3D movement of an object

[ulticad man]

just wondering how to make two objects move in there own plan im after designing a scissor lift as a project and would like to see it working before i go ahead with it. i know from using this site before that someone will have the answer. Thanks again.

[ReMark]

Could you verify one thing first? What software are you using? To my knowledge AutoCAD LT does not have 3D capability.

 

Do you just want to depict the scissors lift moving up and down? It would be possible by creating a series of BMP files and then using a second piece of software to animate it. I think it would take a lot of work though.

 

I think Inventor might be more suitable for the task but I'm not 100% sure. JDM would know.

 

See this thread...

 

http://www.cadtutor.net/forum/showthread.php?t=41323&highlight=animation

[Pablo Ferral]

Autocad 2010 has 2D constraints which would allow you to do some testing. You can download a 30 day trial from the Autodesk site.

[ReMark]

Pablo:

 

Could you provide an example of how using contraints would work in this situation with the scissors lift? You've got my interest peaked.

[JD Mather]

Pablo:

 

Could you provide an example of how using contraints would work in this situation with the scissors lift? You've got my interest peaked.

 

 

Drag one of the endpoints (or midpoint) of the upper horizontal line.

 

Of course I wouldn't use AutoCAD for this. Inventor can tell you how much force is required to lift a certain weight (changes with extension of the scissors) and FEA on the members.

 

I just realized that I left out setting the scissors cross to a specific length so that it cannot stretch in length (although until known that might be desired action).

ACAD 2010 Scissors.zip

[ReMark]

JDM:

 

Thank you for providing the above example. I finally had a chance to open it this morning (2/4) and see what you had done. The ability to be able to stretch the length (height of lift) in this case was actually a plus in my opinion. But you are right. Once the designer has determined the max height of extension of the lift it would seem prudent to "fix" this length as well.

[ulticad man]

cant veiw the drawing for some reason and im the kind of person that needs visual to completly understand and its autocad 2008 i normaly use 04 lt @ work because its all i need but i work on 08 on the laptop to try and get better.

[JD Mather]

You would need AutoCAD 2010 as the functionality exhibited in the file was not in earlier releases. I would recommend udating to a modern 3D CAD program like Autodesk Inventor.

[Pablo Ferral]

Nice One JD