My newest ball machine: Space Tower! 12 paths, 3 networks. If you like it, please vote for me in the "Toy Rods and Connectors Contest". Thank you!

Step 1: Micro Path

3 railed path, but made out of micro pieces instead of normal.

Step 2: Two Directional Lowering Arm

The centerpiece of the tower. The ball can roll across in either direction, and will be lowered onto the track below. I wouldn't make it any longer, because it already has problems twisting from the weight of the ball. Also uses the largest counterweight I've ever built.

Step 3: Rocket

I used it as a path, having the ball roll across it from one end to the other. However, it needs to be PERFECTLY rotated, or the ball will fall off of the side.

Step 4: Covered Path

Good for straight sections, and vertically flexible. Turns are near impossible.

Step 5: Space Shuttle Basket

I modified the Shuttle Orbiter model, putting a hole in the bottom so that it can be used as a basket.

Step 6: Satellites

Since it was space themed, I decided to add some satellites as decoration.

Step 7: Yellow Connector Path Turnaround

A turnaround I made for the standard yellow connector path. The speed of the ball needs to be pretty precise, or it won't work.

Step 8: Crossroads

I've seen a few of these on Instructables, but none that are exactly the same, so I'll post mine.

Step 9: Whiplash Loop

A custom whiplash loop I made. Difficult to get the landing exactly right, but pretty cool when it works.

Step 10: Attaching a Frame to an I-Beam

I did something similar in Four Flags, but this system works much better. Quite stable, can be used to hang sections from ceiling. Used to support Skyrail.