Thanks to Rich Olson for sharing this neat method of making circuit boards! Check out his full blog post about it here.
I’ve “rabbit-holed” on various projects – but I may have spent more time trying to come up with new ways to make circuit boards than any other. Over the last few I’ve months developed several new approaches – this one is my favorite.
When you print on glossy inkjet photo paper with a laser printer – something interesting happens. The toner sticks to the photo paper – but doesn’t really embed itself the way it does into normal paper. Hobbyists have found it’s possible to transfer the toner to PCB blanks – and use it as a “resist” to make etched circuit boards.
What I recently figured out is that certain silver adhesive will stick to the printed toner – but not the photo paper. If you apply a few layers of the adhesive – it’s possible to make circuit boards of useful quality.
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