The document describes the construction of a Lightbot model in 3 steps - the first step involved constructing the model from pipes and joints, the second step had the legs and hip completed, and the third step was the completed version with the legs, hips and arms finished and just the head remaining to be added.

1. The First step I took of constructing my Lightbot, most of
the model is constructed from the pipes and the joints that connect it together.
This version of the Lightbot is halfway complete, the legs
and the hip are complete.

2. This version of the Lightbot
is almost complete, the legs, hips and arms are complete all that remains is the head
This is the complete version of the Lightbot.