Inventor General Discussion

Inventor General Discussion

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Valued Contributor
brian
Posts: 61
Registered: ‎07-20-2005
Message 1 of 4 (183 Views)

Help Req, Roller Door - Assm Follow Path?

183 Views, 3 Replies
06-27-2012 05:11 PM

Hi guys, Im under urgent deadlines and having brain fade. I Thought this would be easy to do, but for the life of me i cant get it working now...

 

I want to create a simple roller door by using some flat panels and driving them around a sketch as per the image shown. I have a surface as the sketched path and will add multiple instances of the panel to make the length but cant seem to fin an easy way to have all the panels follow around the corner?

 

Anyone have any ideas?

 

Thanks much :smileyhappy:

 

Brian

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blair
Posts: 4,084
Registered: ‎11-13-2006
Message 2 of 4 (161 Views)

Re: Help Req, Roller Door - Assm Follow Path?

06-27-2012 10:52 PM in reply to: brian

Transitional Constraint?

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Valued Contributor
brian
Posts: 61
Registered: ‎07-20-2005
Message 3 of 4 (158 Views)

Re: Help Req, Roller Door - Assm Follow Path?

06-27-2012 11:25 PM in reply to: brian

Yeah thats what I thought as well, however I cant get the multiple instances of the panel following the ath with a transitional constraint.....

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sbixler
Posts: 1,885
Registered: ‎09-15-2003
Message 4 of 4 (145 Views)

Re: Help Req, Roller Door - Assm Follow Path?

06-28-2012 04:38 AM in reply to: brian

The one I created a year ago or so is on my home computer, so I will have to go on memory here: you will need to have a surface representing the hinge/roller at each section joint, and this will be constrained to your path surface using a transitional constraint.  Then, of course, the sections are constrained to each other at the hinge.  In order to avoid flipping sections 180°, you might also wish to constrain each section's angle relative to some part of the path surface, and give it a range that makes sense.  Mathematically it's a pretty busy constraint structure, so you can still occasionally run into issues, but this mostly works pretty well.  Pretty impressive when using a driven constraint to animate it.

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