Pentomino 3D Puzzle

🧩 Pentomino 3D

The puzzle consists of twelve pentomino pieces, one extra square piece, and a storage box with a sliding lid.

Use all 13 pieces to fill the 8 × 8 area of the box. The twelve pentominoes can also form three-dimensional shapes, such as a 3 × 4 × 5 block. Many other flat and three-dimensional shapes are possible.

➤ Pentomino 3D Online Solver

🖨 Print Settings

Material: PLA · No supports · No raft or brim

You can print the snap-fit lid with either side on the print bed. For a nicer finish on the visible surface, place the top side face down.

You can ignore the slicer warning caused by the breakaway connection of the spring tabs underneath the lid.

🔧 Before Using the Lid for the First Time

Release both spring tabs before sliding the lid into the box. Otherwise, the lid may get stuck and become very difficult to remove.

Press the two spring tabs underneath the lid inward, one at a time, to release them. You should hear a small snap.

If a spring tab is difficult to release: Place a hard board on the table. Hold the lid on its edge and press the spring tab against the board to release it. Repeat for the other spring tab if needed.

The animation in the image gallery shows how to release the spring tabs.

💡 Tip for Better-Looking Puzzle Pieces

For a consistent finish on both sides, print two sets at half thickness. To do this, lower the pieces 7.0 mm into the build plate in your slicer, mirror one set, and glue the matching halves together.

🎬 Solution Videos

The three videos show how to build the three-dimensional shapes pictured in the gallery.

🌐 More Polyform Puzzles and Background Information

➤ Pentoma Puzzles

🧩 More Polyform Puzzles on Printables

➤ All My Printables Models

⚠ Safety Note

Choking hazard due to small parts. Not for children under 3 years.