After I built my 1st module the 120 back in 2001, I got a Panavise and have never looked back. I don't do the 90-degree-crimp/snip/solder. I do the 60-degree-bend/solder/snip. Has worked perfect for me. Can do about a dozen components at a time, until leads start to interfere with each other. I also bend IC pins 60 degrees and do multiple ICs at once. I hover with the iron less that 2 secs on a polystyrene cap leads and don't do the other lead until after 10 secs (rotate around). Same technique for ICs. George Richard Brewster wrote: > I've heard the term 'crimping' used to describe what I do, but I > understand your meaning. I do fold the leads 90 degrees to lie flat on > the board and then cut them before soldering. I've never found this to > be a problem for desoldering. A good quality solder wick will suck up > all the solder and leave the wire easily lifted. (Is there a good video > on desoldering, I wonder?) Then again, I've done a lot of circuit board > repair, so maybe it's not as big a deal to me as to a novice. Replacing > a resistor or capacitor is isn't that difficult, especially if you have > a Panavise (http://www.panaviseonline.com) for holding the board. The > alternative is to make a 45 degree bend in the leads, cut them and > solder. The drawback to this technique is that you have to do one > component at a time. > > Richard > http://www.pugix.com > > Graham Atkins wrote: >> Richard, >> >> On 1 Mar 2009, at 15:50, Richard Brewster wrote: >> >>> I >>> always press leads all the way over to the board, so they are not >>> sticking up, but are lying flat. This is called crimping the lead to >>> the board. I'll crimp lots of parts, then cut all the leads, solder, >>> wash. They don't fall out, because they're crimped. I received some >>> kits from John Blacet with all resistors installed and crimped, but >>> not >>> soldered. They stayed in place during shipping. >>> >>> >> "Crimping" means forming the leads in some way. Some radial capacitors >> for example have the leads cut short and formed with a small "wave" >> which >> helps them to be pushed into the PCB and holds them whilst soldering. >> Just folding the leads through 90 deg to be flush with the board is >> not really >> crimping and also makes the component much harder to desolder and remove >> the component to change / repair. >> >> Graham >> >> > > > > > ------------------------------------ > > Yahoo! Groups Links > > > >
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Re: [motm] Soldering Technique (was: Can static electricity damage components?)
2009-03-02 by George Kisslak
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