Crystal cluster candle mold

A crystal cluster candle 98 mm tall and 105 mm wide: nine hexagonal crystal points with sharp faceted tips, a tall one in the middle and the rest fanning out to both sides, growing out of a lumpy stone base.

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The mold is exactly what our two-part candle mold generator builds for it: two rigid halves with rubber-band grooves, pry pockets and a pour funnel on top. Every crystal leans in the plane of the seam or parallel to it, so each one shows its flat faces to both halves and nothing can hook. The tool's own seam check finds nothing stuck, and you need no silicone.

Pour it in amethyst purple, rose quartz pink or clear with a little white, and the flat facets catch the light the way the stone does. The wick comes out of the tip of the tallest crystal. The zip carries both halves, the 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 candle they cast, not a photo.

What you need

• About 114 g of pillar wax: the cavity holds 126 ml
• A tabbed, primed wick for a 30 mm candle, about 120 mm long
• Rubber bands or clamps, and a clip or wick bar across the funnel

How to cast it

1. Print both halves as exported. Clamp-strength settings: 4 walls, 40% gyroid infill, no supports.
2. Drop a tabbed wick into one half so the tab sits on the cavity floor, close the halves and band them along the whole seam.
3. Clip the wick centred across the pour funnel and pour at 65 to 75 C.
4. Once the first pour is firm but still warm, top up the funnel. Wax shrinks, and the second pour fills the dip.
5. Cool fully, open the halves at the pry pockets and trim the wick just above the tip of the tallest crystal.