Perhaps some of you have had to run for the power switch by now? My first time was when I tried to bring the Z axis to the bottom for motor adjustment and then realised I couldn't stop the motion turning the dial. And a couple of times Marlin caught me out when I autohomed after a print and then tried to level the bed: he started off to a place short of the front right corner and then started to do dangerous things at the left side of the bed. So now it's time for an accessible kill switch. I've noticed also that some "juice" remains in the transformer after you cut the AC power (a good 5mm of Z axis motion at present (slow) speeds). So maybe, to be fast, a kill switch should be placed in the DC line? Anyone have any views on this? Second point, the fuse is, by default 13A. If ever we should need a fuse then perhaps a 5A or even a 3A would be more appropriate? Any views from the experts?