◆ Candle wax
A 100 mm hourglass pillar: full at the foot and the top, pulled in to a 34 mm waist. A rigid two-part print.
An hourglass candle 100 mm tall and 62 mm across at the foot and the top, pulled in to a slim 34 mm waist, with softly rounded edges top and bottom.
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. The hourglass is round, so a seam through its middle releases it cleanly, and the tool's own seam check finds nothing stuck. No silicone needed.
A clean, modern shape that sits well on a sideboard in a pair or a trio. Pour it in sand, terracotta or black. The zip carries both halves, the hourglass 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) | 74 x 83 x 121 mm |
| Print bed needed | 83 x 38 mm, 122 mm tall |
| Filament | ~367 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.
Size it for the 34 mm waist, not the wide ends. A wick for the ends would flood the waist once the flame gets there; a waist-sized wick burns the top and the foot as a tunnel you can hollow out and refill with a tealight.
Yes, the foot is 62 mm across, as wide as the top. The narrow waist is only in the middle.
About 149 g of pillar wax, 165 ml per candle. Pour at 75 to 80 C and keep a little back: the waist sets first, and the top usually needs one top-up as it shrinks.
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