I'm making a card scanner, and I want to find the best-practice method of lifting something up on a straight axis. I want to lift a pile of cards to a feeder. It's a tire and rim that is placed above a conveyor. I thought of two kinda wasteful ideas so far. Three 32L Long axles as guides for each side of the card bin, and one pole is motorized on the middle back. The motorized pole is covered in worm gears, and around it are more poles with more worm gears. When the motor goes, the middle...