topic Re: Using Measure function within iPart. in Inventor Programming Forum

Using Measure function within iPart.

Anonymous — Thu, 25 Apr 2019 09:26:32 GMT

Good day,

I am busy setting up a simplified bolt & nut iPart (the assembly in IV is too cumbersome and heavy and fiddly). Anyone ever used the Measure function in an iPart to set a specific parameter, in this case to set the griplength which will then drive the bolt length....? If you have, how would one go about it, please?

Regards

Kobus

Re: Using Measure function within iPart.

LukeDavenport — Thu, 25 Apr 2019 09:40:40 GMT

Hi Kobus,

I would make the job easier by just (manually) creating a sketch with the normal Inventor tools, with a dimension (a reference dimension if necessary) for the grip length, the parameter for which you can refer to in another parameter like the bolt length. This is normal practice for Inventor parametric part design.

Hope this helps,

Luke

Re: Using Measure function within iPart.

Anonymous — Thu, 25 Apr 2019 09:51:20 GMT

Hi Luke,

I appreciate your answer thanks, however I want to use this in an assembly where I will have parts being bolted together and I do not want to create sketches to drive my grip length. First issue will be to either create a new part just for the sketch and parameter, or then the question would be in which part to have the sketch reside?

I am trying to make this as simple as possible so one will have a existing set of holes in the 2 or 3 parts, place the iPart of the bolt/nut/washer combo, select 2 surfaces (Measure function) which will determine the grip length and voila, the bolt part is inserted. The only step thereafter would be to constrain it and the insert will work well.

I am pretty sure somebody has done this already....my iPart / iLogic capabilities are just lacking...

Regards

Kobus

Re: Using Measure function within iPart.

bradeneuropeArthur — Thu, 25 Apr 2019 10:19:42 GMT

Hi,

For my understanding:

you need a (Part) ipart that looks like a bolt with nuts and washer, right.

Only the grip length is a parameter that needs to be filled in and that is all, and is first measured in the assembly file?

Of course the bolt diameter is a parameter fot the I part.

Regards

Re: Using Measure function within iPart.

Anonymous — Thu, 25 Apr 2019 11:02:18 GMT

Hi,

Yes you have it to a tee. The actual bolt size I will select from a dropdown list which is part of my table. If I see what the griplength is during this process I can select the bolt length from the dropdown. Maybe once I have this working, I can use the measured griplength in a formula to calculate the bolt length to use but for now I will be happy with just measuring the length during the process.

The "Bolted Connection" that comes with IV is just too cumbersome and when we create the assemblies with these bolt assemblies in them, more often than not we experience problems when opening it on another user's pc. Granted most of these issues are user errors....its also a time thing. It does make the assembly react slower as well, especially when we start having big assemblies, which happens most of the time.

Regards

Kobus

Re: Using Measure function within iPart.

bradeneuropeArthur — Thu, 25 Apr 2019 11:57:48 GMT

Hi,

One suggestion from my side:

Why don't you use a excel driven part instead.

Within excel you can create formulas easily to select a grip length within a range.

I use it often and it is much easier to define than with I-logic of I-parts...

Regards,

Re: Using Measure function within iPart.

chandra.shekar.g — Fri, 26 Apr 2019 06:32:29 GMT

@Anonymous,

For more understanding, can you please demonstrate the process with non confidential sample files ?

Thanks and regards,

Re: Using Measure function within iPart.

Anonymous — Fri, 26 Apr 2019 11:12:39 GMT

See attached file. Simply two plates being bolted together. The bolts are included and are iParts where you can select the length and specify the grip length manually. I want to replace the grip length manual entry with a prompt using the measure function to get the length between the 2 outer edges of the plates.

Regards

Kobus

Re: Using Measure function within iPart.

Anonymous — Fri, 26 Apr 2019 11:12:44 GMT

Regards

Kobus

Re: Using Measure function within iPart.

Anonymous — Fri, 03 May 2019 04:11:11 GMT

Good morning,

I have attached files as requested.

Regards

Kobus

Re: Using Measure function within iPart.

chandra.shekar.g — Fri, 03 May 2019 10:06:46 GMT

@Anonymous,

You can use attributesets to detect 2 outer edges of plate. Same outer edges can be used to measure grip length through Inventor API.

Can you please mention the edges in a image which can be used to measure length?

