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anyone? How to build a usb solder iron on my own? Answered

i'v been goofing around for this over month now but could not come up with a solution. And 26$ is pretty xpensive 4 me so u know.

9 Replies

user
gesown (author)2011-04-16

Battery powered soldering irons do not even require continuous connection. USB outlets could be used to charge a battery powered iron. All depends on why USB is desired. Might be wanting to charge an iron from a laptop computer.

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orksecurity (author)2010-12-21

Have you looked at the Instrucable? (See Related at right.)

Personally, I think the concept of a USB soldering iron is inherently Wrong, but de gustibus....

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user
crazynath (author)orksecurity2010-12-21

yes i see it. i have a old damaged soldering iron. i wanted to use those parts and make a usb soldering iron. thats all..

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steveastrouk (author)crazynath2010-12-22

Just because you could make "USB" powered iron, doesn't mean you should make one. A 0.5W Iron ain't going to solder much, and that's all the power you can take from most USB ports.

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orksecurity (author)steveastrouk2010-12-22

Yep. If you want to repair the iron, great... but you should probably be repairing it as it was. Among other things, if you *were* going to build a USB-powered soldering iron, I think you'd have to use a very different heating element -- not just because of limited power, but also because you'd be running off different voltage.

I still recommend finding a different project. Risks and effort outweigh possible returns on this one.

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seandogue (author)orksecurity2010-12-21

Agreed. Seems a silly pursuit.

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orksecurity (author)2010-12-21

Offline, I was asked why this seemed foolish. Since it makes more sense to post the answers publicly, for feedback from some and to educate others:

1) There's no particular reason to power it from USB. Power outlets are everywhere, and USB doesn't free you from the need for a power cord.

2) A soldering iron draws a significant amount of power. That would put a fairly heavy load on your PC's power supply and/or batteries, even if they _can_ handle the demand. Given how expensive PC parts are, I see no reason to risk hurting them.

3) Soldering irons are CHEAP. You can buy a basic iron for less than you'd probably pay constructing this kluge. A middling-fancy one can be had for under $25.

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lemonie (author)2010-12-21


Not enough power or not a good idea. Do you have a soldering-bit that runs on 5V?

L

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