CARITO GRID SYSTEM LAW v1.0
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Document: 03_Grid_System_Law.txt
Status: Foundational / Non-Negotiable
Applies To: All Carrito frames, modules, power systems, vehicles, shops, and builders

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1. PURPOSE
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This law defines the Carrito Grid System. Grids establish physical scale, power expectations,
and compatibility boundaries. The grid system exists to allow evolution of power systems
without redesigning the vehicle platform.

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2. CORE PRINCIPLE
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Grids define engines.
Engines do not define grids.

No engine choice may force a grid change, chassis change, or reclassification of an existing grid.

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3. GRID DEFINITIONS
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SMALL GRID (SG)
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Small Grid is the baseline grid for Carrito v1.

Intended for:
- Street-legal builds
- Small commercial engines
- Generator-based systems
- Electric and hybrid systems

Characteristics:
- Conservative power expectations
- Maximum serviceability
- Highest future compatibility

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LARGE GRID (LG)
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Large Grid is an expanded capability grid.

Intended for:
- Motorcycle engines
- Larger electric stacks
- Higher-output generator hybrids

Characteristics:
- Increased power capacity
- Reduced service margin compared to SG
- Special classification in some jurisdictions

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DELUXE LARGE GRID (DLG)
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Deluxe Large Grid is the upper practical limit.

Intended for:
- Automotive-scale engines
- Heavy hybrid systems
- Experimental or special-use builds

Characteristics:
- Not baseline street-legal by default
- Requires explicit classification
- Intended for advanced builders

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EXPLICITLY EXCLUDED
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Industrial engines, stationary generators, and heavy truck or semi engines
are outside the scope of the Carrito platform.

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4. GRID PRIMACY
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Every Carrito component belongs to exactly one grid.

Components may not:
- Span multiple grids
- Auto-scale between grids
- Be ambiguously sized

Adapters may allow smaller-grid components to operate within larger grids,
but not the reverse.

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5. DOWNWARD COMPATIBILITY
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Downward compatibility is permitted.

Rules:
- Small Grid modules may be used in Large Grid frames via approved adapters
- Large Grid modules may not be installed in Small Grid frames
- Grid adapters must be explicitly labeled

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6. GRID AND THE SACRED POWER VOLUME
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Each grid defines its own Sacred Power Volume (SPV).

The SPV:
- Is fixed per grid
- Is intentionally oversized
- Protects future compatibility

Exceeding the SPV places a build outside baseline compliance.

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7. GRID AND THE MOTOR MODULAR FRAME
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The MMF cage is grid-specific.

Rules:
- MMF cages may not be resized to fit engines
- Engines and Power Frames must fit the grid MMF
- Swapping grids requires swapping the MMF cage

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8. GRID AND COMPATIBILITY CLASS
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Grid size does not override compatibility class.

A build must declare both:
- Grid (SG, LG, DLG)
- Compatibility class (A, B, C)

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9. INSPECTION CLARITY
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Grid designation must be clearly visible on serialized components.

Inspectors may rely on grid identification to determine:
- Expected power scale
- Baseline eligibility
- Review requirements

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10. EVOLUTION POLICY
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New grids may be added only when:
- Existing grids cannot safely accommodate new requirements
- Backward compatibility would be harmed by expansion
- Platform integrity requires separation

Grids are added rarely and deliberately.

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11. AMENDMENTS
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Changes to this law require:
- Version increment
- Change log entry
- Platform justification

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END OF GRID SYSTEM LAW
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