Rotational blend, tangency issues...

[drvogler]

Guys,

Having some trouble getting the tangency conditions right on this sample corner.

Take a look at this corner, and tell me why the left (larger radius) corner is bulging out, even though all tangencies are set? The smaller radiaus corner is perfect, the larger one is goofy.

I'm sure I'm overlooking something obvious.

Or must this type of feature be created with a different geometry type?

Thanks in advance,

Dave



2009-06-18_163204_blend_test.prt.zip




Edited by: drvogler

 

[jsantangelo]

Will this work for you?

<div style="text-align: center;">http://www.screencast.com/t/Yo6viQDi
</div>
<div style="text-align: center;">http://www.screencast.com/t/Yo6viQDi
</div>
If the bandwidth exceed error pops up then you can download the SWF screen capture from here. <--Right click and "Save target as..." to download.


Here is the file. It is a WF4 file.

2009-06-18_184507_WF4_blend_test.zip



Edited by: jsantangelo

 

[drvogler]

James,

It looks great. Nice to see the whole creation method too!

Unfortunately, I'm on WF3 here though (corporate mandate). I can't open it. But your demo was top notch.

I was considering surfacing out the whole thing too, but it just _seems_ like it should be doable as a solid.

Anybody with WF3 wanna take a crack at it before I go into a surfacing frenzy?

Thanks,

Dave

 

[neuronex]

Hi drvogler,

Here's how I did it without surfacing:


Solid Extrude - Symmetric about the Front Datum Plane:


Sketch a curve on the Front Datum:


Insert > Sweep > Cut - Use the curve created in the previous step as the trajectory:



Done: