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Adjustable O-ring

How can  I make a  an O ring adjustable . (made with a circle and  revolve feature)  Whats the best way to achives this as i have multiple assemblies of parts with square O-ring  grooves.I want to  make the Circular O-ring adjustable with the variables tool so that  it can fit the squared groove

 

9 REPLIES

Re: Adjustable O-ring

Since the O-Ring itself get deformed when in place I would suggest you to use an ellipse as revolving section and place the dimensions of the 2 main axis.

 

Make the O-Ring adjustable and use the 2 dimensions to control the "shape" of the oring in the socket.

 

If you use 2 planes to control the section elipse instead of the axis dimensions you could use the adjustamble part to match the socket.

Re: Adjustable O-ring

I know you didn't put it out there for reveiw, but an o-ring groove like that is a real B***H to machine accurately with a nice finish. If at all possible I would recomend trying to design that part with either a face groove type seal, or a stepped groove for the o-ring.

Re: Adjustable O-ring

I will have a  try.

 

Re: Adjustable O-ring

Keye (Builder)  thats true face O-ring grooves are  easier to machine however this is a existing part.   

Re: Adjustable O-ring

ellipse as revolving section and place the dimensions of the 2 main axis.

Do you mean sweep feature?
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Accepted by topic author Aaron54
‎09-25-2015 02:53 AM

Re: Adjustable O-ring

Hi,

 

@Fiorini and @Keye takes you on the right way! Smiley Wink Great suggestion!

 

You need a very "small" cheat when modeling "O" ring...

 

Here is a video:

 

BR,

Imics
http://solidedgest.wordpress.com/

Re: Adjustable O-ring

That is the most ingenious o-ring modeling method I have ever seen, @Imics.

____________________________________
--Scott Wertel, P.E.

Re: Adjustable O-ring

[ Edited ]

@swertel, From now on when an SE question comes up we should ask "What would @Imics do"?

Bruce Shand
ST9 MP8 - Insight - Win10 - K4200

Re: Adjustable O-ring

My Fiends,

Thanks! I always like to share my experience because this can be useful for all SE users and I always study something from you (community, @Tushar, @Ken, @bshand, @Sean...). Thanks, you give me the power!
Don't forget, these guys from dev (Laura, Dan, Art, Ricky, Aditya...) work for you, pls help them and build this community, I think we can be "the strongest". Go SE, Go Community!

BR,
Imics
http://solidedgest.wordpress.com/