I wonder if it’s possible to have a purely portable system like this. So no cables, just omnidirectional wheels and maybe some wireless locators in the corner of the room. It would need to correct for wheels losing traction, slope etc.
replies(2):
https://www.kickstarter.com/projects/2130625347/goliath-cnc-...
didn't really make it over the long haul.
The Shaper Origin seems more successful: