who where wrote:

On Sat, 23 Apr 2011 16:24:17 +0100, "N_Cook"
wrote:

Where holes are drilled for thru-board components but of diameter far too
big , thru-hole plated , but no eyelet/inserts used to fill the gap. So
1N4001 size leads in holes twice their diameter and 1N4148 in holes twice
their diameter. So not a case of only one drill size for all. So in area
terms about 1 to 4 ratio of lead to solder. Bad enough practise with proper
solder but with PbF, ring cracks starting all over.
Is it to avoid mutiny by the by-hand board populators ?

It was always my understanding that the "oversized" PTH was a
deliberate choice. If significant current needs to pass to both
planes, a (proper, of course, not RoHS) solder plug enhances the
through-plating's capability.


It makes more sense to just specify a thicker plating on the PTH.
Solder his a higher resistance, and is much weaker.


--
You can't fix stupid. You can't even put a Band-Aid™ on it, because it's
Teflon coated.