This is part 1/4 in the series, and it's worth a watch. Impressive machine and then some!!
https://www.youtube.com/watch?v=-WMnWUC6b2k
Part 4 (the last one):
https://www.youtube.com/watch?v=gAqXtTlrM6s
https://www.youtube.com/watch?v=-WMnWUC6b2k
Part 4 (the last one):
https://www.youtube.com/watch?v=gAqXtTlrM6s