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Extrude a 3D sketch

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Message 1 of 20
ysnyder
2544 Views, 19 Replies

Extrude a 3D sketch

ysnyder
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Hey, 

 

 I am trying to extrude this 3D sketch into the solid to cut out 0.2mm of material. I am new to using 3D sketches in Inventor. Can someone please show me what I am doing wrong? Thank you for your time. 

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Extrude a 3D sketch

Hey, 

 

 I am trying to extrude this 3D sketch into the solid to cut out 0.2mm of material. I am new to using 3D sketches in Inventor. Can someone please show me what I am doing wrong? Thank you for your time. 

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19 REPLIES 19
Message 2 of 20
JDMather
in reply to: ysnyder

JDMather
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I am not at my Inventor 2022 machine at the moment, but can you use the sketch to Split the face and then Thicken/Offset (Cut or Add) the split face?

 

It looks like there are some anomalies Left to Right (not symmetrical about XZ plane).


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I am not at my Inventor 2022 machine at the moment, but can you use the sketch to Split the face and then Thicken/Offset (Cut or Add) the split face?

 

It looks like there are some anomalies Left to Right (not symmetrical about XZ plane).


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Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


Message 3 of 20
SharkDesign
in reply to: ysnyder

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Can't open this part anyway. 'version9' is missing.

I'm assuming this is a derived part?

You need to either break or suppress the link, or include version9 as well. 

 

 

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Can't open this part anyway. 'version9' is missing.

I'm assuming this is a derived part?

You need to either break or suppress the link, or include version9 as well. 

 

 

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Message 4 of 20
SharkDesign
in reply to: ysnyder

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I returned to my computer and it had loaded, but is unresolved. 

 

You have gaps in your sketch, so that's not a good start. Where has the 3D sketch come from? Is that projected from the part that is missing?

jameswillo_0-1632940925541.png

 

jameswillo_2-1632941025008.png

 

jameswillo_3-1632941074113.png

 

 

 

 

 

 

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I returned to my computer and it had loaded, but is unresolved. 

 

You have gaps in your sketch, so that's not a good start. Where has the 3D sketch come from? Is that projected from the part that is missing?

jameswillo_0-1632940925541.png

 

jameswillo_2-1632941025008.png

 

jameswillo_3-1632941074113.png

 

 

 

 

 

 

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Message 5 of 20
SharkDesign
in reply to: ysnyder

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This is not connected either.

 

jameswillo_4-1632941162158.png

 

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This is not connected either.

 

jameswillo_4-1632941162158.png

 

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Message 6 of 20
SharkDesign
in reply to: ysnyder

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Once your sketch is fixed so it's a complete loop, you can use ruled surface to extrude the loop. 

Depending on what you want to do next, you can split the part. cut the part, thicken the surface and cut that, turn the surface into a solid and cut the lot out. It's up to you. 

I used the UCS Y Axis as the vector.

 

jameswillo_5-1632941283520.png

 

P.S. in ruled surface you need the third option down on the left as shown in the image above.

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Once your sketch is fixed so it's a complete loop, you can use ruled surface to extrude the loop. 

Depending on what you want to do next, you can split the part. cut the part, thicken the surface and cut that, turn the surface into a solid and cut the lot out. It's up to you. 

I used the UCS Y Axis as the vector.

 

jameswillo_5-1632941283520.png

 

P.S. in ruled surface you need the third option down on the left as shown in the image above.

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Message 7 of 20
SharkDesign
in reply to: ysnyder

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OK, to get the 2mm cut you want. 

 

I had to use two ruled surfaces, one in each direction because your 3D sketch is not quite in the right place.

jameswillo_2-1632941737381.png

 

Use the ruled surface to split the face (once with each ruled surface).

jameswillo_3-1632941787484.png

If you turn off the visibility of the surfaces, you should now have this:

jameswillo_4-1632941821249.png

 

Then try thicken/offset

jameswillo_5-1632941892128.png

 

 

Is this the shape you want?

jameswillo_7-1632941981345.png

 

 

You'll need to clean up your geometry first for this to work properly.

 

 

 

 

 

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OK, to get the 2mm cut you want. 

 

I had to use two ruled surfaces, one in each direction because your 3D sketch is not quite in the right place.

jameswillo_2-1632941737381.png

 

Use the ruled surface to split the face (once with each ruled surface).

jameswillo_3-1632941787484.png

If you turn off the visibility of the surfaces, you should now have this:

jameswillo_4-1632941821249.png

 

Then try thicken/offset

jameswillo_5-1632941892128.png

 

 

Is this the shape you want?

jameswillo_7-1632941981345.png

 

 

You'll need to clean up your geometry first for this to work properly.

