Cardlinx - Cardboard Fort maker

CardLinx are rigid, snap-on cardboard connectors designed for fast, sturdy fort-building without tape, tools, or cleanup. They print reliably on almost any setup, with two tuned profiles included:

• 0.8 mm nozzle profile for maximum speed (166%)

• 0.4 mm nozzle profile for cleaner, more detailed parts

All parts print with no supports and no post-processing required.

Just cut some cardboard squares or panels, snap on the connectors, and build your fort. Throw a sheet or blanket over it for an instant hideout, castle, or bunker. Everything is durable, reusable, and completely kid-friendly .

• Maximum-speed printing must be manually enabled on your printer.
If your machine supports high-flow or “max speed” modes, turn it on before printing with the 0.8 mm profile.

• Use the included part arrangements—do NOT auto-arrange.
The connectors are laid out carefully to prevent pieces from fusing together when printed at high speed. Auto-arranging or tightly packing the parts can cause failures.

• If printing from a mobile app, you can disable individual parts.
Just toggle off any connectors you don’t want to print. This reduces print time while keeping the layout safe for high-speed printing.

For PC, just select the parts you don't want and remove them (Backspace / Delete key).

• Straight – walls and beams

• 45° – angled roofs, creative shapes

• 90° – perfect corners

• Hinge – doors, flaps, adjustable angles

• 4-Way – junctions for large structures

• Strong, rigid snap-fit holds cardboard securely

• Prints fast with 0.8 mm, or clean with 0.4 mm

• No supports or cleanup needed

• Works with most cardboard thicknesses

• Perfect for kids, makers, classrooms, and STEM spaces

Turn cardboard into a construction system.
Turn imagination into a fortress.
CardLinx.