topic Betreff: Grounding or joints which is the better method in Fusion Design, Validate & Document Forum

Grounding or joints which is the better method

terry_fusion — Sat, 11 Mar 2023 16:39:16 GMT

I've been watching a lot of fusion videos on YouTube.

Learning about other work flows in fusion, and one question I have is the benefit or lack there of between grounding components vs joints.

My understanding and process when designing is to ground my components upon creation.

And only use joints for those component that need some sort of mobility or active state.

But I've seen some only grounding the base component and then everything else using joints.

For example when I design a large exterior sign, I simply ground the components because in the end all I'm after are the flat patterned sheet metal parts for me to cnc.

Please correct me if I'm wrong here, but for what I need from my designs doesn't really require joints?

If so what's the benefit?

Betreff: Grounding or joints which is the better method

g-andresen — Sat, 11 Mar 2023 16:16:10 GMT

Hi,

just take a look at this Tutorial

günther

Re: Grounding or joints which is the better method

jhackney1972 — Sat, 11 Mar 2023 16:17:01 GMT

In my opinion if you do not need positioning between your components and you have no need for an motion, grounding is just fine.

Re: Grounding or joints which is the better method

terry_fusion — Sat, 11 Mar 2023 16:29:07 GMT

John, thanks.

That goes along with how I felt I was designing my assemblies.

I very seldom need any type of motion in my designs as most of them are literally cemented in the ground IRL.

Betreff: Grounding or joints which is the better method

terry_fusion — Sat, 11 Mar 2023 16:30:41 GMT

Thank you that was very informative and I'll make sure to save that video as a reference for when I need those types of relationships.

Appreciate it.

Re: Grounding or joints which is the better method

jeff_strater — Sat, 11 Mar 2023 17:16:29 GMT

I agree with most of this with one important caveat: Ground does not come along with Insert. So, if you have a sub-assembly in a different design, and ground stuff there, when you insert, the ground is dropped. The usual approach I would take is to ground one component in a sub-assembly design, and then use Rigid Group or other joints to fully constrain the sub-assembly, either with or without motion. The ground is only necessary to "test out" that the sub-assembly is fully jointed (by dragging). On insert, the ground is dropped, but the rest of the sub-assembly should then move as a single unit. Add the joint or joint needed to connect to other components, and you are all set.

Some people prefer using an "As-Built Joint to the root origin" as an alternative to Ground in a sub-assembly, since that will come across with Insert. It's too much trouble for me, but is an option

Re: Grounding or joints which is the better method

terry_fusion — Sat, 11 Mar 2023 17:46:25 GMT

Also very good and well presented information.

Thanks !

I'll bookmark this as well.