more unique oddly shaped designs over time. If there's a specific design you'd like to see supported, please don't hesitate to contact us at: sales@lv427-designs.com
Pictures and video are on the way... stay tuned...
Instructions:
- Print the OpenLOCK base with NO SUPPORTS with the opening facing upward.
- If you printed our designs at a different scale, be sure to print the Open-LOCK bases and clips at the same scale for a proper fit.
- Print the OpenLOCK clips. Use the standard clip for connecting rooms and the +1 mm longer clip when attaching corridors.
- Print your terrain piece with NO SUPPORTS. We recommend printing small rooms and corridors first.
- Lightly sand the top of the base and the bottom of the terrain piece.
- Ensure the open side faces downward so glue can be applied across the entire base.
- Apply glue, align the parts, and press together for 1–2 minutes.
- Use 1, 2, or 3 OpenLOCK clips as needed, we recommend using just 1 clip.
- When attaching one design to another, insert the OpenLOCK clips from one direction only, then complete that small row. Repeat the process for the next row, then connect the two completed rows together. Avoid trying to connect or disconnect a design using clips from two directions at the same time. Not every design needs to be clipped to an adjacent piece.
For fans who prefer a more permanent setup, the base and OpenLOCK clips can be glued to your terrain pieces, medium to large sized rooms, providing added strength and stability to the overall design.
For an inexpensive and reliable adhesive, we recommend this glue, commonly available at most dollar stores. "Via chem - fix-all cement - green package."


Picture of AGDITC Open-Lock Supplied by Craig Kulbaba.
AGDITC Notes:
We are in the process of converting all the products for AGDITC designs line. (90% complete) The AGDITC system connects by section. Due to the irregular layout of the original game board and sections switching position according to scenario setup. not every section is designed to connect directly to every other section. The standard 200mm Open-LOCK base is now available in Operations-1.
Any design that uses a standard square base is compatible with the 200 mm Open-Lock Base. This includes Landing Bay Showdown, Colony Landing Pad, Vehicle Cargo Area, Sulaco Mess Hall, Reactor 1, Reactor 2, and APC Chase. Designs with unique or irregular shapes require custom Open-Lock bases, which will be soon included with those models.
Warning for Custom Bases: It is strongly recommended that you test-fit each Open-Lock base to its corresponding section before gluing it to the model. This gives you time to verify the fit and ensure the base is correctly oriented before permanently attaching it.
We are just finishing off with our test group for AGDITC. Next we will send the entire AGDITC Open-Lock package out. Stay Tuned... Updated August 5th, 2026
"I'm currently testing them, and so far I think they are an amazing addition!! The bases printed very quickly, 1 hr per, and fitment has been perfect so far. Attachment works with only 1 clip between boards, I prefer 2 but definitely is not necessary. Separating boards after a game for storage is easy, with so far, no damage or breaking to clips or bases." - Craig Kulbaba
Nostromo & Fate of the Nostromo Notes:
We are just finishing off with our test group for Nostromo and FATE of the Nostromo. Next we will send the entire OpenLOCK package out. Stay Tuned... Updated July 24th, 2026
If you wish an early release for OpenLOCK conversions feel free to contact us at sales@lv427-designs.com.


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