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Unread 27-01-2014, 17:21
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Re: Shifting with servos

Quote:
Originally Posted by yash101 View Post
Actually, FIRST goes by the output power, not the input power.

Servos are a very bad choice because you will be shifting at top speeds.

You just need to have a pneumatic tank, valve, solenoid, all the basic components. You may be able to run off an external compressor, and precharge the cylinders!
Servo's aren't a very bad choice. They're a great solution if you're only looking to shift a few times a match while you're not moving.
Quote:
Servos have very little output torque, as compared to a piston.
This is false, as pneumatic cylinders have no torque. You can also gear up your servo or use an alternate motor.

Quote:
Also, designing the system with pneumatic pistons would be very easy!
Yes, but a servo is easier. The super shifter comes by default with a servo. You'd need to spend more money and assemble an extra cylinder mount. Also, you'd have to put tanks, valves, regulator... on the robot. I'd argue that servos are a lot easier.