How to Drive multiple rotational joints at once? (similar to fusion 360)

[loganmacleod]

Im moving from fusion 360 to inventor, and notice when moving parts of an assembly that are constrained to rotate, multiple joints move at the same rate in inventor, whereas in fusion 360 I can move wether of the joints independently, or together at different rates based on the cursor movement of clicking and dragging a in a different direction.

How can I achieve this movement in inventor?

Also, the only way to drive one joint I have found is to ground the piece I don't want to move. Is this the only way?

30 Second video attached of the same model in fusion 360 vs inventor for context

[pcrawley · Accepted solution]

Inventor doesn't have those manipulators on assembly constraints, so dragging things around is somewhat less precise.  There is a function in Inventor called "Driven" constraints (right-click any constraint and select "Drive") - but it still won't be exactly what you're looking for.

In Inventor, that sort of conceptual model would probably just be constructed in a single sketch with blocks.  You'd be able to get the design of the mechanism working correctly before making your first component.  In your video, there must be about 15 components complete with assembly constraints - whereas you could achieve all that in one sketch, which would have saved lots of modelling time.

Check out: How to Use Sketch Blocks in Autodesk Inventor - YouTube

Animating sketch blocks with an iLogic form is 30 seconds work - post back if you get stuck.