◆ Plaster
Leaf aroma stone tray mold
Six leaf-shaped aroma stones in plaster, from one printed tray. Drip oil on, let it scent the room.
◆ Plaster
Six leaf-shaped aroma stones in plaster, from one printed tray. Drip oil on, let it scent the room.
A printed tray for six leaf aroma stones, each 62 x 34 mm and 10 mm thick, with a midrib and five pairs of veins pressed into the face and softly rounded edges.
Made with our tray mold generator in its rigid tray mode: print the tray, wipe in a release agent and pour casting plaster straight in. Plaster is porous once dry, so a few drops of essential oil soak in and scent a drawer, a car or a bedside table for days.
The zip carries the tray exactly as the tool exported it, one leaf on its own as an STL, the master uploaded to the tool, and a print and pour sheet with the volume of each cavity.
Shown as a 3D render of the printed tray with three white plaster leaves in front, not a photo.
Print the tray as exported, cavities up, no supports. PLA is fine: plaster only gets warm as it sets.
Wipe a thin film of mold release, petroleum jelly or cooking spray into every cavity, including the fine detail.
Mix casting plaster to a pouring cream (add pigment now if you want colour), fill each cavity and tap the tray on the table for a minute to lift the bubbles.
Leave it for an hour until the plaster is warm and hard, then flex the tray corners and tip the pieces out. Let them dry for a day before you add oils or paint.
Print details
| Cast material | Plaster |
|---|---|
| Printed parts | 1 |
| Size (W x D x H) | 126 x 140 x 14 mm |
| Print bed needed | 140 x 126 mm, 15 mm tall |
| Filament | ~88 g |
| Layer height | 0.2 mm |
| Infill | 15% |
| Supports | Not needed |
| Download | ZIP: printed tray (STL) + one aroma stone (STL) + tool master (STL) + print and pour sheet |
| Added | 2026-09-24 |
Made with the free Tray 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 ice cube tray mold guide.
Dry plaster is full of tiny pores. A few drops of essential oil soak in and evaporate slowly from the whole surface, which scents a small space for several days. Add more drops when the smell fades; the stone works for years.
Air trapped against the veins. Brush a thin first layer of plaster into each cavity, then fill it, and tap the tray on the table for a full minute. Mixing the plaster slowly, without whipping air in, helps as much as the tapping.
Yes. Mix a little acrylic paint, mica or pigment powder into the water before adding the plaster, no more than about 5% of the plaster weight or it weakens the stone. Pigment keeps the stone porous; paint on the surface would seal it.
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