Hello everyone! This is a lift for ball machines, and it's an inverted helix lift. This lift was first featured in Cataclysm (last picture shows it). It's similar to a regular double helix lift, except the tower rotates in the middle, and the helix is on the outside! Of course, there's still a tower on the outside supporting the helix.
This lift is much better than the double helix lift, because you can make it very high, since the tower in the middle is much stronger than a double helix. It's more smooth, and more fun to watch, too. :-) It does use a lot of pieces though.
Note: You can also make this lift with one strand of tubing instead of two. This way you'll use less orange-tabbed connectors and tubing. Go to step 2 for details.
This is different than the original used in Cataclysm. It uses much less pieces. If you have enough, you can make it as big and piece-consuming as you want.
strands of tubing-2: one 6 feet 3.5 inches long (191.77 cm), and the other 6 feet 4 inches long (193.04 cm). You don't have to cut the tubing, but it is recommended that you do. Go to Step 7 for details.
And you'll also need original Knex balls.
If you have enough pieces, then let's get building!