[?]

Run it slow and observe actions from the top and bottom.  Trial and error
setting until satisfied.

I tested dozens five-board loads last night with pretty near bullet-proof
feeding and loading - - even the first one out which seems to be the one to
most likely to mess up.  Now to make more boards and test with a full bay.

The secret to soldering from: "Alex Mendelsohn" <alexm@ispchannel.com>

The secret to soldering is to have enough heat at the point of contact for
just the right time--and scrupulous preparation.

The latter means you should scrape, sand, or steelwool the surface to be
soldered, and then clean it of all oils, residues, and
contaminants--including fingerprints. I use denatured alcohol for this,
after I make sure the surfaces to be joined are shiny.

Never carry the solder to the work on the soldering iron tip! Always heat
the work and add the solder to the work at the same time. The use of a good
resin-core solder such as Ersin Multicore or Kester 60/40 is essential.

The flux will cause the solder to "flow." Sometimes adding just a little bit
of solder to the work or the iron's tip will also cause the flowing effect.
Just don't over-do it. And, don't use acid fluxes where you won't be able to
remove every trace later. They can cause nasty corrosion. However, I use
paste flux quite a bit on larger items. I clean it off with denatured or 99
percent isopropyl alcohol.

Also, use a wet sponge to keep the iron's tip clean. I clean the tip by
swiping it on the sponge before EVERY joint is made. Then I add a miniscule
bit of solder to get the flux flowing and keep the tip "tinned." I also use
steel tips, not copper. If you use copper, you can "dress" the tip with a
file every now and then as needed. Do NOT file or dress a stainless tip!
You'll ruin it, and they're expensive.

Sometimes, with larger peices, or items you're going to "sweat solder"
together, it pays to pre-coat the surfaces. This is called "tinning." Just
prepare the pirces, and coat them with a thin solder "plating" before
joining them with extra solder. Oftentimes you'll tin a job before putting
it into place with the other piece to be joined.

Sweating two pieces is nice because you don't see the soldered connection or
joint. The two pieces are previously tinned and then placed together and
then heated until the solder on the hidden surfaces flows toegther.

Also, once the solder is joining the work, be sure not to move the pieces
until the solder cools and sets. If you see a grainy effect, the soldered
connection is said to be a "cold" solder connection. Re-do it! Do not cool a
joint with water either. Let it set or cool naturally.

You can use a "solder sucker" to remove excess solder or to de-solder
something, or try solder wick. Solder wick is a copper braid that sucks up
solder, but it needs a little added flux-based solder to make it "start." I
prefer a solder sucker, but they're much more costly. The solder sucker is a
spring loaded affair with a trigger and a heat-resistant tip. You place it
on the molten solder and hit the trigger and---bingo--the solder gets sucked
into the tool, leaving a clena (and usually tinned) surface!

Regards and good luck, Alex in Kennebunk, Maine