A printed tray for four round soaps, each 76 mm across and 24 mm tall, with twelve soft scallops round the edge and a gently domed top: a handmade look that fits in the palm.
Made with our tray mold generator in its rigid tray mode: print the tray and pour melt-and-pour soap straight in, no silicone needed. The scallops are rounded and drafted, so a chilled soap pops out of the rigid tray whole.
The zip carries the tray exactly as the tool exported it, one soap 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 pink soaps in front, not a photo.
What you need
- A PETG print of the tray
- Melt-and-pour soap base, about 105 ml per soap
- Colour, fragrance and rubbing alcohol in a spray bottle
How to cast it
- Print the tray as exported, cavities up, no supports. PETG is best: melt-and-pour soap goes in at about 60 C, which is where PLA starts to soften.
- Melt the soap base, stir in colour and fragrance, and pour each cavity to the brim. Spray the surface with rubbing alcohol to pop the bubbles.
- Let the soap harden for an hour or two, then give the tray 15 minutes in the freezer so the bars shrink away from the walls.
- Turn the tray over and press on the back of each cavity to pop the soaps out. Wrap them once they are at room temperature, or they sweat.
| Cast material | Soap |
|---|---|
| Total print time | 16 h 17 min |
| Printed parts | 1 |
| Size (W x D x H) | 174 x 174 x 30 mm |
| Filament | ~207 g |
| Layer height | 0.2 mm |
| Infill | 15% |
| Supports | Not needed |
| Printer | Sliced with PrusaSlicer 2.7.2: 0.4 mm nozzle, 0.2 mm layers, 3 walls, 15% infill, MK3-class speeds. You pour straight into this tray, so print it in PETG: wax and melt-and-pour soap go in at 60 C and more, where PLA starts to soften. No supports. |
| Download | ZIP: printed tray (STL) + one soap (STL) + tool master (STL) + print and pour sheet |
| Added | 2026-09-24 |
Pro early access until October 24, 2026, then free with any account.
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.
Made with the free ice cube tray mold generator. Upload your own model and get the same kind of mold built around it, in your browser.
New to casting? Read the ice cube tray mold guide.