 

 

 

 

 

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Message 8 of 20
SharkDesign
in reply to: ysnyder

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Accepted solution

Alternatively, if this is a socket and another part is fitting into it, a much easier way is to use this method:

https://youtu.be/dvrMA15pj2ohttps://youtu.be/dvrMA15pj2o

 

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How to cut profiles into other parts that are too difficult to do with a simple cut. Can also be done with imported geometry.
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Alternatively, if this is a socket and another part is fitting into it, a much easier way is to use this method:

https://youtu.be/dvrMA15pj2ohttps://youtu.be/dvrMA15pj2o

 

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How to cut profiles into other parts that are too difficult to do with a simple cut. Can also be done with imported geometry.
Message 9 of 20
SharkDesign
in reply to: ysnyder

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Depending on where that sketch is coming from, you could just put it on an offset plane as 2d and extrude it into the part as a surface, split and thicken. Then you don't even need a 3d sketch.

 

 

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Depending on where that sketch is coming from, you could just put it on an offset plane as 2d and extrude it into the part as a surface, split and thicken. Then you don't even need a 3d sketch.

 

 

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Message 10 of 20
JDMather
in reply to: ysnyder

JDMather
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Why is this sketch not centered?

Why is the sketch plane not parallel to the XY Plane?

JDMather_0-1632942855150.png

JDMather_1-1632942883653.png

 

 


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Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


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Why is this sketch not centered?

Why is the sketch plane not parallel to the XY Plane?

JDMather_0-1632942855150.png

JDMather_1-1632942883653.png

 

 


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Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


Message 11 of 20
ysnyder
in reply to: SharkDesign

ysnyder
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This 3D sketch originated from this part. 

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This 3D sketch originated from this part. 

Message 12 of 20
ysnyder
in reply to: JDMather

ysnyder
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That was not intentional. I am not sure how that happened this part was derived and it should have been on center. Is there a way to move the part to the center position? 

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That was not intentional. I am not sure how that happened this part was derived and it should have been on center. Is there a way to move the part to the center position? 

Message 13 of 20
ysnyder
in reply to: ysnyder

ysnyder
Contributor
Contributor

The file is here. 

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The file is here. 

Message 14 of 20
JDMather
in reply to: ysnyder

JDMather
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Consultant

@ysnyder wrote:

The file is here. 


What diameter is the circle in Sketch3 in this file?


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@ysnyder wrote:

The file is here. 


What diameter is the circle in Sketch3 in this file?


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Certified SolidWorks Professional


Message 15 of 20
ysnyder
in reply to: SharkDesign

ysnyder
Contributor
Contributor

Thank you for your input, it was very helpful. How did you get the thicken command to work? My geometry is fixed and I used the ruled surface command. I also split the surface, but my thicken command keeps failing... Any advice?  

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Thank you for your input, it was very helpful. How did you get the thicken command to work? My geometry is fixed and I used the ruled surface command. I also split the surface, but my thicken command keeps failing... Any advice?  

Message 16 of 20
SharkDesign
in reply to: ysnyder

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Is it pointing in the right direction and is it set to cut as shown in my
image?
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Is it pointing in the right direction and is it set to cut as shown in my
image?
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Message 17 of 20
ysnyder
in reply to: SharkDesign

ysnyder
Contributor
Contributor

Sorry for the delayed response. Yes, I did what you showed. By any chance do you have the part file that you used in your example? That way I can check if there is anything I missed. 

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Sorry for the delayed response. Yes, I did what you showed. By any chance do you have the part file that you used in your example? That way I can check if there is anything I missed. 

Message 18 of 20
SharkDesign
in reply to: ysnyder

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Maybe, I can't check until tomorrow night though 

 

 

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Maybe, I can't check until tomorrow night though 

 

 

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Message 19 of 20
ysnyder
in reply to: SharkDesign

ysnyder
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Thank you for all your help so far. 

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Thank you for all your help so far. 

Message 20 of 20
SharkDesign
in reply to: ysnyder

SharkDesign
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Here it is. Bare in mind that I did this to demonstrate how to do it. I butchered your sketches to get them working so it won't be the exact shape you were after. 

 

 

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Here it is. Bare in mind that I did this to demonstrate how to do it. I butchered your sketches to get them working so it won't be the exact shape you were after. 

 

 

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