Sweep a profile

[RBPrice]

Here is my latest attempt to get this to work. Everytime I SWEEP the profile it rotates 90 deg. depending on the orientation of the UCS

10 DP TOOTH PROFILE.dwg

[Dadgad]

Might this be what you are hoping to do?.

Edited January 30, 2013 by Dadgad

[ReMark]

Here is my latest attempt to get this to work. Every time I SWEEP the profile it rotates 90 deg. depending on the orientation of the UCS

I realize that you are very, very fond of the SWEEP command since you continue to try to use it but if you would just, this once, resort to using EXTRUDE instead you'll save yourself a lot of headaches, not to mention time and energy. Each time I have worked with one of your posted drawings I get the result you are looking for the first time out using EXTRUDE. Isn't it about time we move on to the next aspect of this project?

 

Here's another option. Copy the profile to the top of your polyline. Now use the LOFT command. Note that this will result in a lofted surface.

[Dadgad]

The ones shown in my post were lofted, but they are solids, and they have not rotated, which RB was unhappy about in his last post.

I exploded the regions and joined the resultant polylines with the pedit command. I copied that CLOSED polyline to the midpoint

and the endpoint at the top of the line. I specified NO for ALIGNMENT and TWIST while using the loft command. In that way when swept the cross sections did not rotate to self align.

Edited January 30, 2013 by Dadgad

[ReMark]

Sounds like too much work Dadgad. Has to be a better way.

 

And there is......SURFSCULPT.

[Dadgad]

Sounds like too much work Dadgad. Has to be a better way.

 

And there is......SURFSCULPT.

 

Not so much really, it all goes down within the context of the LOFT command run once, but you need to tweak it along the way.

 

I don't doubt that there is, just trying to address the specific issue in that post, as

opposed to a more holistic assessment of the exercise as a whole, which has left me in the dust.

Tend to avoid surfaces as much as possible, don't have any call for them in my usual work.

Your last post just put a big smile on JD's face though, good job!

[ReMark]

SURFSCULPT results in a solid. No tweaking required.

[RBPrice]

Good Morning Gentlemen - and thanks for all your contributions to my education. I did get results with the LOFT command that produced a smooth transition from one element to the other with smooth surfaces in between. Dadgad - are you suggesting that the tooth profiles should be polylines rather than regions - maybe that was some of my problem.

 

I will try to create the whole gear later today and post it.

 

Thanks a bunch for your help.

 

Bob Price

[ReMark]

On the left is the result of lofting two profiles and combining them with two regions using the SURFSCULPT command to form a solid. On the right is a section thru the solid done using the SLICE command.

 

I too much prefer the resultant object over the one created using the EXTRUDE command. I did not bother to use the SWEEP command.

[Dadgad]

Good Morning Gentlemen - and thanks for all your contributions to my education. I did get results with the LOFT command that produced a smooth transition from one element to the other with smooth surfaces in between. Dadgad - are you suggesting that the tooth profiles should be polylines rather than regions - maybe that was some of my problem.

 

I will try to create the whole gear later today and post it.

 

Thanks a bunch for your help.

 

Bob Price

 

Yeah, the cross sections are better as closed polylines, in my opinion.

Specify NO to alignment and also to TWIST. In the settings option you can choose RULED, which I usually favor,

but for this SMOOTH worked the best. You can also change the loft defining parameters after it has been lofted

with the drop down menu on the object.

[RBPrice]

More good advice - super

 

Thanks muchly