Talk:PC Power Supply

AndrewBCN 20/10/2014 Much of the information on this page is very good but presented in a disorganized way, some information is obsolete, and imho it lacks a couple more warnings about safety. PC power supplies (which I prefer to call ATX PSUs, because that's the standard designation for these power supplies) are dangerous! Since I have converted three ATX PSUs for RepRap use and am right now documenting my 3rd conversion, I intend to contribute to this page and perhaps also work on a Spanish translation. Any help in doing so will be much appreciated!

Dangerous? I broke many many items as hobbyist, but these PS supplies are sturdy and as harmless as a 220V driven device can get. Toasters are definitely far more dangerous. I'd happily learn about what the danger of such an unopened PSU would be. Spilling a cup of coffee through the venting slits?

ABCN They are dangerous even when unopened and operating normally in the sense that they can supply very high currents, and a short circuit on a PCB will possibly result in smoke and flames. And yes, if you spill any liquid or drop any metallic object inside a live ATX PSU you can expect some problems, again possibly smoke and flames. When opened and if powered on, you have all the risks associated with a naked high voltage, high current device i.e. can be fatal in some circumstances. So for example a fair warning when opening any ATX PSU is to unplug its power cable and let it discharge for at least 10 minutes.

BTW., what are you "converting" there? I simply plug them in as-is. No need to open them at all. However, I do see many many people lamenting about how complicated a "conversion" would be. My usual answer: "don't convert, just use it".

ABCN That applies to users of Gen7 electronics and other ATX-ready RepRap boards. Unfortunately the almost universal RAMPS 1.4 was not designed with an ATX connector (a huge flaw imho) so when using an ATX PSU with a RAMPS 1.4 one is forced to cut a few cables. I intend to write a page with a detailed guide on how to do that safely.

Last not least, I entirely agree about this page being a bit disorganised/overfilled. For example, I don't see much value in explaining average RepRappers the difference between minimum load, base load and balancing load. Would you agree on keeping dead simple instructions near the top of the page and move more detailed descriptions below that?

ABCN I think you know as well as I do that there is no such thing as an average RepRappper. ;-) But I fully agree about keeping the simple stuff on top and the nitty-gritty at the bottom of wiki pages (and opinions/discussions in the discussion page)!

All this nasty stuff said, I'm very happy to see somebody writing not just advertisements into the wiki. Thanks! --Traumflug (talk) 16:45, 19 October 2014 (PDT)

ABCN You are welcome and I am the one to thank you for all your important contributions to the RepRap world!