My humingbird died...

by **AndreasK** » 30 Oct 2007 5:12

I modified a little humingbird tothpick tor run on 9v and i put a little pick in the front it worked great

........IN ONE MINUTE!:x then it died. That was a waste of 10bux

. has this happned to any one else :?:

I know 9volts is to allot but 1minute.... :evil:

http://i213.photobucket.com/albums/cc20 ... C07555.jpg

by **josh0094** » 30 Oct 2007 18:12

what was the voltage that it was originaly running on? motors need very exact voltages or else they burn out.

by **Trip Doctor** » 30 Oct 2007 19:44

Lol. I first read this, and though that an actual bird died. I read thee 2nd post first, and the first thing I read was "what was the voltage".. and I thought, "man the OP is a sadist". But yea, as josh said, if the thing was meant to run on like 6 or so volts.. and you gave it 9, that's not a good overload on the motor (just as you wouldn't want to burn out a lightbulb, you don't want to overload the motor).

Now that I look at the pic, it looks like it was meant to run on a AA (or AAA), so... that's 1.5V. Putting 9V into it could have very well done it.

by **CVScam** » 30 Oct 2007 20:04

I have made 2 humingbird lock picks. They are both still working fine on the 9 volt batteries. I only hold the button down for about 10-15 secs at a time. Electric picks seem to work fast or not at all for me. I had a lot better success with making electric picks from electric shavers.

by **mcm757207** » 30 Oct 2007 21:13

I used a "singer" brand electric scissors (I think there was a guide on here a while ago) to make my electric pick gun, and I modded it from 6V (4 AA) to 18V (2 9V), and it worked fine for over a year until the arm broke on it. I made another one, and supported the arm with string steal and epoxy and I suspect it'll last a lot longer now.

by **AndreasK** » 31 Oct 2007 3:37

all the guides i read said to use 9volts so why rite that if it will burn the motor...

by **Jaakko** » 31 Oct 2007 6:23

AndreasK wrote:all the guides i read said to use 9volts so why rite that if it will burn the motor...

It works okay if you will not use it for long periods. As said, just use it for maximum of 10-15 seconds at a time and let it cool of a little.

by **AndreasK** » 31 Oct 2007 9:20

when i think back i used it for like 40secunds without letting go of the button.
see....i was attempting to pick a lick with 4 spoolpinsn and got pissed off.........

by **AndreasK** » 31 Oct 2007 9:22

OPPZ sorry about the bad spelling you see i am form sweden im only 15 and i am very stressed and tired. :lol:

by **Kaotik** » 31 Oct 2007 20:23

The Hummingbird is rated for 1.5 volts dc.

It will work as previously said with a 9 volt intermitting current, just not continuous or as you experienced, will burn out.

by **Servalite6354** » 3 Nov 2007 13:29

Voltage isn't really what harms a motor. The current through the motor is what damages it. Of course, that higher current is caused by the higher voltage when nothing else is changed (google "Ohm's Law", if you'd like to learn more). If you have a 9V battery connected to a motor that is rated 1.5V or 3V, you are way over the rated abilities of the motor. Unless you run it for very short periods of time, you're going to heat up the very small coils of wire in the motor, and damage the insulation on the wires. It looks like they're bare wires, but they are insulated. When the insulation fails, the wires short, and the motor is toast.

If you added a resistor in series with the battery, you would limit the current to the motor, and would have a better chance of not killing the motor, at the cost of reducing you current, which will run the motor at a lower speed than unrestricted 9 volts, but faster than the normal voltage. Not knowing the specs on that particular motor, I couldn't tell you what value of resistance to use.

I don't think it's a problem to step up the voltage slightly, maybe 1.5V more than the rated voltage. That's one more AA battery.

Another solution, if feasible, is to add heat sinks to the motor or some other cooling device, to keep that insulation from being destroyed.

by **AndreasK** » 7 Nov 2007 11:22

so you are saying that i need lesst amps :?:

by **Stray** » 7 Nov 2007 17:24

current measured in amps yes...

by **AndreasK** » 10 Nov 2007 7:37

about how many amps is recomended??

by **Trip Doctor** » 11 Nov 2007 1:20

Depends on the motor. It might have the rating written on it if you can take it out. Are you unsatisfied with running the thing with one AA ?

My humingbird died...

My humingbird died...

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