« previous next »
Pages:  [1]     Go Down

Author Topic: USB Soldering Iron  (Read 4642 times)

0 Members and 1 Guest are viewing this topic.

Offline didjamatic

  • Thread Starter
  • Posts: 1352
USB Soldering Iron
« on: Fri, 11 June 2010, 15:52:20 »
Logged
IBM F :: IBM M :: Northgate :: Cherry G80 :: Realforce :: DAS 4

Offline Rajagra

  • Posts: 1930
USB Soldering Iron
« Reply #1 on: Fri, 11 June 2010, 16:19:18 »
He's making a booster circuit so his USB port can power his keyboards reliably. Then he can place an online order for some lead-free solder. :lol:
Logged

Offline chimera15

  • Posts: 1441
USB Soldering Iron
« Reply #2 on: Fri, 11 June 2010, 19:14:16 »
Must be a special soldering iron that can run on 5v.
Logged
Alps boards:
white real complicated: 1x modified siiig minitouch kb1903,  hhkb light2 english steampunk hack, wireless siig minitouch hack
white with rubber damper(cream)+clicky springs: 2x modified siig minitouch kb1903 1x modified siig minitouch kb1948
white fake simplified:   1x white smk-85, 1x Steampunk compact board hack
white real simplified: 1x unitek k-258
low profile: 1x mint m1242 in box
black: ultra mini wrist keyboard hack
blue: Japanese hhk2 lite hack, 1x siig minitouch pcb/doubleshot dc-2014 caps. kb1903, 1x modified kb1948 Siig minitouch
rainbow test boards:  mck-84sx

Offline ricercar

  • * Elevated Elder
  • Posts: 1697
  • Location: Silicon Valley
  • mostly abides
USB Soldering Iron
« Reply #3 on: Fri, 11 June 2010, 20:32:05 »
Quote
I’m amazed that you can get solder to melt with only 2.5 Watts of power (5V x 500mA).

Yah. Totally.
Logged
I trolled Geekhack and all I got was an eponymous SPOS.

Offline Oqsy

  • Posts: 861
USB Soldering Iron
« Reply #4 on: Fri, 11 June 2010, 20:46:14 »
Did I miss something or is there nothing in that video that even proves it's using usb power?  Just a guy soldering...  nothing special there.  I could whip out my weller and make an identical video claiming its running on the cold fusion reactor under my desk.  I hate to be the cynic, especially if my near blindness really is making miss something that proves it's USB.  I just don't see how it could get enough energy from a USB bus to melt solder.
Logged
[sigpic]Currently in use: Rosewill RK9000 and CH DT225[/sigpic]
"Private misfortunes make for public welfare."

Offline didjamatic

  • Thread Starter
  • Posts: 1352
USB Soldering Iron
« Reply #5 on: Fri, 11 June 2010, 20:52:58 »
Weller BP645MP Battery Powered Soldering Iron runs on 3 AA batteries, so 4.5v is all it needs.
Logged
IBM F :: IBM M :: Northgate :: Cherry G80 :: Realforce :: DAS 4

Offline Rajagra

  • Posts: 1930
USB Soldering Iron
« Reply #6 on: Fri, 11 June 2010, 21:20:23 »
Well he never said how long it took to reach operating temperature. Even 2.5W will get the tip hot eventually. Maybe the important part of the mod was to insulate some of the tip so it didn't lose energy faster than it was being fed.
Logged

Offline Oqsy

  • Posts: 861
USB Soldering Iron
« Reply #7 on: Fri, 11 June 2010, 23:26:37 »
I need to go redo my math...
Logged
[sigpic]Currently in use: Rosewill RK9000 and CH DT225[/sigpic]
"Private misfortunes make for public welfare."

Offline Harry_Y

  • Posts: 63
USB Soldering Iron
« Reply #8 on: Sun, 13 June 2010, 07:33:29 »
I should mod my old portable Wahl soldering iron to charge from usb.

Lead is good, been soldering with it for over 35 years
Logged

Offline Cthulhu

  • Posts: 9
USB Soldering Iron
« Reply #9 on: Sun, 13 June 2010, 18:36:41 »
You can buy USB Soldering Irons for some time now:

http://cgi.ebay.com/USB-White-LED-Precision-Pencil-Type-Soldering-Iron-au1-/130395850402?cmd=ViewItem&pt=AU_Hand_Tools&hash=item1e5c32c6a2

This one supposed to reach 480c another one of those things on ebay.de wich looks identical is said to only reach up to 400c.
Logged
In seinem Haus in R\'lyeh wartet träumend der tote Cthulhu.

