Bit of a left-field question, but with all the experience here of pushing things around on wheels, I hope there might be some good ideas lurking. In the workshop, I've got a trolley/ truck with some woodworking machinery on it - all up, it weighs about 80kg. Because of the layout of the workshop, it needs to move around - not large distances, but it does need to move. Unfortunately, it's not as simple as moving back and forth along a straight path - the movement is a mix of sliding in various directions, and also rotating. It's on swivel castors at the moment, but it's quite hard to maneuver - probably because of the nature of swivel castors - the wheels will always swivel to align with the direction of travel. To then push them at 90' to the previous direction of travel means the castors need to swivel, and that always takes extra force. The answer might be as simple as upgrading the castors to something good from Flints, but they'd still have the problem of needing to re-orientate themselves each time the direction changed. I've looked at alternatives like omni-wheels or mecanum wheels, but finding some which can take the load at a sensible price is a challenge (to give an idea, Flints want about £50 for a decent set of castors, while omni-wheels seem to be nearer that price just for a single wheel). I did also wonder about ball transfer units in an inverted configuration, but I was worried how much damage the point loads of small (<1") metal balls would do to the concrete floor. Does anybody have any suggestions of how best to achieve an easily moved truck? Thanks, Tom