[Yaaarc] looking for a servo to borrow!

[Joshua Bauer]

Hello my name is Joshua, I'm a student of George Albercook.  I'm in a near
space balloon launch class that he is teaching.  We are planning to launch a
weather balloon and pay load to 100,000 ft this Friday the 9th.

The last time we launched, we attached a camera in a secondary box below the
payload.  We attached a stabilizer to the camera box and it reduced the
swinging of the camera.  But, what we could not stop was the spinning of the
camera.

George and I have designed a way to attach the camera below the payload
using a motor.  We have an AVR butterfly, and an electronic compass.  In
theory, we can use the compass and butterfly to keep the camera pointed
north.  So, as the payload spins, the motor can rotate the camera box,
keeping the camera pointed north.  '

Right now we have a geared motor between the payload and the camera box.  We
needed the motor to be fast enough to overcome the spinning of the payload,
but with enough torque to spin the camera and the batteries that power the
motor.  Right now it is working but the motor does not have enough torque.
While it is straining to keep pointing north it is overheating our H bridge
motor control chip.

We would like to use a servo instead of a motor, but all we have is a parallax
servo used in the Boe
Bot<http://parallax.com/Store/Accessories/MotorServos/tabid/163/ProductID/102/List/1/Default.aspx?SortField=ProductName,ProductName>it
is a 6vdc max, 60 rpm, and it is way too slow.

So, we are looking for a servo that is much faster than what we have.  If
you have one, or know where we can borrow one before Friday, please call
Joshua at 734-664-8745.

If for some reason the payload is not recovered or the servo is damaged, we
will reimburse the lender.

Otherwise, when the payload is recovered successfully, and the servo is in
tact, you will be glad to know that your servo is space certified.

if you have any questions or if I can clarify anything, please call or email
me at flamingtennisball at gmail.com

thanks

Joshua