Knex Stair Lift

I finally decided to post my stair lift. It's similar to the stair lift I used in Wipe Out, except for a few modifications. The steps sort of work like pistons, going up and down on rods of different length. Each rod is a green rod higher than the one before it. This one has an improved design since the last one, like better platforms and an enter and exit track. I also made it more reliable.

This lift also works with the newer balls.

EDIT:  This Instructable reached 4.13* within a day after posting.

Video:



I hope you like it!

Before you begin building, you'll want to gather all of these pieces:

Rods:  296
green-85
white-81
blue-86
yellow-41
red-3

Connectors:  261
dark gray- 57
light gray-20
red-31
green-12
yellow-30
white-5
orange-28
blue-35
purple-43

Other:  122
blue spacer-47
silver spacer-43
Y clip-5
tan clip-23
(metallic) blue clip-1
red gear-1
blue gear-1
battery powered motor-1
balls-at least 1

Total:  679

If you have all these parts, then on to the next step!

In this step you'll build the axle that lifts the stairs up and down and put the motor on. The axle is part A, and the motor is part B. Don't forget any spacers!

This is one side of the tower. You'll find that there's a pattern on the tower. Not much more to say, but pay close attention to the pictures.

This is the second side of the tower.

In this step you'll assemble what you have built so far. Make sure to connect everything when putting the towers together.

After you're done building the motor section and entrance track, you'll attach them to the model.

Now you finally get to build what the stair lift is all about. You'll have to build four steps.

This is the easiest step of this Instructable.

You're almost finished! Just add the steps and exit track to the model. Make sure the steps slide on the yellow rods.

Hooray, you finished the stair lift! Now put the balls in, turn the motor on, and watch the balls go up.

Thanks for viewing, and don't forget to subscribe!