Slider Constraint: Blender Rigid Body Constraints
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- Опубликовано: 29 окт 2021
- This short video explains how to create "Rigid Body Slider Constraint" in Blender. Slider constraint allows rigid body to slide only in one direction constraining motion in all other directions. i.e., It allows only one translation in the direction specified by Empty. In Blender, direction of sliding happens only in the X-Direction, So here Empty's X-Axis is oriented to align the direction in which sliding is required. Follow the video till the end where we have shown different examples or applications of slider constraint and their setup.
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dude, you are an underated blender artist in youtube. you seem like having good experience in engineering. btw, already subs.
Thank you very much for encouraging and Subscribing. Keep Learning!
Hi, congratulations for the very useful, extremely clear and detailed video!
I don't think you have time to answer me, but I'll try anyway: I need to create completely rigid springs in Blender (not elastic, just helicoids) which, when one spring penetrates the other by superficial sliding, as a screw penetrating the wood.
It's possible? Or is it too complicated in Blender? I would like to point out that this is a physics experiment in which gravity and any other disturbing element, such as friction, must be completely eliminated.
If you wanted to try your hand at this experiment, in the case of a publication I would obviously cite you for your help... Davide Longhi
Thank you very much for appreciating our work. Coming to your problem I can't understand spring penetrating the other. Can you please explain with little more clarity. Keep learning...
Hi, thanks for your availability! What I intend to create is a model in an environment vaguely similar to that of deep space, without the influence of gravity, but only mechanical interactions between objects that collide with each other without however determining inertial behavior: if one object collides with another violently , for example, the other object does not move away but remains attached to it, it simply moves because the two objects cannot interpenetrate. I know, it's an unusual environment, but the interesting thing is studying a context that is as elementary as possible, which precedes gravity and inertia, or rather is the cause of them.
To test some hypotheses in this regard, I need to "play" with the springs (non-elastic and non-deformable), which have the only characteristic of interacting with other identical springs (all, for example, made up of four coils) partially inserted into each other. in the others, to form a chain. One of the first experiments I would like to do is to see what happens if I rotate the entire chain of springs together clockwise and move it laterally with an external object: I want to see how the springs behave, if they are forced to rotate on themselves to adapt to the movement, if waves are formed or similar...
That is, the springs must be rigid bodies that interact with each other only due to impacts or screwing into each other, without any friction that limits these movements.
Do you know the rack movement? I mean the one between a rack and a worm gear. Rotating the screw causes the rack to move longitudinally and vice versa.
I intend to ask you if it is possible in Blender to obtain the same interaction between two springs partially inserted into each other (even better a chain of springs partially inserted into each other).
I don't care if they are super defined or smooth objects, otherwise the calculation becomes terribly complicated and slow.
In essence, what I am asking of you is very simple in itself: the model of a single rigid spring, infinitely duplicable, made in such a way that it interacts with an identical spring by rotating inside it clockwise or anticlockwise depending on the external stresses.
If you can make a chain of such springs and make it rotate on itself, I'll try to see what happens by playing with it a bit. Thank you very much! Davide
Can I do it in May?
u can
This is interesting! How do you make the deformable spring?
Thanks for appreciating our work. We did the Following to make the spring deformable. (Spring was not Rigid Body)
1. First a Screw Modifier was used on a single vertex to Model Helix (Spring Center Line).
2. Then, this helix was converted as Curve (Object >> Convert >> Curve).
3. Then Under Curve properties, Depth was increased suitably to show the spring wire.
4. Then with the Help of Shape Keys the animation was achieved.
Keep Learning!
@@EngMorph oh it was shape keys. I thought it was physics based. do you know any other software that can simulate the spring physics? thanks for the information!
@@HuanLeVuong clearly it is shape key. if you want to simulate spring deformation you could use solidworks or autodesk inventor.
For animation purposes Shape keys kind may serve the purpose. To simulate the spring physics we have to use Finite Element Solvers which deals with deformable bodies.
Screw Modifier-animate Screw
can you make spring constraints please
Soon we'll be releasing 👍