Hey Ted, if your going to build the automatic sliding anaylizer tray you will need these supplies :
Basic servos will not rotate 360 degrees. Here you’ll find the Continuous Rotation Servo:
http://www.hobbyengineering.com/H1429.htm" onclick="window.open(this.href);return false;
It is continuous and variable speed. Even though it’s a servo, it’s basically like a simple slow speed motor. It’s on or off, and the controller adjusts the speed.
You will also need a pulley to be mounted on the servo. This one fits perfectly and has the proper amount of teeth to fit flush:
http://www.servocity.com/html/pulley_wh ... 2045_.html" onclick="window.open(this.href);return false;
To control the speed and to make the servo move in reverse, you’ll need this servo controller:
http://www.servocity.com/html/dual_servo_driver.html" onclick="window.open(this.href);return false;
To power it all up, you’ll need a small battery pack. This battery pack will simply plug in to the controller for easy operation.
http://www.servocity.com/html/battery_trays.html" onclick="window.open(this.href);return false;
Hope this helps some. I can't wait to see it finished! Let me know how it goes Ted.
![thumbs up! :good:](./images/smilies/thumbupmr4.gif)