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StashGridDesign your insert

From your layout to a printed insert.

StashGrid exports the geometry. Your slicer, material, printer settings, and fit checks determine the physical result. Work through these checks before starting a full print.

1. Finish the layout and export

Choose the correct case and layer, arrange supported gear, and inspect the layout in Planning and perspective views. Wait until processing has finished before opening Export. Review the export license, then download the STL.

For Apache 3800, export Upper and Lower separately. Each download represents the currently selected layer, not an assembled pair. The filename identifies the case and layer.

The editable layout stays in this browser. Clearing site data or switching browsers can lose it. Keep the STL for printing, but do not treat it as an editable StashGrid backup: the designer does not currently import it back into the original layout.

2. Check scale and build area

Import the STL into your slicer and check its dimensions in millimetres. STL files do not carry a unit declaration. Avoid scaling the model just to fit the printer: scaling also changes the case outline and gear cutouts.

Apache 3800

Insert model dimensions in millimetres; not the case’s exterior dimensions.
InsertWidth × length × depth
Lower376 × 266 × 53 mm
Upper379 × 269 × 53 mm

Glock Factory Case

Insert model dimensions in millimetres; not the case’s exterior dimensions.
InsertWidth × length × depth
Base Layer266 × 222 × 26 mm

Pelican 1170

Insert model dimensions in millimetres; not the case’s exterior dimensions.
InsertWidth × length × depth
Base Layer271 × 156 × 53 mm

Compare the model with the usable print area, including brims and printer keep-out zones. Try a suitable orientation in the slicer. If it still does not fit, plan a split print rather than reducing the scale.

3. Plan any split and join

Split the insert in your slicer when necessary. Choose seams that leave enough material around cutouts and do not obstruct handles or access to gear. If your slicer offers connectors, check their dimensions and clearances rather than assuming the default joint will fit.

For a slicer-specific walkthrough, see the PrusaSlicer cut-tool documentation.

Test a small joint sample before printing the full insert. Inspect the assembled outline and height; a connection that fits by itself may still change how the insert sits in the case.

4. Choose material and inspect sliced layers

Choose filament using its manufacturer’s technical data for your expected temperature, stiffness, and chemical exposure. StashGrid does not certify a material as heatproof, oil-resistant, or suitable for every storage environment.

Use the printer and filament manufacturer’s settings as a starting point. Review walls, floors, overhangs, bridges, and seams in the slicer preview. Add supports where the chosen orientation and geometry require them; there is no universal support or infill setting for every layout.

Compare material and time estimates before starting. Surface finish options such as ironing are optional slicer decisions, not a requirement for exporting from StashGrid.

5. Test the finished result

Check the printed insert in the empty case, then check the clearance for the exact items you plan to store. Look for rocking, interference, sharp edges, weak walls, and access problems. For layered inserts, check each layer and the stack before closing the case.

Physical print validation is still in progress. If fit is poor, verify dimensions, material behavior, and printer calibration before changing the design. Avoid permanent attachment until you have confirmed the result.

Return to the designer or read the FAQ.