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by josegegas
Sun Nov 17, 2019 9:25 am
Forum: Users Showcase
Topic: Multi Body Dynamics with FreeCAD + MBDyn
Replies: 13
Views: 2766

Re: Multi Body Dynamics with FreeCAD + MBDyn

Sorry, what do you mean by construction? I think herbk means if you were to physically build this machine, it would probably not work as this ideal model. Did you add collision detection yet, or not? Oh, I see what you mean. The parts that "collide" are not actually part of the model. The thing is ...
by josegegas
Sat Nov 16, 2019 8:49 am
Forum: FEM
Topic: FreeCAD as pre-post processor for MBDyn
Replies: 159
Views: 18304

Re: FreeCAD as pre-post procesor for MBDyn

... https://www.youtube.com/watch?v=8dWsutquRi0&feature=youtu.be By the way, this bothers me although it doesn't seem to be a problem. In the tree view all your solids appear with the blue checkmark. This means that the body is in a "touched" state, and needs to be re-computed. Can you do a recompu...
by josegegas
Sat Nov 16, 2019 8:28 am
Forum: Users Showcase
Topic: Multi Body Dynamics with FreeCAD + MBDyn
Replies: 13
Views: 2766

Re: Multi Body Dynamics with FreeCAD + MBDyn

herbk wrote:
Fri Nov 15, 2019 12:35 pm
Hi Jose,

Nice Animation, but your construction dosn't work... Have a look at the Axis of the big gearwheel. ;)
Sorry, what do you mean by construction?
by josegegas
Thu Nov 14, 2019 1:06 pm
Forum: Users Showcase
Topic: Multi Body Dynamics with FreeCAD + MBDyn
Replies: 13
Views: 2766

Multi Body Dynamics with FreeCAD + MBDyn

The first steps using my MBDyn + FreeCAD workbench to do a bit more complex simulations... very exiting!

phpBB [video]
by josegegas
Thu Nov 14, 2019 12:48 pm
Forum: FEM
Topic: FreeCAD as pre-post processor for MBDyn
Replies: 159
Views: 18304

Re: FreeCAD as pre-post procesor for MBDyn

Testing the constraints so far added: revolute hige, revolute pin, in-line, clamp, prismatic, and axial rotation... Seems all work well. I'll do a couple more examples and then I'll include a few more joints and constraints. This is getting really fun, enjoy this: https://www.youtube.com/watch?v=8dW...
by josegegas
Tue Nov 12, 2019 8:05 pm
Forum: FEM
Topic: FreeCAD as pre-post processor for MBDyn
Replies: 159
Views: 18304

Re: FreeCAD as pre-post procesor for MBDyn

I actually think that MBDyn can do as the definitive asembly workbench for FreeCAD. As you can see in my videos, the parts move perfectly because MBDyn takes care of the assembly, it looks for all the constraints and everything. I'm quite existed about this. Yes, lately I was actually thinking abou...
by josegegas
Tue Nov 12, 2019 12:23 pm
Forum: FEM
Topic: FreeCAD as pre-post processor for MBDyn
Replies: 159
Views: 18304

Re: FreeCAD as pre-post procesor for MBDyn

Made some more progress today... fixing errors in the code, a bit more complicated simulations start to be really fun: Very nice indeed! Two questions... Is it already possible, or do you see that it could be possible in the future, to solve with this such examples as freecad-heini-1 has asked for ...
by josegegas
Tue Nov 12, 2019 6:23 am
Forum: FEM
Topic: FreeCAD as pre-post processor for MBDyn
Replies: 159
Views: 18304

Re: FreeCAD as pre-post procesor for MBDyn

Made some more progress today... fixing errors in the code, a bit more complicated simulations start to be really fun: https://www.youtube.com/watch?v=YyUkuVBGgyU&t=315s :D You still haven't made this public, right? My advice is to use dedicated icons for your scripted objects (those that appear on...
by josegegas
Tue Nov 12, 2019 5:17 am
Forum: FEM
Topic: FreeCAD as pre-post processor for MBDyn
Replies: 159
Views: 18304

Re: FreeCAD as pre-post procesor for MBDyn

Made some more progress today... fixing errors in the code, a bit more complicated simulations start to be really fun:

phpBB [video]

:D
by josegegas
Fri Oct 25, 2019 10:17 pm
Forum: FEM
Topic: FreeCAD as pre-post processor for MBDyn
Replies: 159
Views: 18304

Re: FreeCAD as pre-post procesor for MBDyn

Simulating the tennis racket theorem with MBDyn + FreeCAD :D https://www.youtube.com/watch?v=On72bODILlA&feature=youtu.be Here's a video explaining this behavior: https://www.youtube.com/watch?v=1VPfZ_XzisU And the original MBDyn exercise: https://www.sky-engin.jp/en/MBDynTutorial/chap09/chap09.html...

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