CNC-020

Pack: B_CNC Severity: major

Tight tolerance on thin wall features → likely scrap risk

Rule Card

Field	Value
Pack	B_CNC — CNC Machining DFM
Title	Tight tolerance on thin wall features → likely scrap risk
Severity	major
Check logic	Hybrid
Applies to	CAD part, CAD wall feature
Inputs required	wall_thickness_map
Fix template	Adjust geometry/process for machine capability and setup risk.

Short Description

Tight tolerance on thin wall features → likely scrap risk; suggest redesign or add stock

When It Applies

This rule runs when the selected or auto-classified manufacturing route activates B_CNC. It targets CAD part, CAD wall feature.

Evidence Profile

Input	Category
wall_thickness_map	Geometry

References

Reference	Type	Title
REF-CNC-1	guide	Hubs CNC machining design guide

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