Quote:
Originally Posted by MrB
Oh and please don't laugh at the quality of Bobs board  .. it is an exact copy(photo-resist) of what my laser printer spat out... need a new (sharper, denser) printer. |
Simon, there is nothing wrong with how your board turned out
However, you guys should have removed the residual photoresist (with acetone) and applied for example Electrolube Clear protective lacquer before soldering to make it easier (I think this stuff is still available at some DSE stores, but I bet no-one from staff knows what it is
- it works as soldering flux as well, besides protecting copper from corrosion).
Otherwise, board is alive.. so the short must have been somewhere else, or the solder blob that caused it fell off before the board arrived at my work bench.
Or, there was a short with housing (because 5V track on Simon's board goes very close to the edge - the PCB was cut a bit too small).