I like the idea of being able to maneuver the trailer into any position at a campsite, this was easy with the Boler
and a hand dolly, but with the recent purchase of a Casita
the hand dolly will not work. To add to this we have both trailers parking in one long stall, if we want to take the trailer parked at the rear it becomes a real chore to hook-up and disconnect each trailer a number of times...
This is what I came up with, power comes from a 2000lb ATV winch, I machined the spool to accept a hub sprocket. Each tire is pneumatic, 8" swivel and 11" drive wheels each with a capacity of 350lbs.
I still have the handle and coupling to install but this gives a good idea of the design. Power will come either from the trailer battery
by plugging into the trailer plug or direct from the vehicle battery
through an extension and alligator clips.
Some of the parts used, a couple of discarded stainless steel chair frames, tire, sprocket ...
Machining the spool to accept the sprocket hub