Help Strange sagging behaviour

[chenji]

Thanks for the replies. I think I understand how collisions work and I dont think that is the issue, but have posted here to double check. 

My connectors on the end of the rod have collision catagory 1, and collide with everything except 0. My rod particles have collision catagory 0 and collide with everything except 1 (is it fine to have 0 (self) selected here?).
If I have a second, inboard, particle then with will have all collisions selected, but the issue is independant of this so I dont think this is relevant.

Qriva, I did actually have that same issue, and commented on that thread at the time (https://obi.virtualmethodstudio.com/foru...l#pid17239), but I think that is a completly seperate and unrelated issue. Although now come to think of it I do occasionly see that issue repeating despite the fix in that thread. Maybe it is related... Not sure.

Thanks!

What's the resolution of the blueprint? Try to adjust the value of it and/or the value of thickness. You can enable the particle renderer to see how many particles are there.