What exactly is StashGrid?
The StashGrid is a web-based application that lets you create custom, 3D-printable inserts for your firearm cases—currently optimized for the Glock OEM case.
Instead of cutting foam, you start with a digital base plate that fits your case perfectly. You can then select cutouts for specific firearms, magazines, tools, and accessories from our library. The interactive tool allows you to place, move, and rotate these items freely to create your ideal organization layout. Once your design is complete, you simply export the STL file to print the insert on your own 3D printer.
Which case brands do you support?
Currently, the StashGrid is fully optimized for the Glock OEM case. However, we are actively working on expanding our library to include more popular options. The Apache 3800 is next on our roadmap, with additional hard case models to follow soon.
Can I save my design and finish it later?
Yes. The StashGrid automatically saves your progress directly to your browser's local cache. This means you can close the tab or browser window and pick up exactly where you left off the next time you visit the site.
Important Note: Since your design is stored locally on your device and not on a server, clearing your browser's cache or history will delete your current layout. We recommend exporting your STL file if you want a permanent backup of your work.
How do I secure the printed insert into my case?
The StashGrid insert is engineered for a precision friction fit, so it will sit very snugly in the case on its own. However, for the best experience, we recommend using a mild adhesive to secure it to the bottom.
Recommendation: Use a semi-permanent adhesive (such as hot glue or heavy-duty double-sided tape) rather than permanent super glue or epoxy. This ensures your insert stays firmly in place during use but allows you to remove it later if you decide to print a new layout.
What is the advantage of this over Pick-and-Pluck foam?
While foam is the traditional standard, a 3D-printed StashGrid insert offers several distinct advantages, especially for firearms:
• Precision Fit: Hand-cutting the solid foam included with Glock cases is difficult and often results in ragged, inaccurate edges. A 3D-printed insert provides a perfect, computer-generated fit that holds your firearm securely without the "wobble" that develops in foam over time.
• Space Efficiency: Foam requires thick walls between items to maintain its structure. 3D-printed walls can be as thin as 1-2mm while staying rigid, often allowing you to fit more magazines or accessories into the same small case.
• Durability & Hygiene: Gun oil and solvents can degrade foam, causing it to crumble or act as a sponge for moisture (which causes rust). StashGrid inserts are printed in solid plastic, making them oil-resistant, easy to wipe down, and impervious to tearing.
• Cleanliness: Foam eventually breaks down into dust and particles that can get into your firearm's action or optics. A printed insert is clean and maintenance-free.
Do I need tools to assemble the insert?
Generally, no. However, depending on your 3D printer's size, you may need to perform a simple setup step in your slicing software.
Printing Recommendation: We strongly recommend printing the insert flat on the build plate. The total length of the Glock OEM insert is approx 266mm.
Printer Compatibility:
• One-Piece Printing: Large-format printers like the Prusa XL (360mm bed) can print the insert in a single run.
• Requires Cutting (Split Print): Most standard printers have print beds smaller than 266mm. On these machines, you will need to use the "Cut" tool in your slicer software (Bambu Studio or PrusaSlicer).
Tip for Splitting: When using the Cut tool in Bambu Studio or PrusaSlicer, ensure you add Connectors (such as dovetails or snap-in dowels). These create a very tight mechanical fit, meaning you usually do not need glue to hold the two halves together—they simply snap into place.
What are the best slicer settings?
We recommend the following settings for the best balance of strength, aesthetics, and ease of printing:
• Infill: 15% is usually sufficient for these inserts.
• Surface Finish: We highly recommend enabling Ironing for all top surfaces. This smooths out the print lines and gives your insert a professional, high-quality look.
• Supports: Yes, supports are required. Since the insert features overhangs/bridges for the item cutouts, you must enable supports.
Recommendation: Use Tree Supports (organic supports). From our experience, these support the overhangs effectively but are much easier to break away cleanly than standard grid supports.
What license do I receive with my export? What are my rights?
When you export a design from StashGrid, you are granted a Personal Use License.
What this means:
• You Can: Print the file as many times as you like for your own personal use (e.g., for your own gun cases, display, or storage).
• You Can: Share the digital STL file with friends (e.g., sending a layout to a range buddy).
• You Cannot: Sell the digital file or the physical printed inserts.
Important Note on Sharing: If you share the file, the Personal Use restrictions transfer with it. The recipient is bound by the same rules: they may print it for themselves, but they are strictly prohibited from selling the file or the printed product.
Do you offer a printing service for those without a 3D printer?
Currently, StashGrid is a digital design tool focused on providing STL files for you to print at home. We do not sell or ship physical products at this time. However, offering a "Print & Ship" service is on our roadmap for the future.
In the meantime, if you do not have a printer, we recommend sending your exported file to a local makerspace or an online 3D printing service.
Still have questions? Use the feedback button on the designer to send us a message.