PrintPal alternative: its mold box generator vs Meshcast
This guide was drafted with AI assistance.
PrintPal is a broad 3D printing platform: an AI model generator plus over 40 free browser tools, one of which is a mold box generator. That tool is genuinely good at one job: a simple two-part silicone box, free, with no registration, no limits and no watermark, computed on your own device. Meshcast is built around molds, with a separate tool per material: candles, silicone (box or a contoured shell that uses less silicone), trays, concrete planters, plaster and press molds, with repair, undercut filling and print settings built in. For one quick silicone box, PrintPal's tool is enough. For anything past that, start with the silicone mold maker or the rigid box mold here.
The short answer
These are not the same kind of product, which is why a straight feature race is misleading. PrintPal's business is AI model generation and a wide set of tools for everything around a 3D printer. Its mold box generator is one tool among 46. Meshcast is built around mold generators, so the comparison below is really PrintPal's mold box generator against Meshcast's mold tools.
Everything said here about PrintPal comes from their own public pages, read on 25 September 2026: the mold box generator page, the tools index and the pricing page. Where their site did not say something, this page does not guess.
PrintPal mold box generator vs Meshcast
"Not stated" means we could not find it on their mold tool's page, not that it can never be done with PrintPal's other tools.
| Feature | PrintPal mold box generator | Meshcast |
|---|---|---|
| Price for the mold tool | Free, "no watermarks, no limits" | Free account: 3 STL downloads a week, personal use, small "Meshcast" engraving. Pro to sell and remove it |
| Account needed | No | Yes, to download (free) |
| Where it is computed | On your device (WebAssembly), no upload | On your device for the tray mold and lighter tools; on our server in Germany for the main mold generators, file deleted once your download is ready |
| Files in | STL, OBJ, GLB, GLTF | STL, OBJ, 3MF |
| Files out | One STL per mold half | STL or 3MF, plus a print settings sheet in the zip |
| Mold types | A two-part box for pouring silicone | Silicone box, contoured silicone shell (2 to 4 parts), rigid two-part mold for wax and resin, multi-cavity tray, vase and planter mold with a core, plaster housings, press mold |
| Settings | Wall, clearance, base, split position and axis, key size, spout and vent diameter | Per tool, tuned to the material: for example wick hole on candle molds, draft on cores, shrinkage presets for plaster and concrete |
| Silicone estimate | Estimated silicone volume | Silicone in ml and grams, box and contoured shell side by side, and how much to mix |
| Undercuts | Not stated | Highlighted, with a one-click fill on rigid box and tray molds |
| Broken or leaky files | Not on the mold tool (PrintPal has a separate mesh repair tool) | "Fix it for me" repair inside the mold tools |
| Help while you work | Not stated | MESHCAST AI inside the generators, and 50+ casting guides |
| Make the model itself | AI text and image to 3D, plus many design tools | Designers for candles, vases, soap bars, trays and signs, and ready-made mold files |
Pricing, side by side
The two price lists pay for different things. PrintPal's plans meter AI model generations; the mold box tool itself costs nothing. Meshcast's plans meter mold downloads and commercial use.
| Plan | PrintPal | Meshcast |
|---|---|---|
| Free | 10 AI generations a month, STL and OBJ export, commercial rights included. The mold box tool is free with no limits | 3 STL downloads a week plus 3 bonus on sign-up, every mold type, personal use |
| Entry paid | Pro $10/mo: 200 AI generations, high resolution, more formats | Starter $9/mo: 10 downloads a week, personal use |
| Main paid plan | Studio $25/mo: 500 AI generations, every design tool | Pro $20/mo or $179/yr: unlimited downloads, sell what you make, your own logo instead of ours |
| Top plan | Enterprise, custom, with API | Founder $349 once: Pro for life, limited spots |
Where PrintPal is stronger
If one of these is why you are choosing, choose PrintPal.
- No registration, no limit, no watermark on the mold box. Open the page, drop a file, download two halves. Nothing to sign up for.
- Everything stays on your device. Their mold tool runs locally with no upload. Our main mold generators send the model to our server to build the mold.
- Making the model in the first place. Their AI generator turns a prompt or a photo into a mesh, and 10 generations a month are free. We do not generate models from text or photos.
- Everything else around a printer. G-code viewer, format converter, print cost and Etsy profit calculators, lithophanes, name signs and dozens more. Meshcast covers molds and a few maker tools, not the whole printer.
- Commercial rights on their free plan. Their pricing page includes commercial rights on every plan. On Meshcast, selling needs Pro or Founder.
Where Meshcast is stronger
- A mold for your material, not just a box. The rigid box mold is a two-part printed mold you pour wax or resin straight into, with a wick hole. The tray mold makes multi-cavity plates. The vase and planter mold adds a tapered core so concrete comes out hollow. The plaster mold makes housings for slip casting, and the press mold a die and piston for bath bombs and pressed soap.
- Less silicone. The contoured mode builds a shell that follows your model instead of a rectangular box. The tool shows both amounts in grams before you print, so you see the saving on your own model.
- Undercuts handled before you print. Overhangs that would lock a cast in are highlighted and can be filled in one click, with a preview you can undo.
- Broken files get fixed, not rejected. Models from download sites and scans often have holes. The mold tools offer "Fix it for me" and carry on.
- Print settings with the files. Every mold zip includes a sheet with the settings the part needs (clamped, pressed or poured around) and how much to mix.
- Somewhere to learn casting. Over 50 guides on candles, soap, resin, plaster, concrete, release agents and troubleshooting, and a gallery of real casts.
Which to pick for which job
| Your job | Our pick |
|---|---|
| A simple silicone box, once, without registering | PrintPal mold box generator |
| No model yet, want one from a prompt or photo | PrintPal AI generator, then mold it here or there |
| Silicone mold, and silicone is expensive | Meshcast contoured silicone shell |
| Candles or wax poured straight into a printed mold | Meshcast rigid box mold |
| Ice, wax melts or gummies, many at once | Meshcast tray mold |
| Concrete planters and hollow vases | Meshcast vase and planter mold |
| Plaster or slip casting | Meshcast plaster mold |
| Bath bombs or pressed soap | Meshcast press mold |
| A model with undercuts or holes in the mesh | Meshcast, for the undercut fill and repair |
Questions
Is the PrintPal mold box generator free?
Yes. Its page says it is free, runs in your browser with no upload, does not ask you to register, and has no watermark or limit. It makes a two-part box to pour silicone into.
What does Meshcast do that PrintPal’s mold tool does not?
Molds for specific materials (rigid candle molds with a wick hole, multi-cavity trays, vase molds with a core, plaster housings, press molds), a contoured silicone shell that uses less silicone, one-click undercut filling, mesh repair and print settings in the zip.
Which is cheaper?
For a simple silicone box, PrintPal: the tool is free with no limits. Meshcast’s free account gets 3 downloads a week for personal use; selling what you cast needs Pro at $20 a month or $179 a year. PrintPal’s paid plans ($10 and $25 a month) pay for AI model generations, not the mold tool.
Can I sell what I cast?
PrintPal’s pricing page includes commercial rights on every plan. On Meshcast, the free and Starter plans are for personal use; selling needs Pro or Founder.
Can I use both?
Yes. A common split: generate the model with PrintPal’s AI if you do not have one, then build the mold with the Meshcast tool for your material. Both work with STL files.
Made by meshcast.app. Comparison based on PrintPal’s public pages as read on 25 September 2026; product details and prices change, so check their site before you pay. Got stuck? Email a photo and I'll help you debug.