A dusting drone or quadcopter, especially to reach high light fixtures. Or a window washing/gutter cleaning copter.
By madrocks
Other robots from Synthiam community

Linux's Project Roll-X
I am glad to announce my next project after the omega project stage one is complete, introducing project Roll-X stage...

Urbanh's Target Bot
So heres the Target Bot. D7 is the main servo. D8 is the switch, which uses the GND and Signal cables (no resistors...

Cliffordkoperski's HAL THE ROBOT THAT WALKS AND TALKS
5.5 foot tall humanoid robot that walks and talks. 56 servos controlled by 3 ezbv4 boards working together over wifi. On...