Mesh Welding & Repair is a lightweight desktop tool for preparing STL files for 3D printing
Mesh Welding & Repair is a lightweight desktop tool for preparing STL files for 3D printing. Drop an STL file to automatically weld, repair, and validate the mesh. Compare Original vs Output in an optional 3D preview, review clear mesh statistics, and export a slicer-ready STL. The app is designed to fix issues commonly reported by slicers (such as non-manifold edges), while avoiding unnecessary geometry changes. Key Features - Drag & drop STL import - Weld + Repair or Repair Only modes - Smart automatic weld tolerance (eps) selection - Clear mesh statistics & watertight status - Optional side-by-side 3D preview (Original / Output) - Clean STL export for slicers - Fast, offline, and lightweight Weld vs Repair Repair Only - Fixes degenerate triangles and topology issues - Removes common slicer errors (e.g. non-manifold edges) - Avoids merging geometry whenever possible Weld + Repair - Welds nearby vertices to create shared topology - Repairs the resulting mesh for watertight output - Recommended when parts should form a single solid About eps (weld tolerance) - eps is the merge tolerance used during welding. - Smaller values = safer, minimal changes - Larger values = stronger fusion, less detail - The app automatically selects the safest eps that improves the mesh without introducing new problems. Privacy: mergeSTL does not collect analytics, does not track you, and does not transmit your files. All processing happens locally on your Mac. - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - Part of The Beaver Tools — a collection of focused Mac utilities.
| # | Name | Price | Currency | Region |
|---|---|---|---|---|
| 1 | Item | ¥ 48 | CNY | 中国 |
