[Coco] Desoldering tools

[dwight.bazinet]

I used to have access to a PACE PRC 2000... well to be more precise I was
the tech lead in a tactical avionics lab and had one at the prototype
assembly and rework bench.  Plus I had people that were professionally
trained to use it.

The Desolderin tool is
www.paceworldwide.com/products/handpieces/sodrxtractors/sx100-sodrxtractor-desoldering-handpiece-intelliheat

I wish I could pick up a 2000 surplus; I just checked and a SX100 is almost
$500US new on EBay...

Given that I can't afford that for hobbying, I'm trying to figure out what
a good but inexpensive substitute would be... I've delayed buying a prooer
temp controlled iron trying to figure tht out.

The nice thing about the SX100 is it is continuous vacuum... not a surge
like a plunger.  As I said in the other thread you just apply a little
liquid flux (vice resoldering) heat just until liquid, and then vacuum...
heat and vacuum are same tool.  Completely cleans the pin to the point you
can remove 40 pins, but the heat is quick and precise so it doesn't damage
the device or traces.



On Oct 19, 2017 4:45 PM, "didier derny" <didier at aida.org> wrote:

> Interesting....
>
> looks like the tp-100 but far less expensive...
>
>
> On 19/10/2017 21:20, Grumpyx wrote:
>
>> I use an older Hakko de-soldering gun looks like the generic version I've
>> linked below. It appears Hakko has a newer version now. Be sure to order
>> extra filters as they are key to them continuing to work well. I also like
>> that's it portable.
>>
>> https://www.ebay.com/itm/S-993A-110V-90W-Electric-Vacuum-
>> Desoldering-Pump-Solder-Sucker-Gun-In-US-/251876278039?epid=504338133&
>> hash=item3aa4feff17:g:i9MAAOSwdGFY2fNZ
>>
>> I have seen mentioned before with older solder joints sometimes it's
>> better
>> if you re-solder them with fresh solder before using the de-solder pump. I
>> have used this tip many times and it has helped save parts and pads.
>>
>> Malcom
>>
>>
>>
>>
>>
>> On Thu, Oct 19, 2017 at 2:20 PM, Salvador Garcia via Coco <
>> coco at maltedmedia.com> wrote:
>>
>> Since desoldering was mentioned in the thread titled "I've killed my
>>> CoCo", I thought I'd ask about what tools are used to desolder chips.
>>>
>>> Ed mentioned that different techniques work for different people, so I am
>>> interested in hearing what others have to say.
>>>
>>> Lately, I had to desolder a bunch of electrolytic caps (not CoCo related)
>>> and I found that it took a while for the solder to melt and release the
>>> cap's lead.
>>>
>>> In the past, I've used a desoldering pump like this one:
>>>
>>> https://www.digikey.com/product-detail/en/17537/243-1184-ND/1992578
>>>
>>> While effective, I found that I needed to press it against the PCB
>>> because
>>> if I didn't, the "kickback" from the pump action would move the pump away
>>> from the PCB, not effectively sucking the solder. Also, I found that for
>>> me, this device worked best when I applied the heat on one side of the
>>> PCB
>>> while pressing the pump's tip to the other side and releasing it when the
>>> solder melted. However, this was not always possible and sometimes I
>>> found
>>> myself having to melt the solder (on the PCB''s solder side) then quickly
>>> pressing the pump's tip against the PCB and releasing it. This worked,
>>> but
>>> rather clumsily. Currently, the pump has seen better days because it no
>>> longer locks in position reliably.
>>>
>>> When I had to remove the 6809 from my non-functional CoCo 3 I used solder
>>> wick. This worked, as evidenced by the silvery finish on the wick, but I
>>> have taken too long to remove all the solder and I still have not been
>>> able
>>> to free all the pins.
>>>
>>> I saw a desoldering gun in action at a recent Maker event and was
>>> impressed.
>>>
>>> I don't desolder often, but when I do, I really need an effective way of
>>> doing this. I was looking into buying a desoldering gun, but the prices
>>> hover around $150 USD and this is too expensive for me for just
>>> occasional
>>> use.
>>>
>>> I hope other share their experiences and the tools that they use, perhaps
>>> recommending specific products.I certainly am interested in learning from
>>> others' expriences :-).
>>>
>>> Thanks, best wishes, Salvador
>>>
>>>
>>> --
>>> Coco mailing list
>>> Coco at maltedmedia.com
>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>>
>>>
>
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