I'm thinking of adding a DRO to a 4 post planer. I've read up on it and read a post saying that if you forgot to turn it on and moved the table it would need to be recalibrated. Not sure if this is the case but I do know my Mitutoyo calipers will loose their position when the battery starts getting weak. If the power needs to be turned on before moving the table I can see myself forgetting this step. Until then moving it even with the power off doesn't matter.
While not as easy as the Wixley the iGaging version can be connected up to a power source. Has anyone actually bought the power supply to power it? If so do the batteries keep the memory when it's not plugged in? The power supply says it will work from 100v up to 250v so I was thinking that I could put an outlet inside the base of the cabinet where the power comes in so once I pug the planer into the wall the DRO would have power. Since it's going to be moved around the shop most of the time it's not going to be plugged in so is it even needed? Am I over thinking this?