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3DAI
6 matching prompts · height and base table · STL from Text to STL

AI Chess Set Generator: Design a Matching 3D Printable Set

Pick a theme such as steampunk or ocean creatures, or type your own. The page writes six matching prompts, one per piece, with the same style words, plus a height and base size table for your board. Generate the king first in Text to STL, then the other five, and print both sides in two filament colours.

1. Pick a theme

All six pieces get the same theme and style words, so the set matches.

Use your own idea, not a film, game, book or brand, and not a real person.

2. Set the size

Enter your king height. Every other piece is sized from it.

3.54 in
Piece% of kingHeightBase diameterPer side
King100%90.0 mm36.0 mm1
Queen90%81.0 mm32.4 mm1
Bishop80%72.0 mm28.8 mm2
Knight75%67.5 mm27.0 mm2
Rook65%58.5 mm23.4 mm2
Pawn55%49.5 mm19.8 mm8

Board square: about 45.0 mm to 48.0 mm, so the king's 36.0 mm base fills 75-80% of a square.

These are common guidelines, not a standard. They follow the order and the base rule (40-50% of the height) in the FIDE Handbook's chess equipment standards, rounded. Go up to 50% for a wider, more stable base on the knight and pawns.

3. Make the pieces

One piece: 15 creditsFull set (6 pieces): 90 creditsUses your Text to STL login and credits.

Start with the king (one piece)

  1. Press Open in Text to STL on the king. The prompt goes with it into the Prompt box.
  2. Generate. If the box is empty, come back, press Copy prompt and paste it in.
  3. Like the style? Come back and do the other five the same way. If not, try another theme or material first.

King

90.0 mm tall · print 1 a side

King chess piece: a medieval king with a tall cross-topped crown and a long robe, medieval castle style chess set, matching set style, smooth matte material, single solid piece, flat round base, chess piece, 3d printable, no thin parts, plain white background

Open in Text to STL

Then the other five

Queen

81.0 mm tall · print 1 a side

Queen chess piece: a medieval queen with a pointed crown and a flowing gown, medieval castle style chess set, matching set style, smooth matte material, single solid piece, flat round base, chess piece, 3d printable, no thin parts, plain white background

Open in Text to STL

Rook

58.5 mm tall · print 2 a side

Rook chess piece: a stone castle tower with square battlements, medieval castle style chess set, matching set style, smooth matte material, single solid piece, flat round base, chess piece, 3d printable, no thin parts, plain white background

Open in Text to STL

Bishop

72.0 mm tall · print 2 a side

Bishop chess piece: a robed monk with a tall pointed mitre hat, medieval castle style chess set, matching set style, smooth matte material, single solid piece, flat round base, chess piece, 3d printable, no thin parts, plain white background

Open in Text to STL

Knight

67.5 mm tall · print 2 a side

Knight chess piece: an armoured war horse head with a plumed helmet, medieval castle style chess set, matching set style, smooth matte material, single solid piece, flat round base, chess piece, 3d printable, no thin parts, plain white background

The knight is the hardest shape. If it comes out odd, regenerate only this piece.

Open in Text to STL

Pawn

49.5 mm tall · print 8 a side

Pawn chess piece: a small foot soldier with a round shield and helmet, medieval castle style chess set, matching set style, smooth matte material, single solid piece, flat round base, chess piece, 3d printable, no thin parts, plain white background

Open in Text to STL

Light and dark sides

Generate each piece once and print it twice, in a light and a dark filament. No need to make a second set.

After you download

Scale each STL to its height from the table in Scale STL, then check it for thin parts in the STL viewer before printing.

Have a photo or drawing of one piece you like? Turn one picture into one 3D piece with Image to 3D (20 credits a piece).

How to make a custom chess set to 3D print

  1. 1

    Pick a theme

    Choose one of the ten themes or type your own, and pick a material look. The page writes six prompts that share the same style words.

  2. 2

    Make the king first

    Copy the king prompt, open Text to STL in a new tab, paste it and generate. If you like the style, do the other five pieces the same way.

  3. 3

    Scale each piece

    Set your king height to get the height and base size of every piece. Scale each STL to its height in Scale STL and check it in the STL viewer.

  4. 4

    Print both sides

    Print each STL once in a light filament and once in a dark one: 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights and 8 pawns a side.

What to expect from AI chess pieces

  • Each piece is its own generation, so the style is close but never identical. Regenerate any piece that does not fit.
  • The knight is the hardest silhouette to get right. Regenerate only the knight instead of the whole set.
  • Check thin parts (spikes, swords, ears, antlers) in the STL viewer before printing; they are the first to break.
  • AI models have no fixed size. Scale each one to its height from the table above.

One piece from a photo

Already have a picture of a piece you like, or need to replace a lost one? Turn one image into one 3D piece.

Board game piece from a photoGame piece from a photoTabletop game piece from a photoImage to STL

Generate your king now

Copy the king prompt above and paste it into Text to STL. You get a printable STL for 15 credits. Want a painted digital set for a game or a render instead? Make the pieces with Text to 3D and paint them with the AI 3D Texturing Studio.

Open Text to STL ↗Text to 3DPaint a digital set

More 3D printing tools

Image to STLImage to 3DText to 3DScale STLSTL viewer3D print cost calculator

AI chess set generator FAQ

You pick a theme and a material look. The page writes one prompt per piece (king, queen, rook, bishop, knight and pawn) with the same style words, so the set matches. You paste each prompt into Text to STL, which builds a 3D model you download as an STL.
Each piece is one Text to STL generation, so a full set is six generations. The exact credits are shown above the piece cards. Make the king first for the price of one piece, and only make the rest if you like it.
They share the same theme and style words, which keeps them close, but each piece is a separate AI generation, so details and proportions vary. Regenerate any piece that looks off. The knight is the hardest silhouette, so it is the one most often worth a second try.
No. Generate each piece once and print it twice, in a light and a dark filament. One side needs 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights and 8 pawns.
A king of about 75-95 mm (3-3.75 in) suits most home boards. The table on this page sizes every piece from your king height (queen 90%, bishop 80%, knight 75%, rook 65%, pawn 55%) and gives a base diameter of 40% of each height. These are common guidelines, close to the FIDE recommendations, not a fixed standard.
A common rule of thumb is that the king's base fills about 75-80% of a square. For a 90 mm king with a 36 mm base, that is a square of about 45-48 mm. The table updates when you change the king height.
No. Sets of other people's characters, brands or real people are not allowed. Describe the look you want instead, for example "wizards and castles" or "galactic knights".
Usually, but check each STL first. AI pieces can have thin parts such as spikes, swords or ears that break, and some need supports. Look at the model in the STL viewer, scale it, and add a brim or a little glue for tall pieces.