# IndustryKit

> IndustryKit (https://industrykit.io) is a set of online tools for 3D parts that run in the browser. Mesh to CAD converts STL, OBJ and PLY meshes into STEP files made of smooth NURBS surfaces (real solid bodies for SolidWorks, Fusion, Onshape, Rhino, FreeCAD and other CAD programs). Shell Anything hollows STEP files and meshes to a chosen wall thickness, like the shell command in CAD. Converting, hollowing and previewing in 3D are free; downloads use credits (from $5 for 5 credits, one credit per solid body).

## Tools

- [Mesh to CAD](https://industrykit.io/): STL, OBJ or PLY to STEP. Hard-surface mode keeps sharp edges as creases; organic mode for sculpts and scans; manual mode lets you pick hard edges. Quad meshes are converted exactly as subdivision surfaces. Dense or thin-walled meshes can be rebuilt as a lighter quad mesh first. Each separate piece of a file becomes its own body (up to 300). Holes are filled and stacked or zero-size faces removed automatically; remaining faults are shown on the model with their size and position. Output: one STEP part or an assembly.
- [Shell Anything](https://industrykit.io/shell-anything): hollow a part to a wall thickness from 0.05 to 50 mm, inward, outward or centered. Openings: click faces to remove, a plane cut, or closed with drain holes. Input STEP, STL, OBJ or PLY; output in the same format (prismatic STEP parts stay STEP with exact outside faces; freeform STEP bodies come back as STL). Uses: resin and powder 3D printing, casting, lightweighting, moulded parts.

## Details

- [How it works and questions](https://industrykit.io/#about)
- [Terms and privacy](https://industrykit.io/terms): files are deleted after 24 hours (7 days once downloaded); payments by PayPal.