Robot Assembly has taken two 1 hour sessions largely because of the need to share tools and the complexity of the steps.
The kids learned how to use a small jewelers drill to open up some holes in the plastic mounting brackets that come with the servo motors to make the screws go in much easier than without. There are 12 screws needed in the assembly and some of them are pretty tiny. The steps are somewhat complicated in that it is easy to misunderstand and put things together backwards. For the next group of kids, I will put have a pre-assembled robot on each group table as well as detailed photos on the table of each step.
Our next session will be about learning what a micro-controller is, how the servo motors work, and soldering a connector to the micro-controller so that they servo motors can be plugged in without cutting wires.