Although it wasn't apparent when I started working on various Lifter models, I realized that by off setting the fulcrums the Carriage could be made to swing forward. All that was needed was a vertical support that could move along with the Carriage. The video shows a rough design of such a Lifter. It consists of the Carriage, a vertical support and a method of tilting. The payload shows a solid block that weighs about 33 pounds and the Carriage weighs about 3 pounds. The force required to tilt the Carriage, using an extended Tilt Arm is around 6 pounds. This is the approximate weight of the "mule" running on the Tilt Arm.

The incline, provided by the Extended Tilt Arm, gives an MA of 5 which applies to the movement of the mule. The 6 volt motor on the "mule" provides enough torque to pull it back and forth on the tilt arm and tilt the Carriage as it does. A tilt of 11-12 degrees raises the base of the Carriage, at the fulcrums, about 3/4". By giving the Carriage the ability to rotate on its fulcrums, the Carriage will move up the 11-12 degree incline. The angle of the incline in this example is set low, but it could be increased up to 90 degrees.