It is performance art. Having the crew climb aboard Kumo after being lifted high above the machine by a heavy lift crane and then dropping down rope and rappelling down is not an easy way to get to work. The giant mechanical spider was held up on the roof of Notre Dame Cathedral Basilica, in Ottawa, Canada, by another heavy lift crane.
1. The overview - the church, the giant mechanical spider, two large cranes and the crew.
2. The crew catches a lift...
3. Down the ropes they go...
4. Slowly getting there.
5. On the job and operating Kumo