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Documentation Index

Fetch the complete documentation index at: https://docs.3dpreppro.com/llms.txt

Use this file to discover all available pages before exploring further.

Error Detection tool showing detected issues
Error Detection scans your model for geometry problems that could cause printing failures or visual artifacts.

When to use this

  • Before repair, to understand what’s wrong with your model
  • After repair, to verify all issues were resolved
  • When your model looks wrong or has unexpected gaps

What it detects

Error typeWhat it means
Non-manifold edgesEdges shared by more than two surfaces — the model isn’t properly solid
Self-intersectionsSurfaces that pass through each other
Degenerate facesExtremely thin or zero-area triangles
Flipped normalsSurfaces pointing inward instead of outward

Results

  • Count of each error type
  • Highlighted locations directly on the model — errors are marked in the viewport
  • Click-to-navigate — click an error in the list to jump the camera to that location

Tips

  • Non-manifold edges are the most common issue — they mean surfaces don’t form a proper solid
  • Run this before repair to understand the scope of issues
  • After repair, the error count should be zero or near-zero
  • If errors persist after repair, try a different model type preset or quality level