STL checks before mold setup
Dimensions, triangle count, and problem areas are visible before part generation, so you can see whether the model fits a silicone mold from STL workflow.
For DIY makers and small workshops
Printable formwork from STL without manual CAD assembly
Upload an STL, choose the bottom plane, and download a separate bottom plus wall sections for 3D printing the formwork.
For valid STL files up to 500 MB with a flat selected bottom. Built for master models, small candles, figures, and DIY batches.
- 4 steps
- from STL to export
- STL/3MF
- printable files
- 500 MB
- STL file limit
Capabilities
Silicone mold formwork without manual CAD assembly
Bottom and walls for the mold
Thicknesses, clearances, and wall splitting are handled in one workflow to produce printable mold formwork around the source model.
3D print the formwork
After checking the preview, download separate STL or 3MF formwork parts and prepare them for 3D printing in your usual slicer.
Output
What you know before printing
CraftMold shows model limits, builds printable parts, and leaves final control with you before download.
Output files
- mold bottom and wall sections;
- separate STL/3MF files for the slicer;
- result preview before export.
Checks before build
The service shows dimensions, file limits, and geometry issues that can break generation or printing before you start the build.
Best suited for
Master models, figures, small batches, and DIY casting where you need silicone mold formwork around an STL.
When CAD is still needed
If the model has no suitable flat bottom, the file is broken, or custom engineering fixtures are required, the service stops with a clear reason.
Process
Clear steps instead of scattered operations
- Upload modelThe service reads the model and shows basic checks.
- Choose bottomSelect the working side and parameters for the future mold.
- Build wallsCraftMold calculates formwork sections around the model.
- Download STL/3MFCheck the preview and take the files for printing.