[FTC]: Team 35's Servo Test

[ttldomination]

Well, sorry bout the double post, but 35 rings are about 6.5 pounds. With a couple o' gear reductions.... I see potential.

[jbbjjbt]

Originally Posted by ttldomination

Well, sorry bout the double post, but 35 rings are about 6.5 pounds. With a couple o' gear reductions.... I see potential.

Remember with a gear reduction of two the servo only goes +/- 45 degrees. with a ger reduction of three that would be +/- 30 degrees.

[ttldomination]

Touche, well, there are other ways to get the mechanism up without even gearing the servo. Heck, if you wanted, you could gear the servos for speed. .

[wilsonmw04]

http://www.flickr.com/photos/wilsonm...7608365268449/

A quick test of a 4-bar linkage with the new 2008 FTC kit. The programing is a tad off, but it does give you an idea of the power of the servos and the possibilities of the new kit. The arm was made with two 16" C-channel and a 6" short member. Our final arm will be shorter, but will look a lot like this.

We are now working on programing that does not relate stick position with servo position. We would like to have the servos act more like a motor, so that when we take our hands off the stick the arm stays where we want it rather than returning to the neutral position.

[ttldomination]

Interesting, very nicely built. A few quick questions.

1. was the tower attached or were you or someone holding it in place?

2. More of a suggestion, you could have the joy stick value *add* to the position of the encoder instead of setting the joystick value to the value of the servo.

For example:

servovalue = servovalue + joystick value;
Servo[a] = servovalue;

Where the joystick no longer equals the position of the servo. Simply changes the position.

[wilsonmw04]

It was attached to the front of the frame straight to the C-channel. This was not intended to be permanent, just a proof of concept. The Kids are working on a working mount as I type.

[ttldomination]

It looks REALLY good and powerful. :d.