Set screw left behind when Joining. Why?

[rajdude]

Hello all,

My very first post here and I am a total newbie to F360. For the past week, I am trying to learn it.

I am stuck at one point here and need a little help please.

When I joint an assembly/component which has a set screw, the joint "happens" fine but only the main "body" moves and the set screw gets left behind. Is there something I am missing here?

(sorry if my terminology is bad, I am very new to this)

Example:

See this component:

https://www.servocity.com/0-770-clamping-d-hubs

(They have a STEP file in the resources tab)

When I joint this to another component, usually a wheel, the setscrew in the Hub gets left behind.

I have attached two screenshots here. The setscrew is visible in the component in the right side of the screen. After joining, notice that the set screw is left behind. This is happening in all components which have set screws, not only this particular component.

[davebYYPCU]

Depends on the design intent,

When inserting the component, you have the free move options to place all of it in the first step, but if that does not occur, 

the set screw needs an as built joint, or included in a rigid group,

before you send the bracket to its position.

Might help...

[rajdude]

Ummm..........I think I "kinda" understand what you are saying..........but I am working with pre-built components....which I download from their website.

Is there a way to change the pre-built component so it becomes a "rigid group"?

And yes, when I first insert the component, It all moves together, set screw stays in place. Only when I make a joint is then it falls apart.

[jeff_strater]

to add to what @davebYYPCU said:  Fusion supports only "flexible sub-assemblies".  That is, when you create a joint for a component that is inside of a sub-assembly, which I suspect is your case, that joint is only to that one component, not to the entire sub-assembly.  To get the behavior that you (I think) want, you would need to either create joints between the set screws and the main component, or create a rigid group of all those components.  There is no automatic way to do this.

[davebYYPCU]

Is there a way to change the pre-built component so it becomes a "rigid group"?

One more step to what you have been doing, after placing the component,

go to Assemble > Rigid Group, and window select all of the component. 

Then when you make the joint all will move as expected. 

Might help....

[rajdude]

Now THAT is what I was looking for. Thanks!

It works but with one little hitch........I cannot "window select".........I have to select the body "and" the set screw separately, with two clicks, after I click through Assemble > rigid group.

By "window select" did you mean draw a window over the parts I wanna make rigid? If yes, the window option is not there/ does not work.

[TrippyLighting · Accepted solution]

For an imported rigid (no moving parts) subassembly such as the clamp you linked to:

1. Do NOT turn the timeline on.

2. Select the root (highest level) component, right-click on it and select "rigid group". Make sure to keep "Include child components" enabled. Save, Done!

This will lock the component origins to the top level origin in that design and that is all that is needed.

This is BTW all that the rigid group joint does, it locks the origins of the involved components together.

[rajdude]

it keeps getting better here! Thanks for this tip! Works perfectly...no multiple clicking.

I do have one question, why disable timeline?

This procedure worked fine for me, with the timeline enabled (default setting, I guess)

[TrippyLighting]

Timeline models are roughly 3 times larger in data consumption than non-timeline models.

In larger assemblies that can make a significant difference. Yo are working with a cloud software so open ing a design means you are downloading data 😉

Evening you need to make changes to downloaded geometry you should decide whether it needs changes and then if this changes really need to be parametric. 

If you can answer both with yes, then enable the timeline. 

[rajdude]

Thank you, makes sense 🙂