Example of Mixing Synchronous and Ordered

by MLombard ‎06-11-2015 09:34 AM - edited ‎06-11-2015 06:09 PM (2,688 Views)

I came across a cool technique this week while talking with Art Patrick about a part I was trying to make for a sample model. It has 3 mount points, and a bar frame connecting the mounts. In the end, Art had it set up so that the mount points were synchronous, and a 3D sketch connected the pieces, and drove some ordered sweeps.

 

Here are some views of the part. It's a little tricky to visualize, because none of the bar pieces are in plane, if you use the largest mount point as a reference.

 

 

 

I started out with 3 mount points located where they needed to be in the assembly, but these are all synchronous bodies in a single part. Using this geometry as reference is tough, so you can use a 3D sketch to simplify things. 3D sketches are still relatively new in Solid Edge, but there are tons of ways you can use them.

 

In this case, transition to Ordered and then draw a 3D line from center to center on the mount point tubes. Then draw 3D lines from midpoint to midpoint on two of the mounts.

 

The next part gets tricky. I wanted the lower bar to be planar with the top bar, but didn't want just a triangle. Using a plane complicates things, because then you need multiple 3D sketches. So draw a vertical line from a random point on the top 3D line. Then you can draw the other lines using the endpoint of the vertical line as a reference.

 

Next make planes Normal To Curve to make an Extrusion on the top and a Sweep on the bottom.

 

Now comes the cool part. Since the mounts are synchronous, you can move them synchronously, and the bars will update. You can make synchronous edits to the short tubes that would make your ordered head spin, such as angling the mounts.

 

I was able to do this by selecting the synchronous features in the Pathfinder, and using the steering wheel.

 

Next time you have a part that looks like synchronous might work on it, but it also has features that will probably require ordered, give this a try. Model the synchronous part, switch to ordered, and keep going. Make sure the connection to the synchronous part of the model is solid, then you can "drive" the model with the steering wheel, and the ordered portion updates as well.

Comments
by Solution Partner Phenom Solution Partner Phenom
on ‎06-11-2015 05:16 PM

Mat,

Great example. It would be useful if you could share the part file so that others could work through this example.

Cheers

Mark

by MLombard
on ‎06-11-2015 06:11 PM

Ok, example file attached.

  1. Open
  2. expand synchronous in Pathfinder
  3. select Protrusion 3 in Pathfinder
  4. drag arrow on steering wheel
  5. watch the tubes update as you drag
by Phenom
on ‎06-12-2015 08:34 AM

Hi.

 

 

which version of SE did You use therfore?

Could it be ST8?

 

regards

Wolfgang

 

by MLombard
on ‎06-12-2015 09:31 AM

Yes, this is ST8.

by Phenom
on ‎06-12-2015 09:56 AM

Hi Matt,

thanks, so I have to wait for getting my ST8 license till I can open it.

 

but in the meantime I did it by myself.

 

Great job and a real good example how to use mixed mode in Solid Edge!

 

regards

Wolfgang

 

 

 

 

by Phenom
on ‎06-25-2015 10:29 AM

Matt-

I too would like to see a ST7 version. If you have the time!

 

Ryan

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