Before I started collecting materials for the Laddervator I decided to build a model first so I could test out designs without a lot of work. I used K'nex to build a small version of the Laddervator. The good news was that I had a roller-coaster set that had a track that looks and works like a ladder, and a car that already has wheels. I used a K'nex motor (with forward and reverse gears) to represent the motor that I will be using in the laddervator. One thing I noticed is that even in reverse, the Laddervator platform has to be heavy enough to pull against the weight of the rope (or thread in the model) to allow it to return to the ground.
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