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Mesh to CAD: how it works

Mesh to CAD turns a triangle or quad mesh (STL, OBJ or PLY) into a STEP file made of smooth NURBS surfaces, a real solid body that opens in SolidWorks, Fusion, Onshape, Rhino, FreeCAD and any other CAD program.

Steps

  1. Drop one or more meshes. Each separate piece of a file becomes its own body.
  2. Pick the kind of shape: hard surface for machined and modelled parts (sharp edges kept), organic for sculpts and scans, or pick the hard edges yourself.
  3. Convert, then turn the result in 3D and check how far it is from your mesh, for free.
  4. Download the STEP as one part or as an assembly. Downloads use credits.

Questions

What if my mesh has holes or errors? Holes are filled, stacked and zero-size faces are removed, and every remaining fault is shown on the model with its size and place.

Does it keep quads? A quad mesh is treated as a subdivision cage and converted exactly. Dense triangle meshes can be rebuilt as a lighter quad mesh first, sharp edges kept.

How accurate is it? The surface is fitted to your mesh within the tolerance you choose, and the view shows the distance from the mesh across the whole part.

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Settings

What kind of shape is it?

Mesh units

Accuracy

Name in the CAD file

Untick for meshes meant to be open, like a sheet or a cloth.

For dense meshes. The mesh is reduced and turned into quads, sharp edges kept, then fitted back to your full mesh. Thin-walled dense meshes are rebuilt this way on their own.

Starting density 5

Raise it when thin walls or small features come out merged. Detail is refined automatically either way.

Choose a new password
A mesh goes in.
A CAD solid comes out.

Smooth NURBS surfaces in a STEP file that opens as a native body. Convert and inspect for free; pay only to download.

Any part goes in.
A hollow shell comes out.

STEP files and meshes. Pick the faces to leave open, cut it with a plane, or keep it closed with drain holes.

Parts to hollow

Drop STEP, STL, OBJ or PLY here Each solid, and each separate piece of a mesh, is its own body

Hollowing and looking at the result is free.

· Terms and privacy

Hollowed

Faces to leave open on

Click a face to open or close it. On meshes a click takes the whole smooth area, up to the sharp edges. Drag to turn the view. 0 picked.

Meshes

Drop STL, OBJ or PLY here Several meshes make one product with several bodies

Converting and inspecting is free.

· Terms and privacy

Uploading

Picking hard edges on

Click an edge to make it hard or soft. Double-click picks the whole line. Drag to turn the view. 0 hard edges.

on the meshtolerance3 x

Converted

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