How to create constraints for epic gear system

[luiww]

I have a sun, ring and planet gear in the assembly and would like to create a drive constraint to show how the gear motion interacts.  How to constraint the parts?  Attached are the assembly and part files.

[harco]

I haven't opened your assembly but I would assume that the motion constraint would do what you want.

You will need some basic constraints to hold positions inline and the planets in location but with freedom around the sun.

You will also need to work out the correct gear ratios to get it to perform as in reality.

Have  a look at the procedures for motion constraints at the link below.

http://help.autodesk.com/view/INVNTOR/2012/ENU/?caas=caas/vhelp/help-dev-autodesk-com/v/Inventor/enu...

Hope this helps.

[JDMather]

Find the Drive This angle constraint on the Sun Gear and right click and select Drive.

[luiww · Accepted solution]

Thanks for the answer. I have been toying this for days.