Go to Home position vs. rest

[MichaelT_123]

Hi,

I know that "go home" and "rest" are not always synonymous, ... however I expected that in case of F360, it would be.

"Go to Home position" (the right click on joint in the browser) does not respect the setting of joint limits under the field "rest".

Instead, after triggering "Go to Home" the joint goes to the position when it was originally created.

Is it intentional?

How to force the joint to go to "joint limits rest" position?

With Regards

MichaelT

[TrippyLighting]

You couldn't possible create a screencast to show that behavior ?

[MichaelT_123]

Hi,

Here is the screencast:

I am attaching the sample file, the screencast was made from.

With Regards

MichaelT

[TrippyLighting]

I don't see a screencast.

3rd tip down following this Link explains how to properly embed a screencast.

[MichaelT_123]

Perhaps this will work ... URL paste did not ...

Regards 

MichaelT

[TrippyLighting]

You need to ground one component before applying joints. You should be able to drag the ground symbol in the timeline to be for the creation of the joints.

However, trying to create a drag chain with the joints in Fusion 360 is unlikely to succeed.

[MichaelT_123]

Thank you Mr. Doering for spending your time on such tricky problem...

However grounding one component before applying joints limits is not a solution. It is a demand, which does not reflect what the nature offers us ... birds could not fly ...

I am sure, that you would not like your neighborhood without birds, would you?

Seriously, angle between pair of component has nothing to do  with their surroundings. It is a pure logic ... ask any mathematician ... geometrician ... astrono..tician ...

I believe that the small touch to the F360 code could correct the current deficiency.

Regarding your closing sentence ... "trying to create a drag chain with the joints in Fusion 360 is unlikely to succeed" ...

Well, it would be like journey to the center of hell and back,... impossible ??? 

Durante degli Alighieri had done it. He even have had written very important book about his experiences.

Perhaps, the task you mentioned is a little bit more demanding but ...

Regards

MichaelT

[TrippyLighting]

If you want to discuss philosophy you're in the wrong forum.

A properly functioning/behaving chain cannot be created with Fusion 360's joint system. Whether in hell or in reality.

If Dante would have been an Autodesk programmer with access to the source code of Fusion 360 he might have been able to.

This is only a tricky problem because you've not moved past 2 chain elements. Add another three with proper joint limits and rest position. Once the chain moves around a radius, explain how Fusion 360 with no other controls would decide which chain element and joint to move ?

Motion links are also no help her as they don't work on intermittent or discontinuous motion. You can philosophize on what code might be written in Fusion 360 to accomplish this, but you're still not closer to any solution.

[MichaelT_123]

Well, Mr.  Doering ..

… philosophy is everywhere … now and in the past. There have been many great designers/philosophers at the same time (and vice versa). You own them something.

Today?, … Russian rocket scientists and their Americans F35 counterpart will ignore your bias, however denying philosophical acumen, creators of designer’s underwear might get personal.

I haven’t mention TeamF360 … they might have some CAD/CAE philosophy, haven’t they?

I am not going deeper into correcting your other statements …

Here are two examples of DragChain models based on F360 joints. It wasn’t straightforward exercise and there is more to it than meets the eye … but it is possible … at least for ones having bad connections in low places.

Screencast: http://autode.sk/2u8Q7Yl

Videos are in  *.mp4 format ( h265 encoded, update your system if needed )

http://a360.co/2tCt19u

https://myhub.autodesk360.com/ue28cfb88/g/shares/SH7f1edQT22b515c761e5c3c6b82e14b792a

The second, a little bit philosophical example might not be for your taste, but it is OK.

http://a360.co/2tuWyn0

https://myhub.autodesk360.com/ue28cfb88/g/shares/SH7f1edQT22b515c761e95bb5de43f0acc44

Sincerely

MichaelT

[daniel_lyall · Accepted solution]

Dude not cool.

Can you post the model that looks like something I could use

[TrippyLighting]

Very impressive! I'd love to see what process you' followed to create these animations. Would you mind sharing the model or/and creating a screencast ?

I am very rusty when it comes to animations. I've not tried this in Fusion 360 as it appears to be very limited. I prefer to use Blender, but even there the animation tools have changed a  lot since I Vw worked with these tools last.

While the animation part of your post is really cool I am not so excited about the rest. You appear to be an intelligent individual.

Why would you waste that potential by trying to insult others ?