Board-game inserts: measuring boxes and sleeved cards

Why the exact edition drives the whole plan

Before designing an insert, identify the box and the items you plan to store: base game, edition, language, expansions, boards, cards, tokens and booklet. These choices define your component list; a generic page cannot provide measurements for your copy.

If you start from an existing file, treat its listed dimensions as values to compare with your own measurements. Record significant differences and decide whether the model can be adjusted without obstructing the lid or access to components. The useful things to 3D print hub offers other practical projects.

Decide which cards will be stored in sleeves and use the products actually planned for your measurements. Record a sleeved card’s dimensions separately from the height of the full stack; these are different measurements for the compartment design.

Measuring the box interior and the usable height

Measure the empty box in several places: base length and width, height to the rim and interior lid depth. If measurements vary, record both the value and location instead of assuming a perfectly regular shape. Then compare the packed components’ total height with the space below the lid.

Record features that intrude into the interior: a lip, reinforcement, curved floor or existing tray you plan to keep. Mark their positions on the box sketch alongside the dimensions so the compartment layout can account for them.

A ruler or tape measure works for large box dimensions; calipers can help with smaller pieces and some thicknesses. Record where each measurement was taken and repeat important ones. This is a design input for your box, without assuming what its publisher may have published.

Sleeved cards: measure the real deck, not the nominal size

Gamegenic’s Standard Card Game Value Pack 200 Matte page lists a 66 × 91 mm sleeve for cards up to 64 × 89 mm, made of polypropylene, with a stated thickness of 100 microns. These are specifications for that particular product. They do not measure your complete stack and do not apply to other sleeves or formats.

The nominal thickness of one sleeve does not give the actual height of a deck. Measure the number of cards and sleeves you plan to store in the intended arrangement, then check the room needed to remove the stack and close the box. Do not use 100 microns as a guaranteed per-card stack height or deck-height formula.

Also measure card width and length in the chosen sleeves, then decide whether the cards will share one stack or be divided by type. Divider position, finger access and storage orientation are layout inputs; check them on a test compartment.

Designing compartments that actually print

For a 0.4 mm nozzle, Prusa’s guide gives 0.45 mm extrusion width and approximate values of about 0.9 mm for two perimeters and 1.35 mm for three; slicer settings can change them. It says walls thinner than one perimeter are not printable. Check the paths generated by your slicer instead of treating a multiple as a strength limit.

Prusa says there is no universal tolerance; its initial value of at least 0.3 mm is for moving parts. A storage well is not automatically a moving assembly. Measure the actual stack, choose clearance suited to handling and check the fit with a test piece rather than adding Prusa’s value as a required allowance.

Prusa recommends a chamfer rather than a bed-facing fillet when finish matters; it does not say that a chamfered well guides cards. You can use a chamfered entrance as a design choice and check that it does not obstruct storage or pickup. Also inspect elephant foot on a test print if the opening starts at the first layer.

Splitting the insert and choosing print orientation

First check whether the full insert fits your printer’s bed and can be oriented as intended. If not, Prusa describes splitting a model into parts to improve placement and reduce supports, with possible gluing and optional alignment pegs. Modules by component type are a design option, not an arrangement required by the sources.

Separate modules may let you reprint one section if a measurement or compartment changes; still check joints and layout inside the box. Prusa says a surface printed directly on the bed is flat and smooth, while a surface printed above supports may look more irregular. Finish depends on orientation and geometry; no perfect finish is guaranteed.

Prusa gives an indicative 45–60° overhang range depending on nozzle and settings, and notes that short horizontal bridges can print without supports. These references do not establish that every hole or notch will be support-free. A through-hole or open notch can be a geometry choice to inspect in the slicer, then clean and test on the part.

Prepare a compartment plan and its labels

Before opening CAD, list the items and quantities in the edition you are storing. For each group, record dimensions, storage orientation and desired access. This sheet helps compare the available volume and identify compartments that need a more precise measurement.

On a sketch, place card stacks, boards, tokens and booklet, marking dividers and finger access. Compare the sketch with the empty box interior and usable lid height. Keep assumptions visible so they can be checked with a first module.

Keep a plan version before changes and record the dimensions associated with each module. Prusa recommends saving versions during iteration; these notes help identify which geometry matches the configuration you checked.

Test one compartment before printing the whole box

Prusa recommends test prints and adjustments before considering a model final. For your insert, test a representative compartment with the intended sleeved cards and pieces. This can check local fit and handling; it does not prove every module, the lid or the complete box will fit.

If a sample does not match the drawn dimensions, first compare the printed part, its orientation and the reference measurements before changing the whole design. The internal page on dimensional accuracy can provide further reading; do not automatically conclude that calibration is at fault or adjust the printer without checking.

Prusa’s guide says filament properties and intended conditions can affect design, and that some filaments for demanding conditions may reproduce small details less well than PLA. It does not select a material for this insert. Choose for your printer, use and design requirements, then check a test compartment. Material quantity and cost should be estimated from your design and your project data.

Sources and limits

• Modeling with 3D printing in mind — Prusa Knowledge Base
• STANDARD CARD GAME VALUE PACK 200 MATTE SLEEVES - Gamegenic

We organize manufacturer and community documentation; we have not measured these products ourselves. The manual for your exact model takes precedence over general guidance.