Make-shift Fan

[macdad-]

they can run between 50% and 150% of there specified voltage.

where did you get these numbers?

I got it from the book "Intermidiate Robot Building" by Dave Cook visit his website at www.robotroom.com nominal voltage is key important when it comes to selecting a motor for your robot, you have to select one that doesnt take to much amps and one that is close to the supply voltage from the robot(eg. supply voltage: 9Vs  nominal voltage of 12v motor: min(50%):6V  max(150%):30V)

I Build scratch built robots and Lego mindstorms, programming on a computer and playing on a computer are not wat i always do.

So the nominal voltage is were i got the numbers and the nominal voltage i got from reading  "Intermidiate Robot Building"

[patio]

Robot motors and fans aren't exactly the same thing...

 

[Dias de verano]

Robot motors and fans aren't exactly the same thing...

 

Yes, a robot motor that e.g. actuates a limb would be rated for short term service (start-stop) where you can tolerate brief overcurrents whereas a motor for a fan is running all the time.

[macdad-]

thats true but there still motors.

[homer]

I was reiterating that he doesn't need a wall wart, he can get 12v DC from a Molex (disc drive) power connector.

why are you telling me all of this? i have been in the hardware forum longer then you have. also, if you have read any of my previous posts, you should get the idea that i know what i am talking about with regards to computers and electrical applications. all that being said, im offended that you had this misconception that i didnt know comp PSU's could supply 12VDC.

thats true but there still motors.

not all motors are the same. there are continuous duty motors and non-continuous duty motors. fans have to be designed to be continuous because they are on for the duration of the computer being on. on the other hand, a motor in a robot could be rated as a non-continuous motor because, as dias said, it is not running all the time.

[Dias de verano]

why are you telling me all of this?

Homer, I wasn't telling ***you*** that, I was telling ***him***.

i have been in the hardware forum longer then you have

And that proves what, exactly? I have been studying electrical technology since 1965 and worked as a technician for 15 years, and so what? Sounds like you have issues, my friend.

also, if you have read any of my previous posts, you should get the idea that i know what i am talking about with regards to computers and electrical applications.

No comment. 

all that being said, im offended that you had this misconception that i didnt know comp PSU's could supply 12VDC.

Maybe your reading/comprehension skills could do with a catch-up?

[homer]

Maybe your reading/comprehension skills could do with a catch-up?

as could your maturity, as it seems to be stuck at the age 15. if you are as old as you say you are, i suggest you start acting like it.

[mroilfield]

Can't we all just get along?   

Or atleast just agree to disagree

[street1 (RIP)]

http://www.albion.com/bookNetiquette/0963702513p71.html

[macdad-]

ok you guys i have only known the basics and some of the advanced stuff(eg microcontroller programming, logic gates, VCO(voltage controlled oscillator), and power supplies) im not a genius on the stuff. Homer i dont deny that you have knowledge on the matter but let Dias handle it more since he's been in the electrical field for years so he has more experience.   

and quit yelling and name callin. the whole point that i posted this topic was to give an update to Calum and Dias, if powering the fan with a couple of 9Vs worked.

But i do thank you guys for your advice and input.