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
>>
>>
>
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