Inventor General Discussion

Reply
Valued Contributor
greetinginventor
Posts: 52
Registered: ‎07-02-2011
Message 1 of 6 (295 Views)
Accepted Solution

Patterning around oval

295 Views, 5 Replies
12-13-2012 11:23 AM

Hi,

I can't understand how to pattern a point around an oval!

 

If it is a feature, I can use sweep around the oval being a path. If I'm in a 2D sketch, then I can't use sweep and path. If I use, say, circular patterning, it won't give the desired result for my path is an oval!

 

What is the solution please?

Attach your ipt file here.

 

In general - (almost) never pattern sketch entities.
Pattern solid features instead.

 

Information on curve-driven pattern pg 24

http://home.pct.edu/~jmather/AU2006/MA13-3%20Mather.pdf

 

What is the logic behind your design intent to pattern lines around an oval?

I don't understand this?

Valued Mentor
mpatchus
Posts: 471
Registered: ‎10-22-2008
Message 2 of 6 (288 Views)

Re: Patterning around oval

12-13-2012 11:41 AM in reply to: greetinginventor

It would help to know what you are trying to accomplish. Maybe an example part with the feature you are trying to recreate.

 

You can create a rectangular pattern of a feature along a curved edge as shown here.

Oval Pattern.JPG

Mike Patchus

Inventor 2012 SP3 ~ Vault Pro 2013
==================
Lenovo D20 Workstation Intel Xenon E5640@2.67GHz (2)
Win 7, 24gb RAM, NVIDIA Quadro FX 3800

Did you find this reply helpful ? If so please use the Accept as Solution or Kudos button below. :smileyhappy:
Valued Contributor
greetinginventor
Posts: 52
Registered: ‎07-02-2011
Message 3 of 6 (281 Views)

Re: Patterning around oval

12-13-2012 11:50 AM in reply to: mpatchus

Well, what I want to do is (perhaps) very simple, only I don't know the right way of it.

 

I want to pattern a vertical line around an oval, every 50mm, on a 2D sketch.

 

As I failed to pattern the line, I decided to find out how to put a point on an oval path in a 2D sketch, every 50mm, then draw a perpendicular line on each point. Well not that accurate solution but at least to finish what I need!

 

The best is to know how to command Inventor to pattern perpendicular-to-oval lines, around the oval path, every Xmm (steps).

 

Please help me out of problem :-)

 

*Expert Elite*
JDMather
Posts: 26,807
Registered: ‎04-20-2006
Message 4 of 6 (276 Views)

Re: Patterning around oval

12-13-2012 11:52 AM in reply to: greetinginventor

Attach your ipt file here.

 

In general - (almost) never pattern sketch entities.
Pattern solid features instead.

 

Information on curve-driven pattern pg 24

http://home.pct.edu/~jmather/AU2006/MA13-3%20Mather.pdf

 

What is the logic behind your design intent to pattern lines around an oval?

I don't understand this?

Please mark this response as "Accept as Solution" if it answers your question.
-----------------------------------------------------------------------------------------
Autodesk Inventor 2014 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
Valued Contributor
greetinginventor
Posts: 52
Registered: ‎07-02-2011
Message 5 of 6 (261 Views)

Re: Patterning around oval

12-13-2012 12:39 PM in reply to: JDMather

I attached the ipt.

 

It is over a technique I'm trying to learn now for months, and every time failed!

 

I need to model the exterior body as a surface, then break it to ribs, then cnc machine the ribs, next fill inside with styrofoam and finally create a fiberglass mold out of it.

 

I can model the surfaces I need, but I'm not good in turning them to to ribs that I then machine and assemble to have something close to the surface.

 

As you can see in the part, the vertical ribs are "centerwise", I think if they were vertical to the bottom oval shape, the result could be more accurate.

 

Well, may be I'm going totally the wrong way.

 

Will be very thankful if you guide me out of it, it is half a year unsolved question!

 

Valued Contributor
greetinginventor
Posts: 52
Registered: ‎07-02-2011
Message 6 of 6 (215 Views)

Re: Patterning around oval

12-14-2012 02:06 AM in reply to: greetinginventor

Question is closed, thank you everybody!

 

The answer (the needed technique) is in the vacuum tutorial by JDMather. I passed it months ago but strange, it takes time that the brain learns to compose a solution from already learned lessons.

 

Thanks again.

 

Announcements
Are you familiar with the Autodesk Expert Elites? The Expert Elite program is made up of customers that help other customers by sharing knowledge and exemplifying an engaging style of collaboration. To learn more, please visit our Expert Elite website.
Need installation help?

Start with some of our most frequented solutions or visit the Installation and Licensing Forum to get help installing your software.