STEP export creates very small faces which break surface meshing

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giesbrecht
Posts: 1
Joined: Tue Nov 14, 2023 7:25 pm

STEP export creates very small faces which break surface meshing

Post by giesbrecht »

System: Windows 11
Zofz version: 3.2.3
PCB Import method: ODB++
PCB Source: Allegro ODB++ version 8 export

Meshing software: Salome version 9.10.0

Hello - so far ZofzPCB has proven very useful for preparing STEP models for FEM simulation of my PCB copper structures, but I get a number of errors in Salome due to incredibly small faces (image attached). This is a big problem for me, as it slows down productivity. My workaround right now is to bring this into a 3D CAD tool and manually fix every offending face (in this STEP export, there are 26). This is slow and tedious. Below are photos from my 3D CAD software and Salome after mesh generation. I tried measuring the face width, but it's too small to resolve and reports as "0 mm" in my software. It's less than 5µm for sure.

An idea of if/when it could be resolved would be fantastic.
Attachments
small-face_inCAD_zoomed.png
small-face_inCAD_zoomed.png (127.54 KiB) Viewed 2236 times
small-face_inCAD.png
small-face_inCAD.png (727.49 KiB) Viewed 2238 times
small-face.png
small-face.png (475.16 KiB) Viewed 2239 times
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