You can sew independent faces into a shell using Stitch Faces. If the shell is closed which has no open bound, you can also make it into a solid. To seperate faces from a shell or solid shape, you can use Decompose. In Decompose, you can also decompose non-manifold solid into several manifold solids.
To open Stitch Faces:
Click Stitch Faces(Geometry Tools toolbar) or click Geometry, Geometry Tools, Stitch Faces .
To stitch faces, check Stitch:
Select the faces or check "All faces" to select all faces from current model.
If the faces can group into a shell which has no open bound, you can check "Try to make solid" to make the final shell into a solid.
Specify distance tolerance. It will be automatically calculated according to the bounding box of the selecting faces.
To stitch non-manifold model, you should check "Non-manifold Mode". Default it is unchecked.
To stitch the selecting face into several groups classified by the part ID, check "Group by part".
a. Raw independent faces |
b. Shell after stitching |
To decompose solid, check Decompose:
Select the shell or solid to Solid List.
To decompose shell or solid into independent faces, directly click "Apply".
To decompose non-manifold solid into manifold solids, check "Decom Non-Manifold".
![]() |
![]() |
a. Raw non-manifold solid (Notice: the pink colored edges are non-manifold edges) |
b. Decompose raw solid into 4 manifold solids |