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Unread 08-03-2009, 16:28
Lil' Lavery Lil' Lavery is offline
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AKA: Sean Lavery
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Re: Why Hasn't first gone Brushless?

Quote:
Originally Posted by Ben87 View Post
I understand the cost Of it, not saying that they would need to be supplied in the KOP, but why not make them legal. I dont see anyone complaining about the cost of the cRio's....
They aren't cheap either but everyone benefits from them
The problem then is, as pointed out by multiple people earlier in the thread, it widens the gap between the "have" and "have not" teams. Motors have typically been (aside of additional CIMs and spares) provided in the KoP and teams have only been allowed to use the provided KoP motors. This ensures equality, as well as helps teams learn how to effectively use provided resources.

Quote:
Originally Posted by Ben87 View Post
At only 337watts the cim motor is not THAT powerful of a motor.. The Brushless system of my Brushless rc car puts out more then double that. If you wanted something comparable to the cim in brushless form, it would be half the size and the only thing needed to use it are shaft adapters which can easily be made.

As for price, Not every system you look at is that expensive
http://www.hobbycity.com/hobbycity/s...idProduct=7392
Take for example, that motor 30 bucks, and rated for double the power and more then the cim.

Before everyone jumps to conclusions about price and effectiveness, do some research- things are always not as they seem.
Nobody hear said that the CIM is that powerful, but it is powerful enough for virtually any FIRST application. Even in carpeted games, a two-CIM per side drivetrain through a transmission can produce more than enough force to break traction wheels loose from the floor. Once you surpass your static friction, additional force doesn't do much good.

The motor alone isn't the only thing that adds cost to a brushless motor. Teams would then need to buy addition speed controllers (though usually in the same ballpark as jaguars and victors) for their new non-KoP motors.

What voltage is the motor you linked to designed to run at? The one I found was designed for 10.5 and put out comparable numbers to a CIM, although was significantly more expensive.
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