新增cdsl

2026-08-24 14:52:08 +08:00
parent fd8c0c37ad
commit 9f8a55ff07
3892 changed files with 2872721 additions and 9169 deletions
@@ -0,0 +1,97 @@
+# Mounting Bracket Planning Skill
+
+## When to use
+
+- The request describes a mounting bracket, L bracket, U bracket, T bracket, support bracket, clamp bracket, lugged bracket, or machined support with holes.
+- The part has a load-bearing base plus one or more raised webs, tabs, arms, bosses, lugs, pockets, slots, or cutouts.
+- The model is a single machined bracket component, not an assembly with screws or attached hardware.
+
+## Do not use when
+
+- The part is only a flat plate with holes and no bracket-like 3D support structure.
+- The part is mainly a shaft, flange, bearing housing, complete hinge assembly, or sheet-metal bent bracket.
+- The prompt asks for a decorative stand or enclosure rather than a functional machined support.
+
+## Recognition features
+
+- Base block or plate that mounts to another part.
+- Vertical web, side wall, lug, tab, raised boss, or protruding arm.
+- Mounting holes, threaded holes, counterbores, slots, or cutouts.
+- Reinforcing ribs or fillets at transitions may appear when strength matters.
+- Hole placement is usually datum-driven and often symmetric or mirrored.
+
+## Core invariants
+
+- Build the main load path first: base, web/tab/lug, and boss geometry before small holes.
+- Keep bracket features as one coherent body unless the prompt explicitly asks for assembled parts.
+- Place holes from functional datums, not visual guesses.
+- Use standard hole features for threaded, counterbored, countersunk, and clearance holes.
+- Add cutouts/slots for clearance or adjustment only where they make functional sense.
+- Apply fillets/chamfers late, especially at web-to-base transitions and exposed edges.
+
+## Parameter roles
+
+- `base_length`, `base_width`, and `base_thickness` define the mounting base.
+- `web_height`, `web_thickness`, `tab_width`, `lug_radius`, and `boss_diameter` define support geometry.
+- `hole_diameter`, `thread_size`, `counterbore_diameter`, and `slot_length` define fastening and adjustment.
+- `edge_margin`, `hole_pitch`, `symmetry_plane`, and `boss_offset` define layout.
+- `fillet_radius` controls stress relief at transitions.
+
+## Construction sequence
+
+1. Create the base extrusion or main bracket profile.
+2. Add vertical webs, tabs, lugs, bosses, or arms as secondary extrusions from clear datum faces.
+3. Cut clearance pockets, U/L/T-shaped openings, slots, or lightening cutouts.
+4. Add standard holes using HoleWzd or cut features, positioned from datums and symmetry references.
+5. Pattern or mirror repeated holes/features when the design is symmetric.
+6. Add structural fillets at web/base intersections, then finish with small chamfers on exposed edges.
+
+## Common failures
+
+- Collapsing a bracket into a simple flat plate and losing the vertical/web structure.
+- Creating an assembly of screws, pins, or attached parts when only the bracket is requested.
+- Adding holes before the base/web geometry and producing floating or misaligned holes.
+- Mixing several unrelated bracket variants into one overloaded model.
+- Using decorative cutouts that weaken the load path or overlap holes.
+
+## Evidence summary
+
+- Latest run evidence: 247 accepted planning insights matched bracket-like descriptions and operations.
+- Strong repeated names include `plan_l_bracket_with_holes`, `bracket_with_holes_and_cutouts`, `bracket_with_holes_planning`, `mounting_bracket_with_holes`, and `plan_bracket_with_holes`.
+- Frequent operations in the latest run: Extrusion, Cut, HoleWzd, LinearPattern, MirrorPattern, Chamfer, Fillet, Boss.
+- Source model examples: 000780, 001607, 002620, 004421, 009414, 028735, 032081, 036242, 041396, 047048, 054507, 079425, 096301, 134801, 187546, 195869, 207737, 225658.
+- Source: CAD-SkillX offline review of SCAD58 descriptions, STEP summaries, and SolidWorks feature evidence.
+
+## Retrieval metadata
+
+Triggers:
+- `mounting bracket`
+- `support bracket`
+- `L bracket`
+- `U bracket`
+- `T bracket`
+- `bracket with holes`
+
+Secondary triggers:
+- `web`
+- `lug`
+- `tab`
+- `boss`
+- `slot`
+- `cutout`
+- `threaded holes`
+
+Operation triggers:
+- `extrude base`
+- `extrude tab`
+- `cut slot`
+- `hole wizard`
+- `mirror pattern`
+- `fillet web transition`
+
+Exclusions:
+- `flat mounting plate only`
+- `flange`
+- `shaft`
+- `bearing assembly`
+- `sheet metal bend`