Thanks and regards,

Re: Using Measure function within iPart.

Anonymous — Fri, 28 Jun 2019 07:24:51 GMT

Good day,

Sorry for only replying now. Between running around on a project and trying to land new business its hectic.

So the idea would be when one bolts two plates of steel together, have a hole already where the bolting needs to be done....to then just select the start and end faces to specify the grip length. This should happen as part of the exercise when placing the single part bolt and nut.

I attached all the part and assembly files of what we already have and use. Also some screenshots of how it should work. Quite happy to arrange a Teams screenshare if needed - I assume you sit in a different timezone than me but I am willing to look at either early morning or late evening for me.

Regards

Kobus

Re: Using Measure function within iPart.

JhoelForshav — Fri, 28 Jun 2019 07:55:38 GMT

Hi @Anonymous ,

Can't you just measure the distance between start- and end face while selecting them for the placement and then set that value to the grip length parameter?

Something like this:

Dim oFace1 As FaceProxy = ThisApplication.CommandManager.Pick(SelectionFilterEnum.kPartFacePlanarFilter, "Select start face")
Dim oFace2 As FaceProxy = ThisApplication.CommandManager.Pick(SelectionFilterEnum.kPartFacePlanarFilter, "Select end face")
Dim oGripLength As Double = Math.Round(ThisApplication.MeasureTools.GetMinimumDistance(oFace1, oFace2), 5) *10
MsgBox(oGripLength & " mm")

Re: Using Measure function within iPart.

JhoelForshav — Fri, 28 Jun 2019 11:18:22 GMT

Hi again @Anonymous ,

I took the time to write an iLogic rule for you. Hopefully it's what you're looking for 🙂

Dim oAsm As AssemblyDocument = ThisDoc.Document
Dim oFace1 As FaceProxy = ThisApplication.CommandManager.Pick(SelectionFilterEnum.kPartFacePlanarFilter, "Select start face")
Dim oFace2 As FaceProxy = ThisApplication.CommandManager.Pick(SelectionFilterEnum.kPartFacePlanarFilter, "Select end face")
Dim oHole As FaceProxy = ThisApplication.CommandManager.Pick(SelectionFilterEnum.kPartFaceCylindricalFilter, "Select Circular reference")

Dim FactoryFile As String = "C:\VaultWorkingFolder\Designs\Temp\Jhoel\BoltingAssy\M12 Bolt Nut Washer.ipt" 'Full file path to iPart factory
Dim MemberFile As String = "C:\VaultWorkingFolder\Designs\Temp\Jhoel\BoltingAssy\TestMember1" & ".ipt" 'Full file path to iPart member

Dim oGripLength As Double = Math.Round(ThisApplication.MeasureTools.GetMinimumDistance(oFace1, oFace2), 5) *10
Dim oCustomArr(0) As String
oCustomArr(0) = oGripLength & " mm"

Dim oMember As ComponentOccurrence = oAsm.ComponentDefinition.Occurrences.AddCustomiPartMember(FactoryFile, _
ThisApplication.TransientGeometry.CreateMatrix(), MemberFile, ,oCustomArr)

Dim oZaxis As WorkAxisProxy
Call oMember.CreateGeometryProxy(oMember.Definition.WorkAxes.Item("Z Axis"), oZaxis)
Dim oInsPlane As WorkPlaneProxy
Call oMember.CreateGeometryProxy(oMember.Definition.WorkPlanes.Item("XY Plane"), oInsPlane)

oAsm.ComponentDefinition.Constraints.AddMateConstraint(oZaxis, oHole, 0, ,InferredTypeEnum.kInferredLine)
oAsm.ComponentDefinition.Constraints.AddMateConstraint(oFace1, oInsPlane, "2.5 mm")

If you run this rule from the main assembly you've attached previously you'll be asked to select start face, end face and hole.

The code will then place your bolt with desired grip length and constrain it in position 🙂

Re: Using Measure function within iPart.

Anonymous — Sat, 29 Jun 2019 14:44:58 GMT

Thanks a million, if ever you're in South Africa, I owe you a beer and a steak. We're going to put it all together, will keep you up to date.

Re: Using Measure function within iPart.

JhoelForshav — Sat, 29 Jun 2019 16:57:38 GMT

@Anonymous

Happy to help!😃

Good luck with your project!