Help cloth passthrough

[danazoid]

What's the mass of the forceps, vs the mass of one cloth particle?

Looks like the forceps have a specific velocity, that the box collider is limiting after the cloth has been simulated. So the cloth reacts to the velocity the force colliders had before being pushed back by the box. Which Obi updater component are you using? You could try using ObiLateFixedUpdater instead of the standard ObiFixedUpdater, in case the velocity limiting is taking place at the end of FixedUpdate that should help.

kind regards,

Forceps is 0.2, each particle is 0.01

On using the LateFixedUpdater, the unusual behaviour has ceased. The cloth deforms without the weird wave effect.
BUT, the forceps now passes through the cloth very easily, the cloth barely even stretches before the forceps slips through.

I've tried increasing the distance and bend compliances (by 100x), helps a bit.
I've also reduced the forceps mass to 0.1 and 0.01, which doesn't help.