Automate Assembly from a JSON?

AndrewBurson — Thu, 16 Feb 2023 22:25:00 GMT

Say I have a fairly complex product assembly of several hundred parts. The assembly is automated with a large variety of options that affect everything from the overall assembly dimensions, to individual custom options that may affect one or more parts within the assembly. Assume that all the automation is controlled via forms and iLogic.

1) Would it be possible to create an additional layer of automation (via iLogic, VB code, or something else) that can import a JSON file, use the information within the JSON to fill out the forms, and generate a complete model?

2) If the above is possible, what kind of rough framework would be required to make this happen? (IE: could it be done with a script inside Inventor, or would a new program need to be created to act as an interface?)

3) How complex/time consuming would it be to build something like this? (assuming an expert was hired)

Sorry for the vagueness of all this. I've been asked to figure this out, and automation beyond iLogic is beyond my level of expertise.

Re: Automate Assembly from a JSON?

tyler.warner — Fri, 17 Feb 2023 13:05:05 GMT

@AndrewBurson There are NuGet Packages for Visual Studio that do the JSON conversion for you such as Json.NET. So it would be relatively simple to use the JSON as input. This would require using an add-in for Inventor. You can find a lot of tools on this topic by searching the forums. A good one to start with is this post & this video walkthrough. The add-in can then run any iLogic that you need for the product assembly.

Edit: You may be able to include these tools into iLogic by importing them as libraries as well like Johan mentions below & not have to do the work of developing an add-in.

Re: Automate Assembly from a JSON?

JMGunnar — Fri, 17 Feb 2023 08:31:47 GMT

Autodesk Forge

you convert Json string too data

then update Forms or run rule too build you internal Assembly

Best Regards Johan

AddReference "Newtonsoft.Json.dll"

json = My.Computer.FileSystem.ReadAllText(System.IO.Path.GetDirectoryName(ThisDoc.Path) & "\Params.json", System.Text.Encoding.ASCII)
			Dim data = Newtonsoft.Json.JsonConvert.DeserializeObject(json)

