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I too use photoresist boards as they come out accurate.Foils can be very close together.I print the foil layout on a laser printer transparency.Once you have it setup, the whole process of expose,develope,and etch takes about 40 minutes.Drilling time of course depends on the number of holes.One nice thing is the component holes are etched out,letting the drill bit slide right into place.The boards are more expensive and you need the ultraviolet light.For a good looking one time project its perfect.
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