I don’t understand what the problem is with physics. In my project I need smaller chain links, but when I make them smaller (and even apply a size) then the physics breaks
There was often a discussion that physics “breaks” if it is “too” small in many forums. It might be the reason that the rounding errors are taking over because Blender’s internal storing number system is not made for very low numbers.
But if it works for bigger scale, why do you scale it down? Nothing is quicker done in Blender than scaling things up or down. So I don’t really understand what your problem is, if there is a really easy workaround…?
because I need this mesh to be small
Please attach the file.
It may be a matter of scale, but it may also be a matter of different settings.
In particular, for beginners, there are cases where it is set excessively due to fragmentary information.
Attached is the test file.
jkhkj.blend (171.9 KB)
I tried duplicating your chain links and reducing them - everything works, but on my mesh - no
here is the file
https://files.catbox.moe/ic3gte.blend
The file is not downloaded.
The simulation performance of the blender is not good.
There are some limitations to fix the problem with that scene, but it may not work perfectly.
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Adjust the object to a size suitable for simulation.
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Increase the precision of simulation.
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Modify the object.
The current object seems to have a narrow gap to extract the extent to which the collision occurs.
Please refer to the video
Alternatively, you can use the same method as that video.