"InventorParams": {
"localName": "params.json",
"url": "data&colon;application/json, {\"Model_Name\":\"GLD-013\",\"FluidNameHotSide\":\"ISO VG 46\",\"FluidNameColdSide\":\"Eau\",\"TotalFlowHotSideLiquidIn\":4.262405842469795,\"TotalFlowHotSideLiquidOut\":4.262405842469795,\"TotalFlowColdSideLiquidIn\":3.189143092881799,\"TotalFlowColdSideLiquidOut\":3.189143092881799,\"TotalFlowHotSideVaporIn\":0,\"TotalFlowHotSideVaporOut\":0,\"TotalFlowColdSideVaporIn\":0,\"TotalFlowColdSideVaporOut\":0,\"OperatingTempHotSideIn\":27,\"OperatingTempHotSideOut\":22,\"OperatingTempColdSideIn\":15,\"OperatingTempColdSideOut\":18,\"OperatingPressureHotSideIn\":0,\"OperatingPressureHotSideOut\":0,\"OperatingPressureColdSideIn\":0,\"OperatingPressureColdSideOut\":0,\"PressureDropHotSideAllowed\":50,\"PressureDropHotSide\":31.99538322892102,\"PressureDropColdSideAllowed\":50,\"PressureDropColdSide\":2.612536594812682,\"TotalHeatExchanged\":40,\"UService\":417.7433980733148,\"UClean\":420.03796785539964,\"TotalHeatTransferArea\":12.032,\"LMTD\":7.958158286735946,\"S1_Type\":\"Threaded 7/1R\",\"S2_Type\":\"Threaded 7/1R\",\"S3_Type\":\"Threaded 7/1R\",\"S4_Type\":\"Threaded 7/1R\",\"S1_Size\":\"R 2\\\"\",\"S2_Size\":\"R 2\\\"\",\"S3_Size\":\"R 2\\\"\",\"S4_Size\":\"R 2\\\"\",\"S1_Rating\":\"Tube Connection\",\"S2_Rating\":\"Tube Connection\",\"S3_Rating\":\"Tube Connection\",\"S4_Rating\":\"Tube Connection\",\"S1_Material\":\"1.4401\",\"S2_Material\":\"1.4401\",\"S3_Material\":\"1.4401\",\"S4_Material\":\"1.4401\",\"M1_Type\":\"\",\"M2_Type\":\"\",\"M3_Type\":\"\",\"M4_Type\":\"\",\"M1_Size\":\"\",\"M2_Size\":\"\",\"M3_Size\":\"\",\"M4_Size\":\"\",\"M1_Rating\":\"\",\"M2_Rating\":\"\",\"M3_Rating\":\"\",\"M4_Rating\":\"\",\"M1_Material\":\"\",\"M2_Material\":\"\",\"M3_Material\":\"\",\"M4_Material\":\"\",\"PassArrangementHotSide\":\"1+0\",\"PassArrangementColdSide\":\"1+0\",\"ChannelArrangementHotSide\":\"47H+0H\",\"ChannelArrangementColdSide\":\"48H+0H\",\"A_Dimension\":0.3168,\"C_Dimension\":0.84,\"HeatTransferPlateMaterial\":\"1.4401\",\"HeatTransferPlateThickness\":0.4,\"GasketMaterialHotSide\":\"NBR\",\"GasketMaterialColdSide\":\"NBR\",\"NumberOfHeatTransferPlates\":96,\"ExpansionPossibility\":10,\"FrameMaterial\":\"P265GH Carbon Steel\",\"FramePaintSystem\":\"Enamel\",\"FrameColor\":\"RAL 5012 (Royal Blue\",\"TieBoltMaterial\":\"8.8\",\"TieNutMaterial\":\"8.8\",\"TieBoltAssyFinish\":\"FZB\",\"DesignPressurePEDHotSide\":10,\"DesignPressureASMEHotSide\":10,\"DesignPressurePEDColdSide\":10,\"DesignPressureASMEColdSide\":10,\"TestPressurePEDHotSide\":14.3,\"TestPressureASMEHotSide\":14.3,\"TestPressurePEDColdSide\":14.3,\"TestPressureASMEColdSide\":14.3,\"MaxDesignTemperature\":80,\"MinDesignTemperature\":0,\"VolumeHotSide\":0.015512350481003545,\"VolumeColdSide\":0.015842400491237665,\"UnitWeightEmpty\":180.30879676886178,\"UnitWeightFlooded\":209.84806576584216,\"PressureVesselDesignCode\":\"PED\",\"PressureClassCode\":\"P\",\"SupportTypeCode\":\"R\",\"HotInlet\":\"S1\",\"HotOutlet\":\"S3\",\"ColdInlet\":\"S2\",\"ColdOutlet\":\"S4\",\"VolumeHotSideUOM\":\"CubicMeters\",\"VolumeColdSideUOM\":\"CubicMeters\",\"TotalFlowHotSideUOM\":\"KiloGramsPerSec\",\"TotalFlowColdSideUOM\":\"KiloGramsPerSec\",\"OperatingTempHotSideInUOM\":\"Celsius\",\"OperatingTempHotSideOutUOM\":\"Celsius\",\"OperatingTempColdSideInUOM\":\"Celsius\",\"OperatingTempColdSideOutUOM\":\"Celsius\",\"OperatingPressureHotSideUOM\":\"BarAbsolute\",\"OperatingPressureColdSideUOM\":\"BarAbsolute\",\"PressureDropHotSideAllowedUOM\":\"KilopascalsAbsolute\",\"PressureDropHotSideUOM\":\"KilopascalsAbsolute\",\"PressureDropColdSideAllowedUOM\":\"KilopascalsAbsolute\",\"PressureDropColdSideUOM\":\"KilopascalsAbsolute\",\"TotalHeatExchangedUOM\":\"KiloWatts\",\"UServiceUOM\":\"WATTS_M2K\",\"UCleanUOM\":\"WATTS_M2K\",\"TotalHeatTransferAreaUOM\":\"MeterSqrd\",\"LMTDUOM\":\"Kelvin\",\"DesignPressureUOM\":\"BarGauge\",\"TestPressureUOM\":\"BarGauge\",\"MaxDesignTemperatureUOM\":\"Celsius\",\"MinDesignTemperatureUOM\":\"Celsius\",\"UnitWeightEmptyUOM\":\"KiloGrams\",\"UnitWeightFloodedUOM\":\"KiloGrams\"}"
},

[01/23/2023 12:40:26] InventorCoreConsole.exe Information: 0 : HeartBeating every 50000ms.
[01/23/2023 12:40:26] InventorCoreConsole.exe Information: 0 : Parameter to change: Model_Name:GLD-013
[01/23/2023 12:40:26] InventorCoreConsole.exe Information: 0 : Parameter to change: FluidNameHotSide:ISO VG 46
[01/23/2023 12:40:26] InventorCoreConsole.exe Information: 0 : Parameter to change: FluidNameColdSide:Eau

Re: Automate Assembly from a JSON?

zorin_andrey — Thu, 24 Jul 2025 19:55:05 GMT

You can create a form that lets you select a JSON file. Then you parse it inside the Addin and use the data to manipulate your model. That's how I did it. But we dont use iLogic scripts. All code responsible for creation of Parts is inside the Addin (in C#). i used Newsoft.JSON library from NuGet repo for JSON parsing.

Re: Automate Assembly from a JSON?

rzsla — Fri, 25 Jul 2025 09:01:17 GMT

Hi,

how do you pass these parameters into inventor after deserialise? And proceed to run the automation after passing these parameters?

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