brepjs (andymai) errors

4 recurring problems engineers report in brepjs (andymai), ranked by impact.

#115 by errors trackedMCAD

Recurring brepjs (andymai) errors, by impact

  1. 1brepjs STL and OBJ import made every triangle its own face, so a 40 by 30 by 6 mm plate with a 10 mm hole came back as 520 faces. The new mesh-to-solid step merges it to 132 faces and reports how far the result drifted from the input in both directions.MCAD · Agent failure · 1 report66
  2. 2Claude Code swapped fillet's radius and edges arguments while authoring CAD; the verify step reported only 'edgesOrFn is not a function', and the agent had to grep other fillet calls to find the right order. Now it returns a named error with a hint.MCAD · Agent failure · 1 report66
  3. 3mesh-to-solid returned a fillet radius of 2.9999994 from float32 noise and nothing editable. The new tier recognizes features, snaps dimensions to round values and emits a short program (box 30x20x15, fillet 3).MCAD · Agent failure · 1 report66
  4. 4Sheet-metal unfold failed three ways on bent parts from real STEP exports, with merged side faces read as panels and matching corner rounds paired into a zero-length bend that threw.MCAD · Agent failure · 1 report66

How it fails

  1. Agent failure4

Sourced from public community reports. Costs and delays on individual entries are modeled estimates, not measurements.