How to connect rectangle to cylinder (easily)?

[j.pavlicek]

Hello,

I wonder if there is some easy way how connect revolved and extruded body both created from cross-section sketch.

My current approach:

But it tends me to create sketch every time. Is there some function which extrude face in direction of its normal vector "To Next"?

[admaiora · Accepted solution]

You can use Direct Edit

[-niels-]

@admaiora for some reason that didn't seem to work for me when the rectangle is tangent to the cylinder.

(it works when there is an offset)

@j.pavlicek instead of projecting each line separately you could use "project cut edges" to get them all at once then you can extrude the desired profile "to next".

[admaiora]

Yes. You are right.

[IgorMir]

Yes, it works.

You need to specify the face twice. (From both sides of the tangent line). Here is a Part1 in IV2020 format.

Cheers,

Igor.

P.S. Yet if the object edited is in a shape of an I-Beam - I too have a problem with direct editing of it. Part2 is showing the issue. But, with all honesty - I would do the design differently anyway.

Cheers,

Igor.

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@-niels- wrote:

@admaiora for some reason that didn't seem to work for me when the rectangle is tangent to the cylinder.

(it works when there is an offset)

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[JDMather]

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@j.pavlicek wrote:

I wonder if there is some easy way ...

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Attach your *.ipt file here.

[-niels-]

@IgorMir 

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@IgorMir wrote:

Yes, it works.

You need to specify the face twice. (From both sides of the tangent line).

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I tested it a bit more, it doesn't work in IV2018, but in IV2021 you have an extra option that makes it possible:

Turning off "automatic blending" made it work. (guess this is available from IV2020 onward, not sure about IV2019)

A screenshot to show IV2018 doesn't have that option:

[IgorMir]

Hi Niels;

Thanks for looking into it. For me, personally - that model is pure a curiosity one. As I had said before - I wouldn't have modeled the item that way anyway. But, since we are in this discussion - here is a Part2 in IV2020 format.

In here the adjoining members are I-Beams. And if it is tangential to the round body - the Direct edit fails. Deselecting "Automatic Blending" option makes things even worth.

Yet, as I have said before - if the adjoining part is just a simple rectangle - the Direct Edit works as expected.

I believe -  guys at the Inventor developing team might want to have a look at it.

Cheers,

Igor.

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@-niels- wrote:

@IgorMir 

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@IgorMir wrote:

Yes, it works.

You need to specify the face twice. (From both sides of the tangent line).

---

I tested it a bit more, it doesn't work in IV2018, but in IV2021 you have an extra option that makes it possible:

Turning off "automatic blending" made it work. (guess this is available from IV2020 onward, not sure about IV2019)

A screenshot to show IV2018 doesn't have that option:

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[-niels-]

@IgorMir Tried your part and can confirm that an i-beam profile acts worse indeed:

Also agree that this might be interesting for @johnsonshiue and the Inventor team to look at in regards to the direct edit functionality.

(as there are many ways to model this so it works)

[admaiora]

@-niels-  no.. (I was thinking the same..)

that option just turn of the face adaption.

If you have a cylender with an axial  hole..doesn't work.