I have spent hours trying to get the Blender Physics whatsit to simulate a Newton’s Cradle. I can make it do it…….a bit using the hinge constraint and a single suspension wire but not if I use two and without two it isn’t a cradle, it doesn’t work with the point constraint either. Whilst writing the last few words I have thought of something I’ve not tried. I’ll have another go in a bit. If that doesn’t work then it will go in the large file titled “Too Difficult for Adrian.”It’s fine up to this point, the strings maybe a bit poofy but the material doesn’t affect anything. It all goes chao