How can I test if a mechanism works well before printing? I'm not new in Blender but I'm really new in 3d print. I want to do a mechanism with, lets say, two gears and one handle, and I want to test, rotating the handle, if the mechanism works well before printing.
The only solution that I found is use the rigid body simulator and drop a mesh to one of the gears and see rotate.
But what I need if there any way to rotate a handle and see if the gears works well each other before print the model.

I want to rotate the handler to test the model, is that posible?

Thanks in advance!

UPDATE:

After search a bit more I found a solution :D I use the Rigid body physic to simulate the mechanism.
I add a constrain to the red gear to act like a motor, so the gear rotate by itself. I saw the use of the constrain in this video https://www.youtube.com/watch?v=XcO8ovnr_Z0 (wich I recommend to see)
Thanks for the answers!

This gif probe that I made it (?)
What you may want to try is you can import it into a website called Onshape, it is a free cad software, it requires an account but after that you should be good. You can import meshes into it, there are many tutorials online if you need help.