mgmetalworks
Explorer
We initially had some issues with the top on the tailgating trailer (same concept as your Sherpa). Started out with 4 electric jacks but they were very difficult to keep in sync. Ripped those out and went mechanical... gearboxes at each corner and drive shafts connecting them all together and driven by a single 12V gear reduction motor. Don't have any more timing issues and the screws are capable of lifting lots of weight.
There are some fancy camper jacks out there that are sync'd by a motor controller....I briefly looked into that but packaging issues prevented us from using them.
There are some fancy camper jacks out there that are sync'd by a motor controller....I briefly looked into that but packaging issues prevented us from using them.