Heaven help me - I've just bought a delta kit :-)

[curious aardvark]

pulleys and belts absolutely fine.

Just been watching it print s deputy badge and tthe bed is moving.
It looks like the head is catching and moving it, but damned if I can see on what.

The bolts and springs are almost at maximum extension, so probably make sense to screw them right down which should make it considerably more stable.

At the moment there is almost no compression on the springs so the bed moves really easily. If I screw it right down, the springs will be a lot tighter and upward pressure should hold the bed a lot more stable.
Might also make a spacer for the cable holder, that also might be pushing the bed.