Obviously a slightly more powerful laser should speed it up a great deal, but kind of clever thinking to do it that way. Nice finish as well
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The first is using normal photo resist, the laser just does the UV work. All home methods have quality issue potential, but if you need a quick test board it might be an option/Looks good. My one concern would be a possible blanket of copper particles a few microns thick that didn't get picked up by the laser and/or etching process.
If a solder mask could be applied and then burnt off, that would be great!
I dont know, I will post the other videos up. All I know is the first one uses a UV laser and normal photo resist board. The others I saw used 40-50W lasers to burn off black paint from normal pcbs and then thay are etched like normal. BUT I have seen some moly something or other (I forget) in a spray can, this is sprayed on glass so a 40W laser can engrave the glas by eating away at the coating.Hi,
What is the power rating of the laser in that device?
If its a non UV laser make sure the focus point is bang on the coating, use a non reflective coating and if you see the red laser line STOP!!! I bet you know all that already, but in case others dontFunnily enough, I was discussing a similar principle with a colleague the other day. We have a laser cutter/engraver at work, and we where discussing using that to vapourise a layer of resist before etching.
If we get around to giving it a go, then I'll let you know how we get on.
Funnily enough, I was discussing a similar principle with a colleague the other day. We have a laser cutter/engraver at work, and we where discussing using that to vapourise a layer of resist before etching.
If we get around to giving it a go, then I'll let you know how we get on.