jaydavey9's Lego Mindstorms NXT Pan & Tilt Mechanism

[DLuders]

Jaydavey9 posted this

of a "Novel (at least to the best of my knowledge) Pan and Tilt mechanism built with Lego Technic and NXT servos and controller. Uses only two motors but both motors must work together to achieve pure pan or tilt. The advantage of this design is that both motors contribute torque to both pan and tilt movements giving twice the power to achieve pure pan or tilt. Motors do not act as dead weight during motion, instead they can both be utilized during any movement. This is different to some other designs that have a dedicated servo for tilt and another dedicated servo for pan. The design is bottom heavy for stability making it a good platform to mount cameras and possibly further manipulator joints. This mechanism is more difficult to control than other pan-tilt servo combinations but the power and physical stability of this design could outweigh this disadvantage."

The device above has practical applications for photographers. Philo (Phillippe Hurbain) has "Lego Accessories for Photographers" on his website, such as the PanoBot and PanoBot2 pictured below:

[Treadwah]

Nice.... added to the 'to build' list.