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A 95 mm Staunton chess king with a cross, from a rigid two-part print. Cast it in resin, no silicone.

About this design

A Staunton king, 95 mm tall on a 42 mm foot: foot, bead, a long waisted body, a double collar, a flared crown under a domed cap, and a cross on top. It sets the height of the whole chess set from this library, the classic 95 mm tournament king.

The mold is exactly what our two-part candle mold generator builds for it, set to resin: two rigid halves with rubber-band grooves, pry pockets, a pour funnel on top of the cross and a thin air vent. The body is turned round one axis and the cross stands in the seam plane, so each half takes one face of it and the tool's own seam check finds nothing stuck. The arms of the cross slope up to the upright, so no bubble sits in them while the resin rises.

A chess set needs two kings, one of each colour: print the mold once and cast a black and an ivory king. The zip carries both halves, the king 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 king they cast, not a photo.

Made with Meshcast

Meshcast is a free toolkit for makers that runs in your browser: turn any 3D model into a candle, soap, concrete or silicone mold, or make your own cookie cutters, texture rollers, stamps and keychains. Nothing to install, and you can try every tool without an account.

• Candle Mold Maker: meshcast.app/candle-mold
• Guide and print facts for this design: meshcast.app/3d-models/chess-king-mold
• 400+ ready-made molds and models: meshcast.app/3d-models
• Meshcast: https://meshcast.app/
• Instagram: @meshcast.app

How this was made

The model is parametric: it is generated by Meshcast's own code, not made by an AI. The pictures are rendered in Blender. We use AI to assist our work (ideas, writing and checking), so this design carries Thingiverse's AI label to be on the safe side.

Selling what you make?

Free for personal use under CC BY-NC. Selling what you cast or print from this design needs a Meshcast commercial licence (Pro or Founder): meshcast.app/licenses

Print settings

Estimated for a current printer (Bambu, Prusa MK4 class), not sliced: 0.4 mm nozzle, 0.2 mm layers, 4 walls, 40% gyroid, the low end of what the tool's own sheet asks for a mold that gets clamped shut. PLA+ or PETG, no supports.

What you need

• About 37 g of casting resin per king: the cavity holds 34 ml
• Mold release spray or wax
• Rubber bands or clamps
• A craft knife and fine sandpaper for the sprue

Steps

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 cross. Close the halves and band them along the whole seam.
3. Mix the resin and pour it slowly down one side of the funnel on the cross 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, never by pulling on the cross.
5. Cut the sprue off the top of the cross, sand it square and trim the thin line along the seam. Release again and cast the next king.