Creating a pyramid of balls.

[nima360s]

I have this task where I need to use 2 pieces of 4 balls and 4 pieces of 3 balls to assemble a pyramid. I am struggling with the mating tool as I have to use trial and error to get them aligned. Now I've gotten to the part where I need to make the pieces in the piece which are diagonally placed and I'm really struggling with the angle type in contraint, I can't even click on the pieces. 

[Frederick_Law]

School started?

https://forums.autodesk.com/t5/inventor-forum/help-with-assembly-assignment/td-p/12792731

https://forums.autodesk.com/t5/inventor-forum/help-with-sphere-pyramid/m-p/11252258#M866993

[nima360s]

Thanks, I believe I go to the same school, at least the same course and same textbook as one of these threads. And I have the same issue with an uninterested teacher and the book which has been the single source of teaching not really teaching this specifically...

[James_Willo]

Hi, the simplest solution is to probably just mate all the origin planes. You can even drive these parameters in case the size of the ball changes. I don't know what specific method they are trying to teach you in this exercise though. 

[CCarreiras]

Hi!

Sometimes the traditional constrains are not enough to create the assembly and we have to create extra elements to help us to place the components.

There's several ways to do it, i chosed this one:

You can use an extra part with only a wire scheme (Sketch), and add some points (construction points) to connect to the points previously created in the parts:

Create the construction points in the parts:

Place all the components in the assembly (all the parts and the scheme part) and use simple constrains to connect the correct scheme points with the parts points: 1 minute job