Configuration file for MCAD assembly

The configuration file allows you to assemble 3D components, 3D layout components in HFSS 3D.

The code loads the configuration file and creates an assembled design in HFSS 3D:

from ansys.aedt.core.extensions.hfss.mcad_assembly import run

run(config_data="assembly_config.json")

File structure example:

example

This code creates a configure file and create an assembled design in HFSS 3D:

import json
from pathlib import Path


from ansys.aedt.core.extensions.hfss.mcad_assembly import Arrange
from ansys.aedt.core.extensions.hfss.mcad_assembly import MCADAssemblyBackend
from ansys.aedt.core.extensions.hfss.mcad_assembly import run

CUR_DIR = Path(__file__).parent


def create_config() -> MCADAssemblyBackend:

    top_assembly = MCADAssemblyBackend()
    top_assembly.add_mcad_component_model(
        name="case", path="mcad_assembly/Chassi.a3dcomp"
    )
    top_assembly.add_mcad_component_model(
        name="cable", path="mcad_assembly/Cable.a3dcomp"
    )
    top_assembly.add_mcad_component_model(
        name="clamp_monitor", path="mcad_assembly/BCI_MONITORING_CLAMP.a3dcomp"
    )
    top_assembly.add_mcad_component_model(
        name="cap0402", path="mcad_assembly/Capacitor_HFSS.a3dcomp"
    )
    top_assembly.add_ecad_component_model(
        name="pcb", path="mcad_assembly/DCDC-Converter-App_main.aedb"
    )

    cs = top_assembly.add_coordinate_system(name="GLOBAL_2")
    cs.origin = ["100mm", "0mm", "0mm"]
    cs = top_assembly.add_coordinate_system(name="CS_CLAMP")
    cs.origin = ["-130mm", "80mm", "12mm"]
    cs.reference_coordinate_system = "GLOBAL_2"

    sub_comp = top_assembly.add_sub_mcad_component(name="case", model="case")
    sub_comp.target_coordinate_system = "GLOBAL_2"
    sub_comp.reference_coordinate_system = "GLOBAL_2"

    sub_comp_ = sub_comp.add_sub_ecad_component(name="pcb", model="pcb")
    sub_comp_.target_coordinate_system = "Guiding_Pin"
    sub_comp_.layout_coordinate_systems = [
        "CABLE1_via_65",
        "CABLE2_via_65",
        "H0_via_65",
    ]
    sub_comp_.reference_coordinate_system = "H0_via_65"
    sub_comp_.arranges = [Arrange(operation="rotate", axis="X", angle="0deg")]

    sub_comp__ = sub_comp_.add_sub_mcad_component(name="cable_a", model="cable")
    sub_comp__.use_pin_mapping = True
    sub_comp__.placement_pin_mapping.reference_designator = "CABLE1"
    sub_comp__.placement_pin_mapping.pin_1_loc = (0, 0, 0)

    sub_comp__ = sub_comp_.add_sub_mcad_component(name="cable_b", model="cable")
    sub_comp__.use_pin_mapping = True
    sub_comp__.placement_pin_mapping.reference_designator = "CABLE2"
    sub_comp__.placement_pin_mapping.pin_1_loc = (0, 0, 0)

    sub_comp__ = sub_comp_.add_sub_mcad_component(name="cap_c4", model="cap0402")
    sub_comp__.use_pin_mapping = True
    sub_comp__.placement_pin_mapping.reference_designator = "C2"
    sub_comp__.placement_pin_mapping.pin_1_loc = (0, 0, 0)
    sub_comp__.placement_pin_mapping.pin_2_loc = (0.7375e-3, 0, 0)

    sub_comp__ = sub_comp_.add_sub_mcad_component(name="cap_c4", model="cap0402")
    sub_comp__.use_pin_mapping = True
    sub_comp__.placement_pin_mapping.reference_designator = "C3"
    sub_comp__.placement_pin_mapping.pin_1_loc = (0, 0, 0)
    sub_comp__.placement_pin_mapping.pin_2_loc = (0.7375e-3, 0, 0)

    sub_comp__ = sub_comp_.add_sub_mcad_component(name="cap_c4", model="cap0402")
    sub_comp__.use_pin_mapping = True
    sub_comp__.placement_pin_mapping.reference_designator = "C4"
    sub_comp__.placement_pin_mapping.pin_1_loc = (0, 0, 0)
    sub_comp__.placement_pin_mapping.pin_2_loc = (0.7375e-3, 0, 0)

    sub_comp__ = sub_comp_.add_sub_mcad_component(name="cap_r7", model="cap0402")
    sub_comp__.use_pin_mapping = True
    sub_comp__.placement_pin_mapping.reference_designator = "R7"
    sub_comp__.placement_pin_mapping.pin_1_loc = (0, 0, 0)
    sub_comp__.placement_pin_mapping.pin_2_loc = (0.7375e-3, 0, 0)

    sub_comp = top_assembly.add_sub_mcad_component(
        name="clamp_monitor", model="clamp_monitor"
    )
    sub_comp.target_coordinate_system = "CS_CLAMP"

    return top_assembly


if __name__ == "__main__":
    config = create_config()

    output_path = CUR_DIR / "assembly_config.json"
    with output_path.open("w", encoding="utf-8") as f:
        json.dump(config.model_dump(exclude_none=True), f, indent=4)

    print(f"Saved JSON config to: {output_path}")

    run(config_data=output_path, model_dir=str(CUR_DIR))