[hpsdr] SMD rework advise needed, Ozy BOM

[Rob Frohne]

Hi Tim,

Scotty is supposed to come out with BOMs for all the boards that TAPR 
produced. We need to be patient, and it is hard. :-) I suggest you have 
a look at the sites describing using a toaster oven for surface mount 
soldering. Also, the solder paste works best when it is fairly new, so 
don't stock up big time, and it may be best to keep it in the freezer 
for storage. Here we have an LPKF circuit board engraver, and I plan to 
use it to make solder stencils for my boards. With those it is much 
faster to build the boards. It is amazing how when you are soldering on 
a board with solder mask, the solder paste as it melts flows to the pads 
and parts where it is supposed to go. You have to be careful not to get 
too much paste on the board.

Maybe Scotty will give us an update on his progress sometime.

73,

Rob, KL7NA

Tim O'Rourke wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> I need some advise on a good hot air station and source for flux pen and syringe with solder paste. I have done a fair amount of smd work but as the density gets higher you old techniques are not working. 
> It seems that the Ozy BOM link is not working with digikey, they may have changed there BOM storage method.
> Tim W4YN
>
>
> Tim O'Rourke 
> W4YN at ARRL.Net
> Low Power Amateur Radio Rocks 
> Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member
> NHRA Life Member
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-- 
Rob Frohne, Ph.D., P.E.
E.F. Cross School of Engineering
Walla Walla University
100 SW 4th Street
College Place, WA 99324
(509) 527-2075			 http://people.wallawalla.edu/~Rob.Frohne/


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