◆ Resin

Chess queen mold

An 88 mm Staunton chess queen with a turned coronet, from a rigid two-part print. Cast it in resin, no silicone.

3D render of an ivory resin chess queen with a turned coronet and ball between the two printed halves of its rigid orange and blue mold
Resin ~179 g Pro early access

A Staunton queen, 88 mm tall on a 40 mm foot: foot, bead, a long waisted body, a double collar, and a coronet made of a flared cup, a rim bead, a crown band and a low dome under a ball. She is drawn to stand between the bishop and the king from this library.

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The mold is exactly what our two-part candle mold generator builds for her, set to resin: two rigid halves with rubber-band grooves, pry pockets, a pour funnel on the ball and a thin air vent. The whole piece is turned round one axis, so it pulls straight out of a split through that axis and the tool's own seam check finds nothing stuck.

A chess set needs two queens, one of each colour, and a spare is handy for a promoted pawn: print the mold once and cast them in black and ivory resin. The zip carries both halves, the queen master as its own STL, the tool's own print-settings sheet and a recipe file for the generator.

Shown as a 3D render of the printed mold halves pulled apart around the queen they cast, not a photo.

What you need

4
  • About 33 g of casting resin per queen: the cavity holds 30 ml
  • Mold release spray or wax
  • Rubber bands or clamps
  • A craft knife and fine sandpaper for the sprue

How to cast it

5
  1. Print both halves as exported. Clamp-strength settings: 4 walls, 40% gyroid infill, no supports. Sand the seam faces flat if your first layer came out rough.

  2. Coat both cavities with mold release, working it into the grooves of the coronet. Close the halves and band them along the whole seam.

  3. Mix the resin and pour it slowly down one side of the funnel so the air can leave through the other side and the vent.

  4. Leave it to cure fully, as long as the resin's datasheet says, then open the halves at the pry pockets.

  5. Cut the sprue off the top of the ball, sand it round and trim the thin line along the seam. Release again and cast the next queen.

Print details

6 hPrint time
~179 gFilament
2Printed parts
50 × 59 × 107 mmSize (W x D x H)
All print details
Print details
Cast materialResin
Printed parts2
Size (W x D x H)50 x 59 x 107 mm
Print bed needed59 x 26 mm, 108 mm tall
Filament~179 g
Layer height0.2 mm
Infill40%
SupportsNot needed
DownloadZIP: 2 printed parts (STL) + queen master (STL) + print sheet + recipe
Added2026-09-26

Pro early access until October 26, 2026, then free with any account.

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Made with the free Rigid box mold generator. Upload your own model and get the same kind of mold built around it, in your browser.

Free for personal use. Selling the pieces you cast needs a commercial licence (Pro or Founder); passing on the file itself is not permitted on any plan. Full terms.

New to casting? Read the candle mold guide.

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Questions about this design

Why does the chess queen have a turned coronet instead of points?

Points round a coronet leave gaps that face the seam from the side, and a rigid half cannot pull out of a gap like that: it locks. So the coronet is turned, a flared cup with a bead, a crown band and a dome, which releases cleanly and still reads as the queen next to the king's cross. A pointed coronet needs a silicone mold.

How tall is the chess queen next to the king?

She stands 88 mm to the king's 95, on a 40 mm foot to his 42, the usual Staunton step between the two tallest pieces. The bishop from the same library is 78 mm, so the queen sits clearly between them on the back rank.

How do I get a glossy finish on a resin chess queen?

The printed mold leaves faint layer lines on the resin, so a cast comes out satin, not glossy. Sand the seam and the sprue mark up to 1000 grit, then brush on a thin coat of the same resin or a clear coat and let it cure standing on its foot. The coronet and the ball come up bright.

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