SparkFun will be closed for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).

Member #454860

Member Since: July 17, 2013

Country: United States

  • “As I understand it any kind of induction stove is a transformer…” Any hotplate not described explicitly as (expensive) “induction” will be heated by a resistive heating element, no induction involved. You can heat, e.g., a thin-walled coffee jug; no induction involved. From the price and description of those described here, they do not use induction. (I also have worked with big magnets - if you went near one with a clockwork watch it wouldn’t just be magnetised and affected, all the insides would break loose and rattle inside the case.)

  • An additional viable source of hot air for rework and soldering is a gas soldering iron with interchangeable tips; many such have a hot air tip which delivers a very narrow stream of hot air. There are professional-grade ones (e.g. Portasol, which I have) and cheaper ones. Also some devices which have hot air but no soldering bits. Additional, useful functionality is heat-shrinking. Useless (for me) is hot knife to cut plastics, blowtorch nozzle. When looking into what to use, I found reports of people using these tools professionally, as well as lots of non-pro use. They are portable, if anyone needs to do this sort of work on-site (doubtful?). I think I’ve read of the use of gas blowtorches too.

    Anyone worried about damaging devices with controlled heat: in a test reported in Wikipedia article Rework (electronics) at the end of the Reflowing and reballing section (as of mid-July 2013!), 20 devices were reballed professionally several times; none failed, although one went through 17 heat cycles (in 2 out of 20, professional reballing failed, but succeeded when repeated).

No public wish lists :(