| Electronics > Beginners |
| Homebrew soldering iron. |
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| joeqsmith:
--- Quote from: james_s on January 20, 2019, 04:02:18 am ---Is this a "because you can" type of thing? Because I can't think of another reason to build a soldering iron from scratch. There's no way it will work as well as even a basic off the shelf soldering station. Regarding tip life, I recently replaced the tip on my Edsyn iron which I had been using for at least 15 years with the same tip. Properly cared for, the tip on a temperature controlled iron should last a very long time. --- End quote --- That's a good question. There are several videos on YT showing such homemade irons and other similar devices. If you can afford a computer and software to edit a video, a camera to record it and have access to the internet to post it, you can't be too bad off. Personally, I am doing it because OP had asked and I've never been much of a bench racer or armchair quarterback. It will take YT a while to get the higher resolutions sorted out. Here is the iron running closed loop with Labview. Better but I'm not giving up my old Pace any time soon. https://youtu.be/Xa2TQ583OIU |
| cdev:
Be careful with fibers. Any kind of long thin fiber is bad for your health if its inhaled because the lungs can't clear it. |
| rsjsouza:
For the gun type variant... Several folks made this using a transformer and a secondary wrapped around it. Unfortunately my google-fu is lacking and I could only find very detailed videos but only in portuguese. |
| registereduser:
Just popping in to thank joeqsmith for all the effort. Definitely getting some helpful hints here. Thanks everyone for that matter. |
| joeqsmith:
There are a few problems I see with this basic setup. First, using my bench meter to read the tip temperature is just too slow. I set the temperature for 650F or 343C. A K-type is 14.0mV at this temperature. There is more than enough thermal mass in the tip I used to keep it in tight regulation for small SMD work. Assuming the board has thermal reliefs and it would be fine but not when it comes to heavy work. I had used Kapton to get the heater as close as possible to the tip. It may be better to allow even higher power levels with the faster control loop but that Kapton will need to go. You really need something that is rated for these high temperatures, is thermally conductive but an electrical insulator. Or you are going to have to push the heater harder to overcome it. No doubt, even an analog control system with this basic setup would be usable to some degree. The conversion for voltage to temperature may be found here: https://www.thermocoupleinfo.com/type-k-thermocouple.htm |
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