New Model Design Review

I want to use a Flux template to improve this project before routing.
Please advise whether this project can be migrated, recreated, or restarted using the Flux template:
[Multi-layer] JLCPCB Constraints
Reason: This Rev A board is a 4-layer PCB intended for JLCPCB-style fabrication rules, and I want the correct trace width, clearance, via, drill, annular ring, soldermask, and silkscreen constraints applied before routing.
Project: FMHM X AI Gateway Rev A
Board type: 4-layer ESP32-WROVER-E NMEA 2000 CAN to Ethernet/Wi-Fi gateway prototype.
Current design status:
  • Schematic is cleaned and ERC clean.
  • Placement is done.
  • Routing has not started.
  • No Gerbers should be generated yet.
  • No manufacturing files should be generated yet.
Question: Can I apply the [Multi-layer] JLCPCB Constraints template to the existing project without damaging the schematic and placement?
If yes:
  1. Apply/import only the manufacturing/routing constraints.
  2. Preserve the current schematic.
  3. Preserve the current component placement.
  4. Preserve the 4-layer stackup intent:
    • Layer 1: top signal/components
    • Layer 2: solid GND
    • Layer 3: power plane/pours
    • Layer 4: bottom signal
  5. Do not autoroute.
  6. Do not generate Gerbers.
If no: Tell me the safest workflow:
  • Should I restart the project from the [Multi-layer] JLCPCB Constraints template?
  • Can the current schematic be copied into that template?
  • Can the current placement be copied over?
  • What will be lost if I restart from the template?
After applying or advising on the template, report:
  1. Minimum trace width
  2. Minimum clearance
  3. Minimum via drill
  4. Minimum via diameter
  5. Minimum annular ring
  6. Soldermask expansion rule
  7. Silkscreen-to-pad clearance
  8. Confirm whether these rules match JLCPCB 4-layer capabilities
  9. Any rules that still need custom overrides for USB, Ethernet, RMII clock, CAN, and power
Do not route. Do not autoroute. Do not generate Gerbers.
Processing was stopped.
Compare constraints
Apply constraints only
Check stackup
Report custom overrides
Run DRC only

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Documents

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    Assets

    nv_logo.svg

    nv_logo.svg

    nv_logoDefault
    multi-layer-thumb.png

    multi-layer-thumb.png

    multi-layer-thumbThumbnail

    [Multi-layer] JLCPCB Constraints

    [Multi-layer] JLCPCB Constraints thumbnail
    Use this template if you're planning to get your multi layer board manufactured in JLCPCB. It has the via min/max and trace width constraints already baked as global rules. #project-template #template #manufacturer-design-rules

    Properties

    True

    Isolation

    True

    True

    Home-use device classification

    Mains

    Medical

    Medical-grade SELV adapter requirement for BF-classified, home-use BP monitor; external adapter must be BIS-registered and provide SELV-limited output for patient-connected circuitry.

    RoHS

    1.6

    mm

    LCSC

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    Distributor

    Qty 1

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