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harshal
10-01-2007, 04:41 PM
i am not very much familiar with basics of motors?
what is difference between DC motor and step up motors?
i wanna participate in robotics competition.
can anyone help me for selecting type of motor?
or where can i get info abt types of motors their advantages applications etc.?

MohitM
10-01-2007, 05:19 PM
step up motors
That's a new one for me! You probably mean a stepper motor.

There is this site these days on the internet.
www.google.com

You could try doing a search there.

--
Mohit Mahajan,
www.BioZen.co.in

vikas
10-01-2007, 09:00 PM
http://roboticsindia.com/modules.php?name=News&file=article&sid=58&mode=&order=0&thold=0

Ulhas
10-01-2007, 10:37 PM
i am not very much familiar with basics of motors?
what is difference between DC motor and step up motors?
i wanna participate in robotics competition.
can anyone help me for selecting type of motor?
or where can i get info abt types of motors their advantages applications etc.?

www.google.co.in

regards

ulhas

PyroElectro
11-13-2007, 11:47 AM
If you do indeed mean 'stepper motor' and not step up then the answer is pretty simple.

The way they work.

DC motors are straight forward. You give them a voltage and they spin, provided your battery can give the motor enough current to get going. (This is why solar panels aren't that great at powering motors!)

Stepper motors sometimes called 'brushless' motors rely on currents flowing through 2 or more coils to turn the motor. Most basic stepper motors have 2 coils. The current flow through each coil must be changed several times inorder to create a 'step' which will be movement by a specified angle. This is where it gets the name 'stepper motor' from.

Overall, dc motors are easier to control but stepper motors will give you more accuracy.

The previous post's link has a better explanation, enjoy.

docel
11-13-2007, 12:20 PM
In the case of load bearing and torque, DC motors are the only choice.
STEPPER motors are Positional motors, have little or no torque, inefficient mechanically and electrically, and cannot be used for load carrying. The advantage of 'accuracy' and ease of use is too far away from the quoted reasons.

:arrow: DC geared motors are what you need!!

Good luck!!!