03-15-2015, 08:37 AM
FWIW _ built a loco lift (many years ago that ran on a single threaded rod and a pair of plastic drawer slides salvaged from an old chest of drawers - To power it I used a rechargeable screw-driver with the head located in a slot in the end of the rod - with the screw-driver gearing it rotated at a suitably slow speed to prove that the concept worked - but it was only moving a single Athearn BB loco up and down