topic Re: Component not fixed where the were drawn in Fusion Design, Validate & Document Forum

Component not fixed where the were drawn

Anonymous — Tue, 26 Jun 2018 03:28:28 GMT

Hello,
I come from a good solidworks background, but since I am considering buying an X-Carve I realized that fusion was

my best bet. So I watched some tutorials and went right ahead and created my first model in fusion. When I design "furniture" I would typically go and do most of my sketches and then start modeling from there. I have attached a picture here. I used a lot the Copy function because I liked how it kept the name of my component consistent. So this is my first fusion completed model :

So I went and created an assembly where I created and copied and pasted components. Here is my question, I inadvertently clicked on one of the components and it moved. How can I make sure that if I click and move component they will not move? Do I need to create rigid joint for all of it? Maybe it is some aspect of Fusion that I do not grasp quite yet. I attached a picture of what happen if I go and decide to click and move my components.

Thank you for the time!
Matt

Re: Component not fixed where the were drawn

TrippyLighting — Tue, 26 Jun 2018 09:13:03 GMT

I am sure there will be a few more concepts that you'll come across that are different in Fusion 360 compared to Solid Works. The Joint/Assembly system, in Fusion 360 fr example is quite different.

When you drag components around in the viewport in this case by accident you'll see these wo icons appear. The grey one will move the component(s) bas o the original location. The red one will store the new location of the components.

If you followed a top down workflow where you designed everything in place, you can assemble everything with a rigid group joint. However, based on your description it does not really sound you did strictly follow a top down approach.

Can you share your model ?

Re: Component not fixed where the were drawn

Anonymous — Tue, 26 Jun 2018 12:15:03 GMT

Hello Mr. Doering,

Thank you for your answer. You are perfectly right I don't expect to learn fusion without any question. It is a process that will take some time I am sure. I can share my model, I added it as an attachment to this post.

Let me know if any more information would be useful to you

Matt

Re: Component not fixed where the were drawn

DanielZhuk — Sun, 20 Dec 2020 16:13:18 GMT

Hi @Anonymous,

I have the same question as you. I'm curious about the answer since it never received a definite answer.

What should the workflow be? Creating a new component and immediately make an 'as-built'? Or creating everything and make one last 'rigid group' to fix it all together?

Did you end up using a 'rigid group' or an 'as-built joint'. What are the suggestions from Fusion users regarding the situation of your model? @TrippyLighting

Re: Component not fixed where the were drawn

TheCADWhisperer — Sun, 20 Dec 2020 17:35:40 GMT

@DanielZhuk

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

Re: Component not fixed where the were drawn

DanielZhuk — Sun, 20 Dec 2020 17:54:24 GMT

Hi TheCADWhisperer!

Thank you for your reply.

My model is similar to the one attached by Matthieu.

What do you think is the best workflow to fix all the different models in a top-down workflow combined with copies of components (similar to bottom-up components)?

Kind regards,

Dan

Re: Component not fixed where the were drawn

TheCADWhisperer — Sun, 20 Dec 2020 18:26:35 GMT

I rarely answer any questions about technique without seeing current efforts.

If I find that the foundation is built on quicksand - the best efforts will surely sink.

Re: Component not fixed where the were drawn

DanielZhuk — Sun, 20 Dec 2020 19:42:50 GMT

Hi TheCADWhisperer,

Understandable! Attached you will find my example.

I have used 'as-built joints' after creating each new component, and a 'joint' for a copied component. I could have perhaps created a 'rigid group' at the very end instead.

However, maybe there is a more efficient workflow to do these things. I'm curious what your opinion is.

Kind regards and thank you for your help!

Dan

Re: Component not fixed where the were drawn

davebYYPCU — Sun, 20 Dec 2020 21:45:26 GMT

The short answer is Design dependant.

For as many ways to design a similar Project there are as many answers.

A general answer:

Make Component, when empty Ground it.

Replace the Ground at a later stage with a motion Joint if required.

As built joints do not respect parametric changes to body dimensions if they are employed.

Might help....

Re: Component not fixed where the were drawn

DanielZhuk — Wed, 23 Dec 2020 10:22:27 GMT

Thank you @davebYYPCU ! That surely helps!

@TheCADWhisperer , would your method be the same?

Kind regards.

-Dan

Re: Component not fixed where the were drawn

chrisplyler — Wed, 23 Dec 2020 15:19:27 GMT

@davebYYPCU wrote:

As built joints do not respect parametric changes to body dimensions if they are employed.

They might, and they might not. Depends on whether/how the parameter/dimension in question is related to that Component's Origin, and whether the Origins of both Components are in the same place or not. I've built plenty of models with As-built Joints that work perfectly fine through dimensional changes. You just have to be mindful of how they work.

Re: Component not fixed where the were drawn

chrisplyler — Wed, 23 Dec 2020 15:34:35 GMT

For a simple design like the piece of furniture you posted...if I modeled everything in the right place to start with...I don't even worry about Joints. I just leave the Components movable. And, very rarely, if I accidentally drag something away, I just DON'T click the Capture Position button.

Sometimes it's helpful to just drag something out of the way so you can see something else better. And having Joints means extra steps to Suppress them temporarily, do what you need to do, and then Unsuppress them.

Re: Component not fixed where the were drawn

davebYYPCU — Wed, 23 Dec 2020 19:31:53 GMT

You and I know that, but newbies get trapped because they don’t know what they don’t know, unless we mention it. There was an if my statement, and mentioned for their benefit.

Parameter sized furniture I would not use them.

The classic, is the table with legs, as built for the leg at a margin to the table’s edge, with intent to keep the margin when changing the table size, then change the table size as intended, the legs stay put.

Might help....

Re: Component not fixed where the were drawn

DanielZhuk — Mon, 28 Dec 2020 13:57:16 GMT

Thank you all for the interesting discussion.

It seems I'll have to try them out, and see when 'ground', 'joints', or 'as-built joints' are suitable for a design when they are subject to parametric changes.

Re: Component not fixed where the were drawn

chrisplyler — Mon, 28 Dec 2020 15:35:47 GMT

@davebYYPCU wrote:
You and I know that, but newbies get trapped because they don’t know what they don’t know, unless we mention it. There was an if my statement, and mentioned for their benefit.

"If they are employed," is not much of an if. That's like saying, "Coffee will burn you, IF you drink it." You told the newbies that they WON'T respect dimension changes, when the reality is that they might or might not depending on how they are employed.

Re: Component not fixed where the were drawn

davebYYPCU — Mon, 28 Dec 2020 19:28:09 GMT

Attach your demo, my mental gymnastics can’t figure it out.

My example, did not follow the design intent, where normal Joints did respect parameter changes.

Re: Component not fixed where the were drawn

chrisplyler — Mon, 28 Dec 2020 20:11:57 GMT

You don't need a demo file.

You just need to construct your model with components in place (without having moved any of their origins), and with appropriate dependencies such that dimensional changes result in the desired/expected behaviors. Then As-built Joints only serve to prevent you accidentally dragging components out of place.

Re: Component not fixed where the were drawn

davebYYPCU — Mon, 28 Dec 2020 20:15:44 GMT

Got it.