◆ Candle wax
Three round bubbles stacked into a 91 mm pillar, shrinking towards the top. A rigid two-part print, no silicone.
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A stacked bubble candle 91 mm tall: three round balls merging into each other, 40, 35 and 30 mm across, the simplest take on the bubble candle trend.
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. It is turned round one axis, so a seam through the middle releases it cleanly and the tool's own seam check finds nothing stuck. You pour straight into the print, no silicone.
Pour a few in soft pastels for a shelf, or in white with a gold wick for a table. 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.
Print both halves as exported. Clamp-strength settings: 4 walls, 40% gyroid infill, no supports.
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.
Clip the wick centred across the pour funnel and pour at 65 to 75 C.
Once the first pour is firm but still warm, top up the funnel. Wax shrinks, and the second pour fills the dip.
Cool fully, open the halves at the pry pockets and trim the wick.
Print details
| Cast material | Candle wax |
|---|---|
| Printed parts | 2 |
| Size (W x D x H) | 52 x 61 x 112 mm |
| Print bed needed | 61 x 27 mm, 113 mm tall |
| Filament | ~190 g |
| Layer height | 0.2 mm |
| Infill | 40% |
| Supports | Not needed |
| Download | ZIP: 2 printed parts (STL) + candle master (STL) + print sheet + recipe |
| Added | 2026-09-25 |
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 download. Opens the Thingiverse listing in a new tab.
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.
The three balls sit on one axis, so every horizontal slice is a circle and a split through the middle releases them. In the bubble cube the bubbles sit side by side, and the waists between them lock any rigid split.
Yes, with a wick sized for the smallest ball, about 30 mm, and short burns. The waists are over 25 mm across, so the candle stays stable as the top ball melts down into the next.
A hard pillar wax or a paraffin blend, about 61 g per candle. Soft container soy sticks to a printed mold and dents at the waists; if you want soy, pick a pillar soy blend and print the halves in PETG.
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