There are several threads on this forum that discuss larger FarmBots.
- There is the FarmBot XL, which essentially covers 4 times the normal growing area (6000 mm x 3000 mm).
- There is much discussion regarding increasing the tracks length. FarmBot guys are working on devices reliable up to 12 meters. After that you will likely need even stronger motors to pull the extra weight of cables and such over a longer track.
- This entire thread is also worth reading.