Issue with Revolve

[chris13]

I have a simple radius that is being revolved on the inside radius of a part.  The end point of revolved radius is 10mm from the edge of the part.  The axis of the revolve is the axis of the inside radius.  Once the revolve is completed, I keep ending up with a revolve that ends 8.5mm, rather than 10mm, from the edge of the part.  Can anyone see what is happening here and what I can do to remedy this??  

The center of the inside radius and work plane for the revolved sketch are both offset 1mm from the plane of the part.

Thanks!

Chris

[chris13]

I have a simple radius that is being revolved on the inside radius of a part.  The end point of revolved radius is 10mm from the edge of the part.  The axis of the revolve is the axis of the inside radius.  Once the revolve is completed, I keep ending up with a revolve that ends 8.5mm, rather than 10mm, from the edge of the part.  Can anyone see what is happening here and what I can do to remedy this??  

The center of the inside radius and work plane for the revolved sketch are both offset 1mm from the plane of the part.

Thanks!

Chris

[mluterman]

Yeah, and when you turn it into a "Join" instead of a "Revolved Cut", it does show 10mm (.394). Take a look at that in your model...when you go through the steps, you'll see both the 8.5mm & 10mm "witness arcs" when you're in the command....weird. I don't have time  to look further right now.

[mluterman]

Yeah, and when you turn it into a "Join" instead of a "Revolved Cut", it does show 10mm (.394). Take a look at that in your model...when you go through the steps, you'll see both the 8.5mm & 10mm "witness arcs" when you're in the command....weird. I don't have time  to look further right now.

[chris13]

Yep, that's what I'm seeing...

[chris13]

Yep, that's what I'm seeing...

[mluterman]

When you make the middle solid (suppress Extrusion 2) and break all unresolved links, it does give you the correct result (at least for that 10mm entrance radius).

[mluterman]

When you make the middle solid (suppress Extrusion 2) and break all unresolved links, it does give you the correct result (at least for that 10mm entrance radius).

[chris13 · Accepted solution]

So, I flipped the sketch 90 degrees and like magic, it came out fine.  Never was able to put my finger on why it was off.

[chris13 · Accepted solution]

So, I flipped the sketch 90 degrees and like magic, it came out fine.  Never was able to put my finger on why it was off.

[kacper.suchomski]

The Revolve circle and the element circle do not share a common axis. Mathematics 🙂

[kacper.suchomski]

The Revolve circle and the element circle do not share a common axis. Mathematics 🙂

[kacper.suchomski]

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@chris13 wrote:

So, I flipped the sketch 90 degrees and like magic, it came out fine.  Never was able to put my finger on why it was off.

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You just have everything on one axis now.
When my video loads, you'll see that you didn't position the sketch correctly and consequently didn't keep the features of the model in line.

[kacper.suchomski]

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@chris13 wrote:

So, I flipped the sketch 90 degrees and like magic, it came out fine.  Never was able to put my finger on why it was off.

---

You just have everything on one axis now.
When my video loads, you'll see that you didn't position the sketch correctly and consequently didn't keep the features of the model in line.