[FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

hi, please explain to me what is the max. the servos can hold? and will they work for telescoping ideas???
Oh, and i almost forgot, which is better/more powerful, the servos or the FTC motors?? and one last question can you use the drive motors for raising and working the arm???

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

I dont remember the exact power that the servo can produce, but they are way weaker than the FTC motors. I would personally use motors to make an arm unless you want to gear 4 servos together.
The disadvantage however to using motors is that 1. you have to purchase another tetrix motor controller and 2. it is heavier than servos.

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

o hey thx but i made i mistake to my form, i meant which is more powerful servos or NXT motors???

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

Greetings, and welcome to CD. You have asked a lot of questions in you post. I'll do my best to answer as many as i'm qualified to answer.

can you use the drive motors for raising and working the arm???
Yes, you can use the motors for anything you wish. My team is using the 4 large motors to run 1 wheel each. That leaves us with the servos to run an arm. I have seen several teams using two large motors to drive with (one on each side) leaving the other two "drive" motors to run anything else they wanted to put on their robot.

which is better/more powerful, the servos or the FTC motors??
it depends on what you what the motors/servos to do. if you are looking for power, or if you need somthing to turn more than 180 degrees, the motors are your choice. Servos only turn ~180 degrees and are far less powerful than the drive motors. Servos do have some advantages over motors. They return their "center" when releases and they can tell where they are in relation to that center.

hi, please explain to me what is the max. the servos can hold?

I believe the servos are rated for 61 oz/in of torque. That means, it can turn with a weight of 61 oz on an arm 1 inch long. As your arm gets longer the weight that you can put on the end of it decreases.

Feel free to ask more questions, but let me point you to the link to the FTC manual. This can answer any questions you have about, what you can or can't do with the kit in building your robot this year.

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

o hey thx alot that realli helps, but i also made i mistake to my form, i meant which is more powerful; servos or NXT motors??? and what are there pros and cons

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

ok Servo vs NXT motors...

Power wise? the NXT motors hands down.

Pros and cons:
Supposedly, the NXT motors have an encoder in them that can determine 1 degree of rotation. If that's true, and you can get it to work, that could be a VERY power motor to use. The HUGE negative to the NXT motor is the shape and the difficulty of matching it with the Tetrix metal.

The servos have hard stops which can make programing easy. The biggest problem with the servos are the relative lack of power and the fact they only have 180 degree rotation.

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

Don't let power stop you though. There are many "legal" ways to enhance the servos so that they lift an arm, let's say...11" long with about 7 pounds attached to the end. Yes, the torque needed to lift that is crazy, but there are ways to enhance the system to cause the arm to lift.

Well...not enhance the servos, just enhance the arm lifting system. :D.

Trust me, there are ways. Yes way*s*.

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

Is it possible to modify the servos so that they can rotate more 180 degrees, if soo is that allowed for the FTC.

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

According to ServoCity, here are the servo specs

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

Modifying the servos would be against the rules. Electronic devices or motors/servos cannot be altered in any way. :D.

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

hey thx guys you have been great helps, but just to make sure altering or modifying any structural parts IS alowed right???

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

again, check the rules for the official answer, but yes. Altering structural parts, in general, is allowed.

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

Well, not exactly. Structural parts cannot be welder, soldered, brazed, or glued. :D.

Yeah, read the rules. http://www.usfirst.org/uploadedFiles...he%20Robot.pdf .

That link will take you to the robot section of the manual, this will tell what all you can or cannot put on ur robot and what you can do to metal and stuff.

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

Not allowing servo hacks is just plain too autocratic, imho.

Lets all email the power brokers and ask for this rule to be moded?
:confused:

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

thx and i was also wondering, for on the NXT motors can we tread the 4 orange cirles so that we can put screws in it???

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

Hm..that would be something to post onto the FIRST forums for official word.

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

agreed
http://forums.usfirst.org/forumdisplay.php?f=26

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

I looked up the output torque of the NXT motors last week, and it wasn't much higher than the FTC servos. If my memory serves, it is between 70 and 75 ounce inches. Compare that with 61 oz in for the servos.

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

o and i almost forgot to ask with my previous questions that are we allowed to use ANY size or Type of bolts and/or nuts ??????

Re: [FTC]: [FTC]: Can any one explain to me just how powerful the servos are?
 

No. You can only the sizes/types that came with the FTC kit or you can use ones that are the same size/type, as the VEX screws.

And obviously, the nut has to fit around the screw. But once again, only Tetrix or VEX nuts can be used.