Inventor shaft generator with custom geometry

[rb]

Hello,

I recently had a look on couple of videos describing the shaft generator. It seems like a great tool and I especially like the calculation and graph part of the tool.

I don't have access to Inventor from home which means I couldn't play with this feature myself yet...

My question is if it is possible to create a shaft with the generator, customize it with sketch/project geometry/extrude/etc. and then reopen the modified shaft in the generator and evaluate the custom shaft shape in the calculation and graph parts of the feature?

What I try to say is that I want to use the calculation/graph features to evaluate my non standard shafts!

I can't use the standard section designs (cylinder, cone or polygon) to get the geometry that I need. I need to sketch it.

Another example. If I have a dia. 100 mm shaft and in the centre of it, I add another section at dia. 500 mm that I use to project a spur gear on it as a feature. Can I then evaluate that shaft including the spur gear or will the calculation/graph only consider the shaft as it was created in the generator?

[EvellinDichev]

Hello mate,
In shaft generator you can define all aspects of the shaft, generate the geometry, and apply any necessary calculations. So yes you can generate it "custom like". As for the spur gear and etc, basically the calculations that are made there are to calculate loads and supports on the shaft.

[rb]

Hello and thanks for your friendly reply.

Does this mean that the calculation/graph feature will consider the custom shape/geometry of the customized shaft? Meaning if my custom shaft with strange geometry is much stronger than just the standard round shaft that I am starting from in the shaft generator before I add my custom shapes, will the calculation benefit from this? Or is it only considering the cylindrical shape that itself created?

[rb]

Ok, here is to better explain what I mean.

Here is a shaft that I created with the "Inventor shaft generator" and then I have modified the outer diameter with a sketch to create some custom shape:

Once I try to edit the shaft with the shaft editor, the shaft is losing its custom shape and the original shaft as created in the generator is only considered:

Is it possible to calculate the custom shaped shaft and especially get hold of the graphs?

If I would rationalize and only consider the shaft without its custom body, I guess the result wouldn't be reliable as the mass weight and shaft strength probably would be quite different with or without the shaft body?

[EvellinDichev]

I think yes but you have to thru shaft component generator like here. To be honest i have not tried it but i guess this is the way to do it. https://help.autodesk.com/view/INVNTOR/2014/ENU/?guid=GUID-9BDDFABF-0A38-4A10-AFDC-4D5450A51DD6 

[rb]

I don't think the provided link gives any guidance on how to consider my custom sketch in my shaft calculations? Please explain.

[EvellinDichev]

Make a normal shaft, and then by using shaft component generator, create your section and then, there you will be able to make the necessary calculations. This is my idea, what to try.

[rb]

From the Inventor help file:

Use the Shaft Component Generator to:

Design and insert shafts with unlimited number of sections (cylinders, cones, polygons) and features (fillets, chamfers, threads, and more).

Design shaft of a hollow shape.

Insert features (chamfers, fillets, threads) onto the inner bores.

Split shaft cylinder and retain the length of the shaft section.

Save shafts the Templates Library.

Add unlimited number of loads and supports to your shaft design.

It can only create cylinders, cones and polygons. Not a custom shape like the one example I showed in a previous post. Do you agree?

[EvellinDichev]

It says and more, so open inventor, and check it. 🙂 otherwise i am unable to help you. Atleast i gave a try.

[rb]

As you can see in my post from 08-21-2023 08:21 AM, I have tried and I continue to try but no, I can't find a way to solve it.

I would appreciate if someone who knows could comment whether this is possible or if there is some workarounds.

Thank you.

[rb]

What is the function "Geometry Definition Dialog Box", can that somehow be used for this purpose?

https://help.autodesk.com/view/INVNTOR/2023/ENU/?guid=GUID-226E8403-62CB-4D0A-9EB6-56D59C91EE18

[Onur06_]

@rb Hi, Have you found something to solve? I have some issue that I could not find anything about it.