Inventor General Discussion

Inventor General Discussion

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u067820y
Posts: 18
Registered: ‎01-16-2011
Message 1 of 9 (2,162 Views)
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Ball Joint Drawing/Model

2162 Views, 8 Replies
02-14-2011 12:11 AM

Ball Joint.JPG

 

Hi All,

Does anyone have an engineering drawing with dimensions for a ball joint? A .ipt file of a ball joint actuator will be the best. Thanks all.

 

Distinguished Contributor
smjanows
Posts: 436
Registered: ‎08-06-2004
Message 2 of 9 (2,120 Views)

Re: Ball Joint Drawing/Model

02-14-2011 09:44 AM in reply to: u067820y

What class is this for?

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u067820y
Posts: 18
Registered: ‎01-16-2011
Message 3 of 9 (2,035 Views)

Re: Ball Joint Drawing/Model

02-20-2011 05:20 PM in reply to: smjanows

The use if just for viewing the inner assembly of a ball joint model. Purely to understand how the ball joint models work.

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JDMather
Posts: 26,518
Registered: ‎04-20-2006
Message 4 of 9 (2,030 Views)

Re: Ball Joint Drawing/Model

02-20-2011 06:28 PM in reply to: u067820y

Should take about an hour to model up.  Are you still looking?

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Dennis_Jeffrey
Posts: 1,369
Registered: ‎12-15-2003
Message 5 of 9 (1,969 Views)

Re: Ball Joint Drawing/Model

02-21-2011 12:38 PM in reply to: u067820y

Open the attached 2011 model, then Activate Contact Solver on your system.

 

a-002057.png

 

a-002058.png

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Namoi1
Posts: 42
Registered: ‎08-27-2013
Message 6 of 9 (519 Views)

Re: Ball Joint Drawing/Model

11-21-2013 01:33 PM in reply to: Dennis_Jeffrey

Dennis

 

can't use contact solver on a part like this, as there isn't any interference.  But there is still need to restrict the ball.

 

I got a problem though.  The way I've constrained it in this model works fine, but once I put it in a larger assembly make it flexible it goes somewhat haywire.

 

For starters I can remove the angle constraint, but on adjusting the flexible assembly the design doctor says there is an error in this sub assembly, drilling down to it and looking at the constraints shows no problem.  Hit the update button or rebuild, sometimes need to do this a couple of times, and the doctor goes away.

 

Reactivate the angle constraint and it sends my assembly flying all over the place.

 

Make me think I'm doing something wrong, but I can't figure it out.  The geometry of the top assembly means that the angle constrain and it's limits are virtually irrelevant, so can't see why the top assembly should fall apart like it does.

 

C-H.

using IV 11
C-H
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JDMather
Posts: 26,518
Registered: ‎04-20-2006
Message 7 of 9 (510 Views)

Re: Ball Joint Drawing/Model

11-21-2013 01:59 PM in reply to: Namoi1

I would delete that angle constraint - place in assembly, set to Flexible and let the mating part restrict the degrees of freedom.

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Active Contributor
Namoi1
Posts: 42
Registered: ‎08-27-2013
Message 8 of 9 (500 Views)

Re: Ball Joint Drawing/Model

11-21-2013 02:49 PM in reply to: JDMather
when you say the mating part, you mean in the top level ****. yes? if I got that right, how do you suggest I restrict the DOF, with a contact set, or with an angle constraint like the one in the sub ****. or something else again?
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C-H
Active Contributor
Namoi1
Posts: 42
Registered: ‎08-27-2013
Message 9 of 9 (499 Views)

Re: Ball Joint Drawing/Model

11-21-2013 02:50 PM in reply to: Namoi1
don't know why but **** replaced **** with a full stop after it.
using IV 11
C-H
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