Lift assembly

A lift assembly comprising;

• a base;
• a platform coupled to said base, said platform moveable between a lowered state where said platform is proximal to said base and an elevated state where said platform is distal to said base;
• a first pair of scissor arms including a first arm coupled to said platform and said base and a second arm coupled to said platform and said base, with said first arm and said second arm pivotably connected to one another;
• a second pair of scissor arms including a third arm coupled to said platform and said base and a fourth arm coupled to said platform and said base, with said third arm and said fourth arm pivotably connected to one another;
• and
• a carriage coupled to said first pair of scissor arms and to said second pair of scissor arms, said carriage including,
• a shaft extending transverse to said first arm, said second arm, said third arm, and said fourth arm, and
• a centering wheel rotatably coupled to said shaft;
• wherein said first arm includes a cam surface engageable with said centering wheel to guide travel of said platform between said lowered state and said elevated state.