Hi,
A few days ago, I watched this PCB making using Laser printer in youtube.
It's very impressive work for making PCB with small laser.
For Direct laser irradiation of photo-positivematerial
I want to know
1. How they can fouscing of 2 lasers for only one small spot
2. What is the photo-positive material that they use as base PCB material. ( After that material is reacted by laser, that material changed white color.)
3. How they can control laser beam ( actually X carriage do not move, only laser mirror or something move laser beam as like scan beam..)
Also so many peoples are trying to contact to this machine's author with youtube comments,however, I think, they cann't contact with this machine's auther's.
So, please share their contact or web site information if you know them.
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dreammakercnc.blogspot.kr]
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blog.naver.com]