The 4P cable mentioned on this page isn't quite long enough to connect the ultrasonic ranging sensor to the interface board. The builder may have to replace it with a longer cable or modify it so that it is long enough. I had a couple of spare Dupont wires laying around, so I was able to use them as an extender so that the head would move correctly.
You might want to consider putting a longer version of the 4P cable in future releases of the kit.
The 4P cable mentioned on this page isn't quite long enough to connect the ultrasonic ranging sensor to the interface board. The builder may have to replace it with a longer cable or modify it so that it is long enough. I had a couple of spare Dupont wires laying around, so I was able to use them as an extender so that the head would move correctly.
You might want to consider putting a longer version of the 4P cable in future releases of the kit.