Offline dfj

  • Posts: 171
  • Location: Canada
  • Visit our irc: #geekhack on libera.chat!
USB Soldering Iron
« Reply #10 on: Sun, 13 June 2010, 20:27:10 »
Quote from: Oqsy;192346
I need to go redo my math...


Your math is fine - and a soldering iron continually loses heat to the environment via air cooling. That 'iron' appears to be a normal fine tip stuffed into a plastic case.
  So - if your iron is magic and doesn't lose heat to the air etc... whatever you are soldering will - so unless it is a very thin trace to a single pin on an IC, and your soldering iron only heats at the very very tip 2.5W will not be able to keep up with the object you are soldering conducting heat away to the rest of the board, air, etc...
  Unless someone here with a decent rep actually uses one, I'm not believing that those things work.
  Heck, the ebay page even claims the thing draws 800mA via USB... mebbe that's how the seller tries to reduce returns - claim it works fine if your USB will feed it properly, and since USB was still capped at 500mA last I checked (OK, I'm not tracking the new specs carefully, though) folks will usually not have a device to power it. Jes' a theory. ;)
dfj
Logged
Fave Switch manus: IBM, Topre, Matias, ...

Offline TheSoulhunter

  • Posts: 1169
  • Location: Euroland
  • Thorpelicious!
USB Soldering Iron
« Reply #11 on: Sun, 13 June 2010, 22:11:09 »
Perhaps they need to load (ie. a capacitor or a accu) for some (long) time before you can use em (for short time) >.>
Also, recently I read that some part of the specs (USB On-The-Go) allows up to 1.5A for USB1 and up to 1.8A for USB2!
« Last Edit: Sun, 13 June 2010, 22:15:39 by TheSoulhunter »
Logged

Offline kishy

  • Posts: 1576
  • Location: Windsor, ON Canada
  • Eye Bee M
    • http://kishy.ca/
USB Soldering Iron
« Reply #12 on: Mon, 14 June 2010, 00:51:04 »
USB OTG is a very different creature, is it not?

That's what my old Zen Vision:M had to take content from flash drives and memory cards (essentially a USB host in the mobile device).
Logged
Enthusiast of springs which buckle noisily: my keyboards
Want to learn about the Kishsaver?
kishy.ca

Offline ricercar

  • * Elevated Elder
  • Posts: 1697
  • Location: Silicon Valley
  • mostly abides
USB Soldering Iron
« Reply #13 on: Tue, 15 June 2010, 12:27:17 »
At Synopsys, the controller chip for USB OTG is a completely different architecture than regular USB: handled by an entirely different set of engineers than wired USB.  Ditto for wireless USB. For wired USB, one chip architecture handles 1.x/2.x/3.x.
Logged
I trolled Geekhack and all I got was an eponymous SPOS.

Offline dfj

  • Posts: 171
  • Location: Canada
  • Visit our irc: #geekhack on libera.chat!
USB Soldering Iron
« Reply #14 on: Tue, 15 June 2010, 12:37:34 »
Quote from: TheSoulhunter;192888
Perhaps they need to load (ie. a capacitor or a accu) for some (long) time before you can use em (for short time) >.>
Also, recently I read that some part of the specs (USB On-The-Go) allows up to 1.5A for USB1 and up to 1.8A for USB2!


Well, they could charge a battery of one or several cells from USB, slowly...
  But, AAAs won't fit in that handle so it'll be some expensive setup. My guess is the things simply don't work, though.
  Not impossible, just likely a scam. Certainly not worth my cash to find out when I already have decent soldering rigs. :)
  I'd certainly be interested if someone got one to work, though. Especially if they were in some way better than a corded firestarter.

dfj.
Logged
Fave Switch manus: IBM, Topre, Matias, ...

Offline InSanCen

  • Posts: 560
USB Soldering Iron
« Reply #15 on: Tue, 15 June 2010, 17:41:23 »
Meh. Gas iron's are the business in portable iron's.

*Strokes Iroda 150*

But please, don't use cheap **** butane in them, they do die from it. This is my second Iroda, the first just buckled after 2 cans of **** gas.
Logged
Currently Using :- IBM M13 1996, Black :
Currently Own :- 1391406 1989 & 1990 : AT Model F 1985 : Boscom 122 (Black) : G80-3000 : G80-1800 (x2) : Wang 724 : G81-8000LPBGB (Card Reader, MY) : Unitek : AT102W : TVS Gold :
Project\'s :- Wang 724 Pink-->White Clicky : USB Model M : IBM LPFK :
Pointing stuff :- Logitech MX-518 : I-One Lynx R-15 Trackball : M13 Nipple : Microsoft Basic Optical\'s :
Pages:  [1]     Go Up
« previous next »