--- In
Homebrew_PCBs@yahoogroups.com, Markus Zingg <homebrew-pcb@...>
wrote:
>
> If I have components on both sides, I just do the simpler side
first,
> reflow it, then do the other side. No part ever felt off so far.
I've
> not yet been brave enough to populate both sides and do it in one
> shot.... :-) Nice to hear that this would be an option also. I
prefer
> the two step aproach cause you then don't have to be THAT carefull
with
> not disturbing the already populated but not yet reflowed side.
>
> Markus
>
> eeks123 schrieb:
> >
> >
> > > Tacky enough that I have populated boards on both sides at the
same
I definitely think Markus's method of reflowing twice, as opposed to
using glue dots etc. is a much better method to use unless the
components on the bottom of your board are large (maybe bigger than a
SOT23). I would expect that even the bigger components might not fall
off.
As I mentioned before, if you use glue dots you have to make sure
your component is perfectly lined up. It is not a very forgiving
method when doing it by hand. It's always nice to have the "gift of
surface tension" to pull the component into alignment during refolow.
It's important to be a doer and try it out. If a component falls off
the bottom during the second reflow, then maybe think about using a
tiny glue dot, just for the component(s) that fell off.
Anthony Burch
http://www.SuperSolderingSecrets.com