Knex 'wheeled Crankshaft' Ball Lift

This lift in powered by a large crankshaft which is what I had in mind when building the 'raiser' ball lift. Because there's no rods long enough to cover the height I wanted, wheels are used to support it.

Video: http://www.youtube.com/watch?v=wA0hnM4_J1Q

Each piece is a step (there is one hidden at the top).

This will be the main scaffold. Notice how there are no red rods connecting the middle, and how some rods (tagged) are different sets of pieces.

A quick addition to the previous step. I just didn't want too much in one step.

This makes sure the ball holder doesn't move away from the entrance track.
The larger rod must be a 'gold rod'. (They're the same size as a red rod, but come with specific spacing.)

These support the wheel when they go up and down. Notice the gap in them.

Remember how you had to have a different version of the red rod? This explains it!

These parts help align the wheel aligners, and the more complicated part is the exit track.

Add them where you see them in the picture. Check the orientation.

This is the ball holder. The wheels align them, the rod (above it) attaches to the crankshaft, and the connectors (below it) aligns it.

Easy storage, and better done now than later. Make sure the rods align with the wheel.

This is double layer, but you only need a single rod for the second layer. You don't need these exact wheels for a counterweight, but you do need a counterweight.

Just 8 connections.

A small addition to the scaffold which holds the motor.

Just 8 connections (depends what counts as a connection).

Because you can never have enough counterweights.

There must be gold connectors.

Just 2 connections.

Make this 'white floor' with a gap in it to align with the entrance track. Don't forget the 4 pieces above.

Use the extra pieces in the previous step to attach the white floor. Also use the Y-clips.

You're finished! If you plan on increasing your floor, causing momentum, add the pieces in the second 2 pictures to slow them.
Enjoy!