Homemade perfect quality double sided printed citruit board (PCB) for SMD
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Uploader Comments (FlyWithGuitar)
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All Comments (18)
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I have used photo resists on silk screens for shirts, and we never had to wait 8 min OR break the bulbs. we used one 175W ( I think ) mercury vapor lamp as it was for 5 min, usually less. w/ vacuum sheet for intimate contact during exposure. or 45 seconds in direct sunlight w/ a back board for contact during exposure. highly reliable and comes off w/ mineral spirits.
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When the sandpaper is filled with dirt, I take a cloath and wipe it. This way I can reuse it many times.
OK, I will stop now, since I don't know if this will be published at all. Keep on the good work and Bye.
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how much wattage is the lamp?
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You can remove photoresisty with acetone.
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I think that music on certain videos such as this take away the attractiveness of the video and makes them less interesting, although the subject is extremely good
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why is hot water dangerous for americans? lol
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What was your UV exposure time ?
Tycho343 4 months ago
@Tycho343 8 min enough with these lamps.
FlyWithGuitar 4 months ago
I thought the photo-resist was sprayed on far too thick but it worked very well. Is that how you're supposed to do it or just the way you found worked best?
Tda7000 5 months ago
@Tda7000 Yes this method have the best quality and no problem to make more then one boards.
FlyWithGuitar 5 months ago