binding mesh to bones - missing step
i was trying to rig the hose of an air pump, and everything seemed straightforward except the binding doesn't 'stick'
i.e. i move the segments, and the mesh moves as it should, but as soon as i release the control, the mesh snaps back to 0 while the bones stay in place, rotated
so what did i miss?

Comments
What is Skin Binding saet to (Tool Setings pane with the Node Weightmap Brush tool active)?
oh. that. fixed now. thanks very much Richard.