Yes and no. It really depends on how fast and accurately you want to move that much mass. I worked on a mobile robot years ago that weighted ~5000lbs. It was on

Yes and no. It really depends on how fast and accurately you want to move that much mass. I worked on a mobile robot years ago that weighted ~5000lbs. It was only putting 2mL of fluid into a tile on the space shuttle at a time. It needed to be that heavy because it had to be very careful not to damage the tiles (or the shuttle) and it needed to move in and out of the same standard height doors at the orbiter processing facilities that people walked through, but then needed to operate at up to 13' in height.