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DBC-007

Pack: G_BASELINE Severity: major

Fillet the base of ribs and bosses so stress and flow do not spike at the root

Rule Card

Field Value
Pack G_BASELINE — DFM Baseline Codex
Title Fillet the base of ribs and bosses so stress and flow do not spike at the root
Severity major
Check logic Hybrid
Applies to CAD part, CAD wall feature
Inputs required wall_thickness_map, radii_set, geometry_features
Fix template Add or tune the root fillet so the feature carries load and flow smoothly without creating a thick sink-prone section.

Short Description

A root fillet removes the sharp stress raiser at the rib or boss base and improves flow and cooling. Too little radius concentrates stress; too much creates a thick section.

When It Applies

This rule belongs to G_BASELINE (Shared across multiple manufacturing routes) and targets CAD part, CAD wall feature.

Evidence Profile

Input Category
wall_thickness_map Geometry
radii_set Geometry
geometry_features Geometry

References

Reference Type Title
REF-BOOK-DFM-SUCCESS book A Definitive Guide to Design for Manufacturing Success

Compiled Threshold Metadata

Field Value
rib_base_radius_to_wall_min 0.25
rib_base_radius_to_wall_max 0.4
boss_base_radius_to_wall_min 0.25
boss_base_radius_to_wall_max 0.5

Sources

  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\manifest.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\rule_library.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\references.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\process_classifier.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\overlays.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\roles.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\report_templates.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\ui_bindings.json