[Open_electroporator] just got back + ten days

Nathan McCorkle nmz787 at gmail.com
Thu Apr 20 18:50:52 UTC 2017


For soldering tiny parts like those MOSFETs, I put a pair of angled
tweezers into a 'helping hands'... then set the tip of the tweezers so
they would be held at or below the surface of the work table. Then I
can set the tip of the tweezers onto my SMD part, providing some
downward pressure so solder doesn't cause it to twist and turn as the
hot metal wicks onto the pad.

I've also use a bent L-shaped piece of 12 or 14 gauge copper wire,
instead of tweezers... the household 110V stuff.

On Thu, Apr 20, 2017 at 9:01 AM, John Griessen <john at cibolo.com> wrote:
> On 04/12/2017 12:57 PM, John Griessen wrote:
>>
>> I'll try a mass erase for sure, then see if it can be re-flashed
>
>
> It's been a little longer getting back in the swing of things  required
> family
> outings and house maintenance needed doing.
>
> Now I have my lone G30_TH mass erased and will try Nathan's program and see
> if I get
> pulses.   Then I'll need to build up another HV board for him to use.
>
> I've started using a speed up method for hand assembly of prototypes:  The
> parts have tin plating on them
> and new boards do also, and with a clean solder iron and a small springy
> tool holding a part down hard,
> it is possible to tack solder one terminal of a part in place without adding
> solder paste or solder wire.
> So that step goes really quickly, allows easy adjustment, and locks parts in
> place for the next step.
> After one terminal is held, solder the other with paste, then do others in a
> row, then go
> back to the first terminal on all and solder it properly and get much done
> with less random parts movement.
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-- 
-Nathan


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